Description: 10 Set boat cover/canopy fittings snap fastener screw kit (10 stainless steel screws, 10 copper sockets, 10 copper snaps) Screw size: 3/19" (4mm) diameter, 5/8" (15mm) length; socket diameter 3/8"; cap diameter 5/8". Screw material is stainless steel, the cap is copper, plating protective layer, no rust, no deformation, easy to use Can be used in tents, sofas, helmets, wall nails, home improvement, baby carriages, safety seats, etc. Suitable for marine boat covers, awnings, outdoor furniture & more. Package Includes: 10 Pieces Snap Fastener Buttons 10 Pieces Snap Fastener Sockets 10 Pieces Snap Fastener Screws