![]() ![]() Common Tek point sizes are #2, #3, #4 and #5 (Series 500) – 2 and 3 most common, 4 and 5 for going through thicker metal. 535 Products About Tapping Screws More Drilling Screws for Metal High-Strength 410 Stainless Steel Hex Head Drilling Screws for Metal 410 stainless steel is strong, wear resistant, and mildly chemical resistant. 14 Metal Roofing Screws: (250) Screws x 1-1/2' Brown Hex Washer Head Sheet Metal Roof Screw. Drill point sizes dictate drilling capacity. 25PCS 14 x 2' Flat Head Sheet Metal Screws Phillips Drive Wood Screws, Black Oxide 304 Stainless Steel 18-8, Self Tapping.More corrosion resistant than 18-8 stainless steel screws, these have excellent resistance to chemicals and salt water. In short, self-tappers can’t drill, self-drillers can as well as tap a thread. Super-Corrosion-Resistant 316 Stainless SteelPhillips Flat Head Screws for Sheet Metal. ![]() Self-drillers can be characterised as a fine thread or a coarse thread, self-tappers can’t.This is probably where the confusion with self-tappers comes in – both kinds of screws are technically self-tapping as far as the function of their threads are concerned, but the massive difference is in the function of their points. SS8M-1.25 mm x 45 mm Phillips Flat-Head Metric Machine Screw. 8M-1.25 mm x 25 mm Stainless Steel Phillips Flat Head Metric Machine Screw. These Flat Head screws have a point “like a drill bit”, these screws create their own hole, and their own thread in one action. M8-1.25 x 25 mm Phillips Flat Head Stainless Steel Machine Screw. At OzSupply Australia we stock the M4.2x 38mm Stainless Self Drilling Flat Head Screws in 50/300pcs.Self-drillers are also commonly called ‘Tek’ screws, a proprietary brand name associated with their unique shape and function. Self Drilling Stainless Steel Screws Flat Head M4.2x38mm 50PCS/300PCS 18-8 Stainless Steel Phillips Flat Head Sheet Metal Screws are somethimes referred to as flat head wood screws and are screws with a coarse thread for use. ![]()
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