Texas Knifemakers Supply 10 Pack of Corby Fasteners - Assorted Diameters and Metals Made in the USA from 360 free machining brass. Polishes to a mirror finish. Great option for natural handle materials like bone or horn, that may swell or shrink with changes in humidity or temperature Each fastener is 1" long screwed closed, the outside diameter of the shaft is 1/4" and the outside diameter of the head is 5/16" Screw slot can be sanded off when finishing, to create the appearance of solid handle pins. NOTE ON SHIPPING: We ship all orders USPS Priority Mail (2-3 business day delivery) with a tracking number. Amazon automatically combines shipping costs if you order more than one item, saving you money!