Detailed Product Description screw(socket head cap,hex screw)Material:SCW435 (4137/1.7262)Hardness:34-43HRCcompressive strength:12.9 grand Referance :MISUMI, HASCO,FUTEBA,DME,DANNY standard.Following customers' drawings to process any different kind of plastic component/accessories. ,hardware component/accessories,stamping(die) component/ accessories Order: D*d*L(Outer diameter, inner diameter, ...