The key choice in leather hardware, patterns & care is not simply which item costs less: are you fastening panels, adding press studs, or cutting a bag shape? Chicago screws, snap fasteners, and a waist-bag template solve different stages of a project. Use the quick take below to match the format to the job before comparing the $15.04 spread between the lowest and highest listed prices.
Quick take
- Single known screw length: The 100-count brass-plated Chicago screw lot is suited to projects calling for a stated 3/8-inch post length.
- Several screw lengths: The 80-set Chicago screw kit covers five sizes and keeps them separated in a storage box.
- Press studs: The snap-fastener kit combines mixed diameters, four colors, and four installation tools.
- Pattern-led project: The waist-bag template is the dedicated choice for cutting a bag with a finished size of about 20x13x6cm.
Listed-price comparison
The listed prices run from USD 10.39 to USD 25.43, a USD 15.04 spread. The bars show relative position among the four prices, not a performance rating.
| Product | Listed price | Relative listed-price bar |
|---|---|---|
| Brass-plated Chicago screws | USD 25.00 | |
| Assorted Chicago screw kit | USD 13.49 | |
| Leather snap fasteners kit | USD 10.39 | |
| Waist bag sewing pattern | USD 25.43 |
Decision matrix
- Need Chicago screws in one stated size? Pick the 100-count brass-plated lot, whose title specifies 3/8 inch.
- Need multiple post lengths? Pick the assorted Chicago screw kit, which lists five sizes and 16 sets for each size.
- Need a non-threaded fastening format? Pick the snap kit, with 10mm, 12mm, and 15mm types plus installation tools.
- Need to create a waist bag? Pick the English-version sewing pattern, which describes a finished bag size and stitch spacing.
Product notes
100-Count Brass-Plated Chicago Screws

Choose this lot when your project calls for Chicago screws in one stated 3/8-inch post length and you want a large quantity on hand. The description also gives a 7/16-inch cap diameter, while the title identifies a brass-plated finish, so the format is distinct from the mixed-size kit and the snap set. The limitation is specialization: the listed size is 3/8 inch rather than an assortment, and the listed price is USD 25.00. That makes the lot less suited to a project where several post lengths are part of the plan, even though its 100-piece format is clear.
80-Set Assorted Chicago Screw Kit

This kit fits makers who are still deciding which post length a leather binding job will need. It groups five sizes, with 16 sets for each size, and the clear storage box separates the components for quick selection. The steel construction and screw-and-base format keep it focused on Chicago-screw assembly rather than press studs. Its limitation is that the assortment divides the total into set quantities per size, so it is not the same choice as a concentrated lot of 100 screws in one 3/8-inch specification. At USD 13.49, it sits USD 11.51 below the single-size lot while remaining a dedicated fastener kit rather than a bag pattern.
Leather Snap Fasteners Kit

Reach for this set when the job calls for press studs rather than Chicago screws. It lists 10mm, 12mm, and 15mm types, a mixed bronze, silver, grey, and golden color assortment, plus an installation tool kit with four tools. The brass buttons and steel tools make the contents distinct from the two screw assortments. The limitation is format: snaps are the intended fastening system, so the kit does not substitute for binding screws when a project specifically calls for a threaded Chicago-screw connection. At USD 10.39, it is the lowest listed price, but the practical reason to choose it is the snap-and-tool combination, not a screw assortment.
Waist Bag Sewing Pattern

Choose this template when the project starts with a waist-bag shape rather than a hardware list. It is an English-version leather craft die-cutting pattern, with a finished bag size described as about 20x13x6cm and a 4mm stitch space. The concrete limitation is its narrow project focus: it is aimed at one waist-bag pattern, not a general Chicago-screw or snap-fastener assortment. The description also says the pattern may be cut into two or three pieces when it is too large, with a joint line shown, so the physical format can involve assembly. At USD 25.43, it is the highest listed price and sits USD 15.04 above the lowest-priced snap kit.
Final recommendation by use case
- For a single-size Chicago-screw job: Choose the 100-count brass-plated Chicago screw lot because its title gives a 100-piece format and a stated 3/8-inch specification.
- For mixed post lengths: Choose the 80-set assorted Chicago screw kit because its five-size assortment is the clearest fit.
- For garments, bags, canvas, or similar work needing press studs: Choose the leather snap fasteners kit, with its listed diameters and four tools.
- For drafting a waist bag: Choose the waist bag sewing pattern because it is a dedicated English-version pattern with a finished-size description.
If you are choosing mainly by listed price, the USD 15.04 spread runs from the snap-fastener kit to the waist-bag pattern. If you are choosing by task, match the fastening system or pattern format first; the price comparison then helps separate the two Chicago-screw choices.