About This The package contains 7 different lengths of 1/4 inch screws, some adapted spacers and a special spanner for the screws, all in a plastic assortment box, which can meet your different daily needs. Homeet hexagon socket head cap screws are made of 304 stainless steel, with clear threads, not easy to rust. Homeet hexagon socket head cap screws are made of international standard threads and are suitable for all 1/4 inch camera accessories, such as tripods, quick release plates, and other accessories that attach to your camera. Package Inventory: 4X 1/4“-20*5/16”, 4X 1/4“-20*3/8”, 4X 1/4“-20*1/2”, 4X 1/4“-20*5/8”, 4X 1/4“-20*3/4”, 4X 1/4“-20*7/8”, 4X 1/4“-20*1”, 12X 1/4"-20 Lock washer, 1X screw spanner. Please keep the screws and spanners in a safe place. If you have any questions please feel free to contact us. Overview Material : Stainless Steel Head Style : Hex Item dimensions L x W x H : 0.98 x 0.79 x 0.59 inches Exterior Finish : Stainless Steel Thread Size : 1/4"-20