This 10-set assortment of M3 and M4 binding screws is crafted from durable 304 stainless steel, offering superior corrosion resistance and a professional finish. Designed for precision assembly, these Chicago screws provide a secure, flush fastening solution for leather goods, books, and albums without the need for threading the material. Features and Benefits
- 304 Stainless Steel Construction - Ensures excellent rust resistance and long-lasting durability in various environments.
- Dual Size Assortment (M3 & M4) - Provides versatility for projects requiring different fastener diameters and lengths.
- Flush-Mount Barrel and Post Design - Creates a neat, professional appearance without protruding hardware.
- Complete 10-Set Kit - Offers immediate usability and spares for multiple projects or future repairs. Applications
- Assembling and repairing leather goods like bags, wallets, and belts.
- Creating custom photo albums, scrapbooks, and portfolio bindings.
- Securing layers of material in DIY crafts and industrial sample books.
Thread Sizes: M3, M4. Material: 304 Stainless Steel. Application: Leather, Bags, Photo Albums, Book Binding, General Assembly. Product Type: Binding Screw / Chicago Screw. Quantity: 10 sets. Fastener Length (Typical Range): Varies per size; common lengths for M3: 6-20mm, M4: 8-25mm (specific lengths not stated). Thread Size: M3 and M4. Material: 304 Stainless Steel. Corrosion Resistance: High (304 stainless steel offers good resistance to rust and oxidation). Drive Type: Slotted (standard for Chicago screws). Finish: Natural stainless steel, likely brushed or satin. Hardness: Approx. 70-80 HRB (typical for annealed 304 stainless). Head Style: Binding / Chicago (typically flat or low-profile head with slot). Packaging: Assorted set of M3 and M4 sizes. Product Type: Binding Screw / Chicago Screw / Post Screw. Quantity per Set: 10 sets. Tensile Strength: Approx. 515 MPa (minimum for 304 stainless). Thread Type: Machine screw thread. Typical Application: Leather goods, bags, photo albums, bookbinding, butt hinge assembly. Q: What are the specifications of these binding screws? A: This set includes 10 sets of M3 and M4 size binding screws, also known as Chicago screws or book bolts. They are manufactured from 304 stainless steel, which offers good corrosion resistance. The screws are designed for assembling leather goods, photo albums, and similar projects requiring a post-and-screw fastening system.. Q: What is the quality of the stainless steel used? A: The screws are made from 304 stainless steel, a common grade known for its durability and resistance to rust and corrosion. This material ensures the fasteners maintain their appearance and structural integrity over time, even with regular use. The manufacturing process aims for consistent threading and a smooth finish for reliable assembly.. Q: Are these screws compatible with my leatherworking project? A: These Chicago screws are specifically designed for applications like leather bags, photo albums, and bookbinding. The M3 and M4 sizes are standard for such crafts. It is recommended to check the thickness of your materials to ensure the screw posts are of adequate length for your specific assembly needs.. Q: Is there any warranty on these fasteners? A: Warranty details are typically provided by the seller or retailer from whom you purchase the product. It is advisable to review their specific policy regarding replacements for manufacturing defects. Generally, products like these are sold as-is for DIY and craft applications.. Q: Do these screws offer good value for the price? A: Purchasing a 10-set pack provides good value for hobbyists and professionals who regularly undertake binding projects. The use of 304 stainless steel contributes to longevity, reducing the need for frequent replacements. The assortment of M3 and M4 sizes adds versatility for various material thicknesses..