camera tripod screws material: steel , stainless steel camera screws size: M3-M6 ... -4mm camera screw head shape:with a D ring camera tripod screws :A.Product specifications Camera Screws Size Norminal diameter: M3 ... :0.5-1mm.Custom made products are also welcomed. camera tripod screws material C1006-C1022,sus200,sus201,sus202,sus302,sus303,sus304 ...