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25 pieces
1/4-20 X 1 Thread Cutting Screw Type F Hex 410 STAINLESS STEEL Self Tapping
Material410 Stainless SteelThread Size1/4\"-20Screw Size1/4\"Screw Size Decimal Diameter0.52\"Drive StyleExternal HexDrill Bit SizeNo. 1Drill Bit Decimal Size Equivalent0.228\"Thread DirectionRight HandThreadingFully ThreadedThread TypeUNCThread SpacingCoarseTapping MethodThread CuttingTapping Screw TypeFHead TypeHexTip TypeBluntShank Cross SectionRoundScrew FeaturesFlangedSystem of MeasurementInchFor Use InBrass, Cast Iron, Sheet Metal
TYPE F Hardened stainless steel thread-cutting screws are made for use in metals. Use them as general purpose fasteners for almost any fastening purpose in harder metals such as steel, special alloy steels and cast iron. Utilizing a standard machine screw thread, they perform their thread cutting function in metals of any thickness and may be used over and over. Because these screws possess almost triple the strength of ordinary machine screws much smaller screws can be used. When driven into untapped holes (drilled or punched) they stay snug in their self-cut, perfectly mated threads. Type F thread-cutting screws conform to American National Standard machine screw dimensions and is New. Shipped with USPS First Class.
