Hex Flange Head Self-Drilling Tek Drill Screw 

self-drilling screw The point on a self-drilling screw is designed to efficiently remove material and precisely size the hole for the thread. The length of the drill flute determines the metal thickness that can be drilled. Due to their need to drill and tap into various materials, the standard self-drilling screw is a case hardened heat-treated carbon steel. Self Drilling Screw SELF Tapping Screw Chipboard Screw Self Tek Screw Drywall Screw Hex roofing Screw Finish:   ZINC YELLOW PLATED Material:   C1022 Steel Measurement system:   INCH, Metric Head Style:   HEX Place of Origin:   handan city , China Brand Name:   JK Standard:   DIN,ANSI,ASTM Industry:   Fastener Package:   Small Boxes, Plastic Bags, Bulk in Cartons, Pallet Service:   OEM/ ODM Product name:   Self Driliing Screw MOQ:   2 Ton Delivery time:   30-40…