Hex Flange Head Self-Drilling Tek Screw 

Hex washer head self drilling screws have a drill point at the tip of the thread drills its own pilot hole in to metal allowing for quick installation and fastening while saving time and effort with just a single step. he self drilling point also referred to as a tek can self drill metal up to a thickness of 0.187 inches and is best used with a lot of pressure and a slow drill speed; if drilling too fast you could run the risk of over heating the metal drilling tip which could cause it to wear out or warp. Self Drilling Screw SELF Tapping Screw Chipboard Screw Self Tek Screw Drywall Screw Hex roofing Screw  Self Drilling Screw SELF Tapping Screw Chipboard Screw Self Tek Screw Drywall Screw Hex Roofing Screw Finish:   zinc Material:   Steel C1022a Measurement system:   Metric Head Style:   HEX Place of Origin:   handan city , China Brand Name:   JK Name…

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