Choosing snaps for leathercraft comes down to one question: will the post length match your leather thickness? Get it wrong and the snap won't set securely or will wobble loose. If you're deciding between these two awlgrain hardware patterns products, the difference is not color or price - it's duty rating and the leather weight each is built to hold.
Quick verdict
For thick, firm, or multi-layered leather in the 8-10 oz range, the Line 24 with its 5/16" post is the purpose-built choice. For everyday straps, bags, belts, and lighter goods in the 4-7 oz range, the Line 20 set with Regular 3/16" and Short 1/8" posts gives you more versatility in one 100-pack. At the same listed price of $55.95, pick by material, not by cost.
At a glance
| Product | Listed Price | Model / Size | Best For | Pack |
|---|---|---|---|---|
| Black Line 24 Snaps 5/16" Post & 19/32" Cap - Leathercraft Hardware - SLC | USD 55.95 | Line 24, 5/16" Post, 19/32" Cap | 8-10 oz (3.18-3.96 mm) thick leather, heavy-duty | 100 Pack |
| Black Line 20 Snaps - Regular & Short Posts - Leathercraft Hardware - SLC | USD 55.95 | Snap,Line20,Black, Regular 3/16" & Short 1/8" Posts | 4-7 oz (1.60-2.78 mm) medium to thin leather | 100 Pack |
Where each wins
Black Line 24 Snaps 5/16" Post & 19/32" Cap wins for strength on thick leather
- Heavy-duty Line 24 format with a 5/16" post designed to bite into 8-10 oz leather and multi-layer assemblies
- Larger 19/32" cap provides a substantial finished look and holding surface for rugged projects
- Described for long-term reliability where a standard snap would be underbuilt
Black Line 20 Snaps - Regular & Short Posts wins for versatility on everyday weights
- Medium-duty Line 20 format covers the most common leathercraft thicknesses
- Includes two post lengths in the concept: Regular 3/16" for 5-7 oz and Short 1/8" for 4-5 oz, so you can match thin and standard goods without buying two separate packs
- Suited to belts, straps, bags, holsters, and small goods where heavy-duty is unnecessary
Product notes
Black Line 24 Snaps 5/16" Post & 19/32" Cap - Leathercraft Hardware - SLC
This 100-pack from Springfield Leather Company is built around a single, specific job: securing thick leather. The 5/16" post and 19/32" cap are sized for 8-10 oz material, which makes it a strong fit for holsters, heavy bags, tack, or layered sheaths where you need a solid set. You get a uniform heavy-duty fastener across the whole pack, which simplifies production when every piece uses the same weight. The trade-off is specialization - this post length is too long for thin 4-5 oz leather and will not set cleanly on lightweight projects, so it is not a general-purpose assortment.
Black Line 20 Snaps - Regular & Short Posts - Leathercraft Hardware - SLC
This 100-pack, also from Springfield Leather Company, is the flexible option for standard leathercraft. It centers on the Line 20 medium-duty size and addresses two common thicknesses: the Regular 3/16" post for 5-7 oz leather used for most straps and small goods, and the Short 1/8" post for 4-5 oz lightweight work. That range makes it useful if you make a mix of wallets, bags, belts, and accessories and want one snap system to cover them. The limitation is duty rating - it is not described as heavy-duty for 8-10 oz or heavily layered builds, so for the thickest projects you would want the Line 24 instead.
Final choice by use case
- Choose Black Line 24 Snaps 5/16" Post & 19/32" Cap if you work primarily with 8-10 oz leather or stack multiple layers and need a heavy-duty hold with a larger cap. The listed $55.95 gets you 100 heavy-duty snaps tuned to that thickness.
- Choose Black Line 20 Snaps - Regular & Short Posts if you work in the 4-7 oz sweet spot and want coverage for both regular and thin projects. At the same $55.95 for 100 pieces, the dual post lengths give you broader day-to-day utility for belts, straps, bags, and holsters.
If you do both types of work, many makers keep Line 20 on hand for everyday goods and add Line 24 specifically for heavy builds - matching post to leather weight is what delivers a clean, lasting set.
