... , Plating, Anti-slipping patchCategory: 1. by components Bolts, Screw bolts/Studs, Nuts, Tapping screws, Wooden screws, Washers/Gaskets, Check rings, Pins, Rivets ... and etc. 2. by head types Flat, Oval, Binding, Pan, Round, Truss ... delivery and good service.www.jielimetal.com.cn Cross Recessed Round Head Screw Bolt JL-SCR-100