Check the listing for details. 1/2" 12.7mm Chicago Screw & Post, Brass , Black Oxide , Leather , Binding 5 Sets. Condition: New. Listed at 8.65 USD. 1/2" Chicago Screw & PosteBay Store: USBindUniversal! For use in binding, repair, leather goods, hand made products, etc...This listing is for 5 Chicago Screws and 5 Chicago Posts with a solid head.(Chicago Posts with hole through head also available, see store.)Screw Shank Length: 3/8” (9.5mm) Post Length: 1/2” (12.7mm) 8-32 Thread (#8)Finish: Black Oxide, machined from Solid BrassGenuinely Made in California, USA Multiple shipping speeds available.$AVE ON SHIPPING!Discounts on shipping when you shop our store, add items to cart and checkout at once!Free shipping on orders over $40.00! Applies to U.S. shipments only.We ship Worldwide!Contact us for discounted pricing on quantities of 50 or more. Visit our store for more finishes and sizes. If a size or quantity you seek is not listed or have questions, comments, concerns or requests, please contact us.Thanks for looking!