> ## Content Index
> Fetch the complete content index at: https://cowon.net/llms.txt
> Use this file to discover other available public pages before exploring further.

# Best Staples for Insulation: DEWALT DRS18100 Leads
- URL: https://cowon.net/best-staples-insulation/
- Published: 2026-09-07T07:23:06.000Z
- Updated: 2026-09-07T09:49:17.000Z
- Description: Six insulated cable staple packs compared on leg length, crown width, count and tool compatibility, with a clear pick for gun users and a hand-nail option for small jobs.
- Author: Frederick Cameron
- Tags: Audio & Home Theater, #Tools, #Electrical

The best staples for insulation work, in the sense that most shoppers mean, are DEWALT's 1 in insulated electrical staples in the 540-piece pack, because the 1 in leg clears fat two-conductor cable and the count survives a whole circuit. If you're nailing a handful by hand instead, Gardner Bender's PS-75 in 3/4 in is the better buy at 1.6 oz a pack.

Leg length is what splits this field, and almost nobody checks it first. A 1/4 in crown insulated staple sized for coax will not straddle 12/2 Romex, and a 1 in gun staple is useless without the gun it was cut for. Every pack here is an insulated cable staple: steel or zinc-plated legs with a plastic saddle that keeps metal off the jacket. Match the leg to the cable, then match the staple to the tool.

In this guide
1. [Best staples for insulation at a glance](#best-staples-for-insulation-at-a-glance)
2. [How I screened this field down to six](#how-i-screened-this-field-down-to-six)
3. [Does an insulated staple hold insulation?](#does-an-insulated-staple-hold-insulation)
4. [Leg length is the spec that decides it](#leg-length-is-the-spec-that-decides-it)
5. [1\. DEWALT 1IN Insulated Elect Staples 540 Qty — Best overall](#1-dewalt-1in-insulated-elect-staples-540-qty-%E2%80%94-best-overall)
6. [2\. Gardner Bender PS-75 Insulated Staples — Best budget pick](#2-gardner-bender-ps-75-insulated-staples-%E2%80%94-best-budget-pick)
7. [3\. Arrow 591168 Genuine T59 Insulated Staples — Best for pros](#3-arrow-591168-genuine-t59-insulated-staples-%E2%80%94-best-for-pros)
8. [4\. Gardner Bender MSI-200JT Insulated Metal Staple — Best upgrade](#4-gardner-bender-msi-200jt-insulated-metal-staple-%E2%80%94-best-upgrade)
9. [5\. Mardatt 540 Pcs Insulated U Staple Nail Assortment Set — Best minimal setup](#5-mardatt-540-pcs-insulated-u-staple-nail-assortment-set-%E2%80%94-best-minimal-setup)
10. [6\. YETTAT 1" Insulated Cable Staple MNM1-600 — Best premium](#6-yettat-1-insulated-cable-staple-mnm1-600-%E2%80%94-best-premium)
11. [Which staples fit which gun?](#which-staples-fit-which-gun)
12. [How many staples does a run actually take?](#how-many-staples-does-a-run-actually-take)
13. [What buyers get wrong about insulated staples](#what-buyers-get-wrong-about-insulated-staples)
14. [The verdict](#the-verdict)
15. [FAQ](#faq)

## Best staples for insulation at a glance

| Pick                                                                                                                     | Leg / size               | Count  | Price                                                              |
| ------------------------------------------------------------------------------------------------------------------------ | ------------------------ | ------ | ------------------------------------------------------------------ |
| **Best overall**[DEWALT 1IN Insulated Elect Staples 540 Qty](https://www.amazon.com/dp/B0BB4PV987?tag=cowonhq-20)        | 1 in                     | 540    | [Check Price](https://www.amazon.com/dp/B0BB4PV987?tag=cowonhq-20) |
| **Best budget pick**[Gardner Bender PS-75 Insulated Staples](https://www.amazon.com/dp/B000BPF2AM?tag=cowonhq-20)        | 3/4 in                   | 50 pk  | [Check Price](https://www.amazon.com/dp/B000BPF2AM?tag=cowonhq-20) |
| **Best for pros**[Arrow 591168 Genuine T59 Insulated Staples](https://www.amazon.com/dp/B00004Z2IV?tag=cowonhq-20)       | 1/4 in crown11/16 in leg | 300    | [Check Price](https://www.amazon.com/dp/B00004Z2IV?tag=cowonhq-20) |
| **Best upgrade**[Gardner Bender MSI-200JT Insulated Metal Staple](https://www.amazon.com/dp/B00PSFPW1O?tag=cowonhq-20)   | 1/2 in                   | 200 pk | [Check Price](https://www.amazon.com/dp/B00PSFPW1O?tag=cowonhq-20) |
| **Best minimal setup**[Mardatt 540 Pcs Insulated U Staple Nail Set](https://www.amazon.com/dp/B09MVZTP71?tag=cowonhq-20) | 0.36–0.56 in             | 540    | [Check Price](https://www.amazon.com/dp/B09MVZTP71?tag=cowonhq-20) |
| **Best premium**[YETTAT 1" Insulated Cable Staple MNM1-600](https://www.amazon.com/dp/B0DFYNHS9L?tag=cowonhq-20)         | 1 in                     | 320    | [Check Price](https://www.amazon.com/dp/B0DFYNHS9L?tag=cowonhq-20) |

## How I screened this field down to six

I started from the cable staples category and pulled every insulated pack with published dimensions, then compared the size, count and weight figures side by side. Anything without a stated leg length or crown width got cut, because that single number decides whether a staple works on your cable.

What survived splits cleanly into two groups. Three packs are gun staples: the DEWALT 1 in, the Arrow T59 and the YETTAT MNM1-600\. Three are hand-driven: the PS-75, the MSI-200JT and the Mardatt assortment. That split matters more than brand, because a gun staple in a toolbox with no gun is scrap.

Count and pack weight were the next screen. The DEWALT pack lists 540 pieces at 1.52 lb, the Mardatt set 540 pieces at 0.82 lb, the Arrow strip 300 at 1.9 oz. Those figures tell you how much steel is actually in the box.

- Every pick has an insulating saddle or sleeve between metal and cable jacket
- Every pick lists a size figure you can measure against your cable
- Only one pick, the Arrow 591168, publishes a warranty entry
- Only one seller lists each of the six packs

I did not weigh, drive or pull-test anything. This is a comparison of published specifications and the manufacturers' own claims, screened for the choices a buyer has to make before the box arrives.

## Does an insulated staple hold insulation?

Here's the honest answer, and it's the reason the phrase "best staples for insulation" trips people up. None of these six is a batt-holding fastener. "Insulated" here describes the staple itself: a plastic or polyethylene saddle that separates the steel leg from the cable jacket. Gardner Bender says the polyethylene insulator on the MSI-200JT "protects cables and helps prevent arc faults". That's insulation on the fastener, not insulation on your wall.

So if you arrived looking for something to pin fiberglass batts or hold a vapour barrier, none of the six packs is described for that job, and I'm not going to pretend otherwise. What these do is secure cable running through the same framing bays your insulation sits in, which is why the two searches collide.

Three things worth knowing before you decide:

1. **Insulated cable staples are sized to the cable, not the cavity.** A 1 in leg and a 3/4 in leg are different tools for different jackets.
2. **The saddle is the whole point.** A bare steel staple driven hard into Romex can bite the jacket. The plastic bridge is what stops that.
3. **Some of these carry outdoor claims.** Gardner Bender describes the PS-75 saddle as UV resistant, and Arrow calls the 591168 steel corrosion resistant.

If insulation-holding is genuinely your job, judge any candidate on whether the listing names that use. These listings name cable.

## Leg length is the spec that decides it

The specification that decides this purchase is leg length, and it's the one people scroll past. Every pack here publishes a figure, and the spread is wide: 0.36 in at the small end of the Mardatt assortment, 1 in on both the DEWALT and the YETTAT.

Think of it as clearance. The saddle has to bridge over the cable without crushing it, and the legs have to reach past the cable into solid wood on both sides. Too short and you flatten the jacket or the staple stands proud. Too long and you're leaving leg buried where it does nothing, which is fine mechanically but wasteful.

Rough guide from the figures in this set:

- **0.36 to 0.44 in**: thin single cables, low-voltage runs, small telecom
- **11/16 in leg, 1/4 in crown** (Arrow 591168): coax, CAT5 and CAT6, phone
- **1/2 in** (MSI-200JT): two-conductor #12 and #14 per Gardner Bender's own listing
- **3/4 in** (PS-75): Romex, UF and NM cable per the listing
- **1 in** (DEWALT, YETTAT): the fattest jackets and gun-driven bulk work

Crown width sits alongside it. Arrow publishes 1/4 in crown and 1/4 in insulator height on the 591168, which is a narrow bridge. That's deliberate for round data cable and wrong for flat Romex. Read both numbers, not one.

## 1\. DEWALT 1IN Insulated Elect Staples 540 Qty — Best overall

**A 1 in insulated staple in a 540-piece pack, which is the combination that gets a full circuit stapled without a second trip.**

[![DEWALT 1 in insulated electrical staples pack of 540 — the largest leg length and highest count in this comparison](https://m.media-amazon.com/images/I/513tuVPdyUL._SL500_.jpg)](https://www.amazon.com/dp/B0BB4PV987?tag=cowonhq-20)

**Best for:** gun users running long cable circuits **Skip it if:** you own no cable stapler at all

Two things put this DEWALT pack first. The 1 in size is the longest leg in the set, tied with the YETTAT, which means it clears the thickest two-conductor jackets you'll meet in residential framing. And 540 pieces is the joint-highest count here, matching the Mardatt assortment but in one size rather than four.

Pack weight is 1.52 lb across dimensions of 3 x 5.81 x 1 in, the heaviest box of the six. That weight is steel, and it's a fair proxy for how much fastener you're actually getting. The model reference is DRS18100.

The listing is sparse. DEWALT's one feature line just restates the size and count, so there's no published claim about the insulator material, no corrosion note, no warranty entry. Compare that to Gardner Bender, which spells out polyethylene and zinc plating, and you're buying more on brand and specification than on description.

The trade-off is tool dependence. This is a collated gun staple, and 540 of them do nothing in a drawer if you don't have a stapler that takes them. The 3/4 in PS-75 and the 1/2 in MSI-200JT both drive with a hammer. This one asks for equipment first.

**Pros:**

- Longest 1 in leg in this comparison
- 540 pieces, joint-highest count here
- Heaviest pack at 1.52 lb of fastener
- Single consistent size, no sorting

**Cons:**

- Needs a compatible cable stapler
- Listing publishes almost no product detail
- No stated insulator material or corrosion claim
- Sits in the upper price positions of this set

[Check Price on Amazon](https://www.amazon.com/dp/B0BB4PV987?tag=cowonhq-20)

## 2\. Gardner Bender PS-75 Insulated Staples — Best budget pick

**The cheapest pack here and the one buyers choose most often in this set, with a 3/4 in size aimed straight at Romex.**

[![Gardner Bender PS-75 white insulated staples in 3/4 inch — the cheapest pick and the fastest seller of the six](https://m.media-amazon.com/images/I/41A2m+VUJ3L._SL500_.jpg)](https://www.amazon.com/dp/B000BPF2AM?tag=cowonhq-20)

**Best for:** small hand-nailed repairs and outdoor runs **Skip it if:** you have hundreds of staples to drive

This is the pack I'd hand someone doing one job. It's the cheapest of the six and it sells faster than everything else here, which tells you the 50-pack size matches how most people actually buy. At 1.6 oz it's the lightest box in the comparison, second only to the Arrow strip at 1.9 oz.

The 3/4 in size is aimed at Romex, UF and NM cable per the listing. Gardner Bender says the polyethylene saddle is UV resistant and "will not rust, rot or deteriorate", which is the only explicit outdoor durability claim in this set alongside Arrow's corrosion note. The nails are described as zinc-plated, and the company claims both drive together without splitting wood, with recessed heads for minimum exposure.

White saddles are the giveaway detail. On white-jacketed cable or painted framing they disappear; on anything else they're visible. Dimensions are 0.1 x 0.75 x 0.38 in per staple.

Where it loses is volume. Fifty staples covers a short run and no more, so a full circuit means several packs and repeated hammer work. The DEWALT and Mardatt sets each carry 540 pieces. This is a repair pack, not a jobsite pack.

**Pros:**

- Cheapest pack in this comparison
- Fastest-selling of the six here
- UV-resistant polyethylene saddle claim
- Zinc-plated nails per the listing
- Lightest box at 1.6 oz

**Cons:**

- Only 50 pieces, smallest count here
- Hand-nailing gets slow over long runs
- One size only, no assortment
- No published warranty entry

[Check Price on Amazon](https://www.amazon.com/dp/B000BPF2AM?tag=cowonhq-20)

## 3\. Arrow 591168 Genuine T59 Insulated Staples — Best for pros

**A 1/4 in crown, 11/16 in leg staple built for data cable, and the only pick in this set with a published warranty entry.**

[![Arrow 591168 clear T59 insulated staples, 300 count — the only pick here with a listed warranty](https://m.media-amazon.com/images/I/41OT0wAK6JL._SL500_.jpg)](https://www.amazon.com/dp/B00004Z2IV?tag=cowonhq-20)

**Best for:** data and coax work with a T59 gun **Skip it if:** you are stapling 12/2 or 14/2 Romex

Arrow publishes more geometry than anyone else here: leg length 11/16 in, crown width 1/4 in, insulator height 1/4 in, 300 to a pack. That's the level of detail you want when you're threading cable behind trim and cannot afford a staple that stands off the surface.

It's also the only pick in this comparison with a warranty listed at all. Arrow describes the T59 as suited to computer, CAT5 and CAT6, RG6 and RG9, coax and phone cable "without crimping", and says the steel fastener is corrosion resistant for outdoor use with a black plastic insulator protecting the wires.

Second-cheapest of the six and lightest but one at 1.9 oz, in a 4.3 x 1.15 x 4 in box. Clear insulators keep it discreet on light surfaces.

The catch is stated plainly in Arrow's own copy: these are designed to be used exclusively with the T59 professional insulated cable staple gun. No T59, no use. And that narrow 1/4 in crown is wrong for flat 12/2 or 14/2 Romex, which is exactly what the Gardner Bender packs handle. This is a specialist, not a general-purpose staple.

**Pros:**

- Publishes leg, crown and insulator height figures
- Only pick here with a listed warranty
- Corrosion-resistant steel claim for outdoor runs
- Second-cheapest in this set
- Clear insulator stays discreet

**Cons:**

- Locked to the Arrow T59 gun
- 1/4 in crown too narrow for flat Romex
- 300 count trails the 540-piece packs
- No use as a hand-driven staple

[Check Price on Amazon](https://www.amazon.com/dp/B00004Z2IV?tag=cowonhq-20)

## 4\. Gardner Bender MSI-200JT Insulated Metal Staple — Best upgrade

**A 1/2 in steel staple with a polyethylene insulator, spec'd on the listing for #12 and #14 two-conductor cable and driven with a hammer.**

[![Gardner Bender MSI-200JT blue insulated metal staples, 200 pack — hammer-driven with a polyethylene insulator](https://m.media-amazon.com/images/I/41lLxkeAM1L._SL500_.jpg)](https://www.amazon.com/dp/B00PSFPW1O?tag=cowonhq-20)

**Best for:** hammer-driven framing work on NM, BX and MC **Skip it if:** you want one staple size for every cable

This is the step up from the 50-pack PS-75 without moving to a gun. Two hundred staples at 1/2 in, 1.07 lb in the box, dimensions 5.8 x 3.7 x 3.6 in. Gardner Bender names the cable types directly: two-conductor #12 and #14 non-metallic, plus BX, MC, AC and UF. That list covers most of what runs through a residential stud bay.

The company describes a durable polyethylene insulator that "protects cables and helps prevent arc faults", steel construction for strength, and sharp burr-free tips for easy starting with less damage to wood. Installation is described as placing the staple over the cable and driving it with a hammer, which makes it a genuine framing-and-construction staple rather than a tool-specific consumable.

Blue saddles are the most visible of the six, which is either useful for spotting your own work later or a nuisance on finished surfaces.

Sitting third in price, it's the middle option here, and 1/2 in is a compromise leg. Fat jackets want the 3/4 in PS-75 or a 1 in gun staple. Thin low-voltage cable is better served by the Mardatt assortment's smaller sizes.

**Pros:**

- Lists specific cable types it fits
- Polyethylene insulator with arc-fault claim
- 200 pieces, four times the PS-75 count
- Hammer-driven, no gun needed
- Burr-free tip claim reduces wood damage

**Cons:**

- 1/2 in is short for the fattest jackets
- Blue saddles stand out on finished work
- No published warranty entry
- Hand-driving still slow at volume

[Check Price on Amazon](https://www.amazon.com/dp/B00PSFPW1O?tag=cowonhq-20)

## 5\. Mardatt 540 Pcs Insulated U Staple Nail Assortment Set — Best minimal setup

**Four sizes from 0.36 in to 0.56 in in one 540-piece case, which removes the guesswork if your cable runs are mixed.**

[![Mardatt 540-piece insulated U staple assortment in a storage case — four sizes covering 0.36 to 0.56 inches](https://m.media-amazon.com/images/I/51tJrO4jo0L._SL500_.jpg)](https://www.amazon.com/dp/B09MVZTP71?tag=cowonhq-20)

**Best for:** mixed cable sizes with no size guessing **Skip it if:** you need a single size in bulk

The argument for this one is coverage. Four sizes, 0.56 in, 0.44 in, 0.41 in and 0.36 in, 540 pieces total, in a plastic case Mardatt says carries a size chart. Nothing else here solves the problem of not knowing what size you need until the cable is in your hand.

At 0.82 lb it's the lightest of the two 540-piece packs, which follows from the smaller sizes: the DEWALT box weighs 1.52 lb for the same count in 1 in. Mardatt says the insulation is PVC with high temperature and wear resistance, describes burr-free sharp tips with straight legs, and lists the same cable range as Gardner Bender, two-conductor #12 and #14 non-metallic, BX, MC, AC and UF.

The breakdown Mardatt publishes starts at 100 pieces of the largest size and 200 of the next, so the count is not split evenly.

Two problems. Every size here tops out at 0.56 in, well short of the 3/4 in and 1 in options, so heavy jackets are out of range. And an assortment means you burn through your most-used size first and are left with three you don't want. It also sells slower than the single-size Gardner Bender packs.

**Pros:**

- Four sizes from 0.36 in to 0.56 in
- 540 pieces, joint-highest count here
- Storage case with a size chart
- PVC insulation with heat-resistance claim
- Burr-free straight-leg tip claim

**Cons:**

- Largest size only 0.56 in
- Uneven split leaves odd sizes behind
- Slower seller than the Gardner Bender packs
- No published warranty entry

[Check Price on Amazon](https://www.amazon.com/dp/B09MVZTP71?tag=cowonhq-20)

## 6\. YETTAT 1" Insulated Cable Staple MNM1-600 — Best premium

**A 1 in insulated cable staple in 320 pieces, sold specifically as a refill for the M12 cable stapler and nothing else.**

[![YETTAT 1 inch red insulated cable staples, 320 count — refills sized for the M12 cable stapler gun](https://m.media-amazon.com/images/I/41PruV753kL._SL500_.jpg)](https://www.amazon.com/dp/B0DFYNHS9L?tag=cowonhq-20)

**Best for:** M12 cable stapler owners buying refills **Skip it if:** your gun is any other brand

If you already own the M12 cable stapler, this is a straightforward refill decision. YETTAT lists the size as 1 in x 1 in x 0.1 cm, count 320, weight 1.3 lb, model MNM1-600\. The 1 in length ties the DEWALT for the longest leg in this comparison, and YETTAT says it "ensures a secure grip on wood surfaces while accommodating electrical cables".

Compatibility is the entire pitch. Four of the five feature lines mention the M12 stapler, describing residential and commercial use for fastening cable to wood. Beyond that the claims are generic: high-quality materials, reliable performance, efficient application. Nothing about the insulator material, nothing about corrosion, nothing about temperature. Red saddles are the most conspicuous of the six.

The numbers are where it struggles. It's the most expensive pick here and the slowest seller of the six, and 320 pieces is well below the 540 in both the DEWALT and Mardatt packs. It also sits in a different category from the other five, filed under staples rather than cable staples, which is worth noting when you're comparing.

Buy it because your gun takes it. Not for the specification sheet.

**Pros:**

- 1 in leg ties the longest here
- 320 pieces per pack
- Named compatibility with the M12 stapler
- Consistent single size, no sorting

**Cons:**

- Highest price position in this set
- Slowest seller of the six
- 320 count trails both 540-piece packs
- Tied to one gun brand
- No published insulator or corrosion detail

[Check Price on Amazon](https://www.amazon.com/dp/B0DFYNHS9L?tag=cowonhq-20)

## Which staples fit which gun?

Tool compatibility is the second half of the decision, and getting it wrong wastes a whole pack. Three of these six are gun consumables and three drive with a hammer.

The gun-locked ones:

- **Arrow 591168** — Arrow's listing states these are for exclusive use with the T59 professional insulated cable staple gun
- **YETTAT MNM1-600** — described throughout as designed for the M12 cable stapler
- **DEWALT DRS18100** — a 1 in collated electrical staple, so a compatible stapler is assumed

The hand-driven ones:

- **Gardner Bender MSI-200JT** — the listing describes placing the staple over the cable and driving with a hammer
- **Gardner Bender PS-75** — twin nails that Gardner Bender says drive together
- **Mardatt assortment** — U-shaped nail staples with straight legs for insertion

The practical rule is short. Own a T59? Buy Arrow. Own an M12 stapler? Buy the YETTAT refills. Own a hammer and nothing else? The two Gardner Bender packs and the Mardatt set are your only real options among these best staples for insulation and cable work. Buying a gun staple to hand-drive doesn't work, because the collation strip and the crown geometry aren't built for it.

## How many staples does a run actually take?

Electrical code generally wants cable supported at regular intervals along a run and again near boxes, so the count you need scales with linear feet, not with the number of circuits.

Work it as a rough sum. A 30 ft run stapled roughly every 3 ft needs around ten staples, plus one near each end. Do four of those runs and you're at fifty, which is the entire PS-75 pack.

That arithmetic reorders the picks fast:

1. **50 pieces** (PS-75) — one or two short runs, a repair, a single fixture drop
2. **200 pieces** (MSI-200JT) — several rooms of hand-driven work
3. **300 pieces** (Arrow 591168) — a substantial data or coax install
4. **320 pieces** (YETTAT) — a gun-driven job of similar scale
5. **540 pieces** (DEWALT, Mardatt) — whole-house or repeat jobs

Buy one tier above your estimate. Staples don't expire, and the second trip costs more in time than the extra pieces cost outright. The one exception is the Mardatt assortment: 540 pieces split four ways behaves more like four smaller packs than one big one, so count only the size you'll actually use.

## What buyers get wrong about insulated staples

Three mistakes come up over and over in this category, and all three are avoidable before you order.

**Buying on count alone.** The 540-piece DEWALT and Mardatt packs look like obvious value next to a 50-piece box. But the DEWALT needs a gun and the Mardatt tops out at 0.56 in. Neither number tells you whether the staple fits your cable or your tool.

**Ignoring the saddle colour.** It sounds trivial until the run is visible. White on the PS-75 vanishes on light framing. Blue on the MSI-200JT and red on the YETTAT do not. Arrow's clear insulator on the 591168 is the most discreet of the six.

**Driving too hard.** The insulator exists to hold the staple off the jacket. Overdrive it and you've defeated the point of buying an insulated staple in the first place. Gardner Bender specifically calls out recessed nail heads on the PS-75 for minimum exposure, which only helps if you stop at flush.

One more worth naming: only one seller lists each of these six packs. That's normal for a consumable like this, but it means you're comparing brand claims rather than shopping around, so the published specifications carry more weight than usual.

## The verdict

If you're driving staples with a gun, the DEWALT 1 in pack of 540 is the pick. The 1 in leg clears the thickest residential jackets, the count is the joint-highest here, and the 1.52 lb box is the most fastener of the six. If you're driving them with a hammer, Gardner Bender's PS-75 in 3/4 in is the pick, cheapest in this set, fastest-selling here, and the only pack with an explicit UV-resistance claim on the saddle.

The cutoff is the tool in your hand. That single question sorts these six faster than any other, because three of them are gun-only consumables and three are not.

Two conditions flip it. If your cable is coax, CAT5 or CAT6 rather than Romex, the Arrow 591168 with its 11/16 in leg and 1/4 in crown is the correct geometry, and it's the only pick here with a published warranty. If you don't yet know what sizes you need, the Mardatt set's four options from 0.36 in to 0.56 in buys you a decision you can defer.

The runner-up's exact advantage over the DEWALT is independence. The PS-75 works with nothing but a hammer, and 50 pieces is the right quantity for the small job most people are actually doing.

## FAQ

### Are the best staples for insulation the same as cable staples?

The best staples for insulation, as most people search it, are cable staples: fasteners with a plastic saddle that holds steel legs off a cable jacket. None of the six packs here is described for pinning fiberglass batts or vapour barrier. The word insulated refers to the fastener, not the wall. Check any listing for the specific use you have in mind.

### Is a 540-piece pack worth it over a 50-pack?

A 540-piece pack is worth it if you're stapling whole circuits, since a 30 ft run stapled every 3 ft eats around ten staples and four such runs empty a 50-pack. The DEWALT pack of 540 covers repeat jobs. For one repair or a single fixture drop, the 50-piece PS-75 is the sensible size.

### What leg length do I need for 12/2 Romex?

The leg length you need for flat two-conductor cable is longer than data-cable geometry allows. Gardner Bender lists the 1/2 in MSI-200JT for #12 and #14 two-conductor and the 3/4 in PS-75 for Romex, UF and NM. The 1 in DEWALT and YETTAT staples give the most clearance. Arrow's 1/4 in crown is built for round coax instead.

### DEWALT DRS18100 or Gardner Bender PS-75?

Choose between the DEWALT DRS18100 and the PS-75 on tooling. The DEWALT is a 1 in collated gun staple in 540 pieces, so it needs a compatible stapler and suits long runs. The PS-75 is 3/4 in, 50 pieces, hammer-driven, cheapest here, with a UV-resistant saddle claim. No gun means the Gardner Bender wins by default.

### Can I use Arrow T59 staples in another stapler?

Arrow T59 staples in another stapler is not something the listing supports. Arrow states the 591168 is designed for exclusive use with the T59 professional insulated cable staple gun. The same logic applies to the YETTAT MNM1-600, which is sold as an M12 cable stapler refill. Match consumable to gun, or buy a hand-driven staple instead.

Start with the tool question, because it eliminates half this list in one step. If you already own a cable stapler, buy the 540-piece DEWALT and stop reading: 1 in legs and the heaviest box of fastener here mean one pack covers work that would take four boxes of hand-driven staples. If you own only a hammer, the 3/4 in PS-75 gets you through a repair for the least money in this set. Measure your cable, count your linear feet, then buy one size tier up from your estimate. Leftover staples cost nothing to keep.

*Last updated: September 7, 2026\. Product availability re-checked.*

*This page contains affiliate links. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.*