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5 16-18X1 Unslotted Indented Hex...
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Product Description:
5/16-18X1 UNSLOTTED INDENTED HEX WASHER THREAD CUTTING SCREW TYPE 1 FULLY THREADED ZINC. THREAD-CUTTING TYPE-1 THREADED SCREWS ARE USED IN STEEL SHEETS SRUCTURAL SHAPES SPECIAL ALLOY STEELS CAST IRON BRASS OR PLASTICS. STAINLESS STEEL MATERIAL INTO WHICH THE SCREW IS TO CUT THREADS SHOULD HAVE A LOWER HARDNESS BY 10-20 ROCKWELL HARDNESS. INDENTED HEX WASHER HEAD OFFERS ADVANTAGES OF HEX HEAD PLUS GREATER PROTECTION TO MATING SURFACE. |
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