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5 16-18X2 Six Lobe Flat Thread...
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Product Description:
5/16-18X2 SIX LOBE FLAT THREAD CUTTING SCREW TYPE F FULLY THREADED 18 8 STAINLESS STEEL. THREAD-CUTTING TYPE-F THREADED SCREWS ARE USED IN HEAVY GAUGE SHEET METAL ALUMINUM ZINC AND LEAD DIE CASTINGS CAST IRON BRASS AND PLASTIC. IN STAINLESS STEEL MATERIAL INTO WHICH THE SCREW IS TO CUT THREADS SHOULD HAVE A LOWER HARDNESS BY 10-20 ROCKWELL HARDNESS. FLAT HEAD SCREWS ARE USED WHEN PROTRUSION OF THE FASTENER ABOVE THE MATING SURFACE IS UNACCEPTABLE. TYPICALLY 100 DEGREE FLAT OR FOR FASTENING SOFTER MATERIALS 82 DEGREES FLAT. |
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