Product description<br> Size: 10mm & 15mm Screw <br> Specification:120pcs Fastener snaps kit high quality stainless steel marine grade canvas boat cover snap button kit<br> Color: Silver<br> Snaps Meterial: Brass and nickel-plated steel<br> Screw Meterial: 304 stainless steel<br> Setting Tool Meterial: 201 stainless steel<br> Screw Size: 10x10mm(0.39''x 0.39''), 10 x 15 mm(0.59''x 0.59'')<br> Button cap dia: 15mm/0.59'' <br> Package Detail: 40pcs x Socket,40pcs x cap,20pcs x screw(150mm) ,20pcs x screw(15mm) 1 x Anvil,2 x Setting tool,1 x Storage box<br> Feature:<br> Snaps are made of brass and nickel-plated to add durability, 304 stainless steel screws have superior rust resistance and excellent oxidation resistance. The snaps with heavy-duty construction ensure a firm grip that will remain secure through years of use all stainless parts, superior snap function and holding strength. Using the snaps and setting tools, you can install or fix up some items whenever and wherever possible.<br> Application: <br> These snap buttons can be installed on wood, plastics, canvas, etc. It can be used indoors and outdoors for a long time, it has excellent anti-corrosion and anti-rust performance to prolong snaps lifespan.