ForgeFix TechFast Cover Caps are specifically designed for use with TechFast Screws with an 8mm Hex head, 16mm or 19mm washers. Offers a concealed yet aesthetically pleasing finish where screws would normally be bare to the elements or the eye.Select Option Goosewing Grey 16mm Pack 100Goosewing Grey 19mm Pack 100Olive Green 16mm Pack 100Olive Green 19mm Pack 100Poppy Red 16mm Pack 100Poppy Red 19mm Pack 100 Add to Basket Quantity