Looking for a reliable solution to install your composite deck. Our 1000PCS Hidden Fasteners are the answer. Made of high density nylon, they are strong and corrosion resistant. Stainless steel screws ensure a firm installation. These fasteners are specifically designed for composite decking with grooves, ensuring each deck has the same clearance, promoting air circulation and drainage, and creating a clean, fastener free appearance. With 1000 pieces in a pack, when the joist space is 12 in. apart, it can cover about 400 sq. ft. of deck; at 16 in. apart, it can cover about 480 sq. ft. Installation is easy: install against the first deck pair in the center of each joist, don't fully tighten, re insert the second deck, install the second row, then tighten the first row. Get your pack now and enjoy a hassle free deck installation experience. Color: Black.