标准件简介标准件简介相关标准常见名称split washer弹簧垫片（一般厂家会管washer叫“华司”）flat washer平垫片Self tapping screw自攻螺丝Self drilling screw自钻螺丝drywall screw 干墙螺丝/干壁螺丝/墙用螺丝high low screw高低牙螺丝collated screw链带螺丝Concrete screw 水泥螺丝Tri-
