EASY TO INSTALL: Removal and installation of our binder screw are both very simple, all you need is a screwdriver and chicago fasteners, dig a hole, put them in, and you’re done! They are easily stored, we put them into a delicate and transparent storage box, fully arranged, so you can easily find the one you need. STURDY & DURABLE: Leather screws have a pretty great polish considering they are mass-produced. The slots are low profile, the finish is smooth with a fine outline, and the screw heads don't have burrs, making our Chicago rivets durable and sturdy at the same time. VERSATILE: These small Chicago screw buttons are versatile and perfect for embellishing homemade crafts or various leather items like belts, handbags, wallets, shoes, and more. Use them for document binding, watches, booklets, and photo albums. COLOR & MATERIAL: To match your accessories, screw rivets for leather come in Gun Metal, Silver, Gold, Bronze, and Antique Copper. These Chicago binding screws are made of Zinc Alloy Head and Iron Screw, ensuring a secure fit without color issues. SIZE & QUANTITY: This set contains 150 binding screws of fixed sizes and shapes, packed in a plastic container for easy carrying. The screw's head diameter is 8MM= 5/16 Inch and height is 6MM = 15/64 Inch.Date First Available: June 14, 2022. Country of Origin: China. Manufacturer: Jozamer. Item Weight: 8.3 ounces. Best Sellers Rank: #15,344 in Arts, Crafts & Sewing. Customer Reviews: 4.4 4.4 out of 5 stars 74 ratings 4.4 out of 5 stars. : B0B437BHHS. Package Dimensions: 5.08 x 2.72 x 0.87 inches. Size: 6 mm. Fastener Type: Machine Screw. Thread Coverage: Fully Threaded. Head Type: Round. Color: Gun Metal, Silver, Gold, Bronze, Antique Copper. Brand: Jozamer. Metal Type: Alloy Steel. Exterior Finish: Copper,Metal,Plastic,Zinc. Head Style: Round, Binding. Material: Alloy Steel, Iron, Copper, Zinc.