... :M5-M20 3)Size:various 4)Head style:various self drilling screwStandard:DIN, ANSI, GB, JISMaterial: stainless steel, carbon steel, steelSize ... ,6.8,8.8,10.9,12.9Finish: zinc plated in yellow, blue, white.or according to customers requirements.Packing: export ... drawings and samples with high quality.If you are interested in our products , please tell us. head styleDriver stylePan HeadPhilips cross ...