self drilling screw We are a professional manufacturer for Self Drilling Screw such as hex washer head, hex flange washer heads, modify truss head, large wafer head, and Lotus head with stainless steel head cap and bugle head Self Drilling Screws etc.

self drilling screw We are a professional manufacturer for Self Drilling Screw such as hex washer head, hex flange washer heads, modify truss head, large wafer head, and Lotus head with stainless steel head cap and bugle head Self Drilling Screws etc. self tapping screw Self-tapping screws come in all sizes and tip types, and they have various shaped heads. When you choose the right size self-tapping screw, you should take into account the length of the screw tip, according to the material¡¯s thickness.