【Features】Precision made 1/4"-20 Stainless Steel (metal) Tripod screws1/4'’metal male thread. 【Material】The main body was made of High-grade metal, Nickel plating on the surface. 【Widely used】Can be used with camera mounting plate,quick release plate, tripods,monopods,etc. 【Package Includes】 15 pcs 1/4''-20 screw,include 3 sizes,5 pcs of each size,meet the needs of different lengths. 【Quality assurance】100% quality assurance,High quality is our only belief. I believe you will receive our products and you will be satisfied.