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hex head flange bolt

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  • What is a hex flange bolt?

  • Hex flange bolt is a one-piece forged bolt with a hex washer head. The washer head always in 2 types, serrated flange and smooth flange, the so called flat bearing surface. Hex flange bolts always made by medium carbon steel, alloy steel and stainless steel.

  • What are the flange bolt dimensions and thread types?

  • Hex flange bolt dimensions are defined in both metric and imperials sizes with unified national coarse pitch (UNC), fine pitch (UNF), fixed pitch (UN) and iso metric thread profile. These are produced across all material categories and astm specifications.

  • What does a flange under the head mean?

  • A flange under the head means a separate washer is not necessary. For strength comparable to that of Grade 9 steel and the corrosion resistance of stainless steel, choose these screws.

  • What is a 6721 flange bolt?

  • on EU orders of over 60 nett. The DIN 6721 flange bolt is a hexagon headed bolt or screw incorporating a flange, negating the need for a washer. Flange bolts are a more attractive alternative to their DIN 931 and DIN 933 hex driven counterparts.

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