Zinc Coated DIN934 Hex Bolt and Nut
      A bolt is a form of threaded fastener with an external male thread. Bolts are thus closely related to,
and often confused with, screws.
      A hex cap screw is a cap screw with a hexagonal head, designed to be driven by a wrench (spanner).
      An ASME B18.2.1 compliant cap screw has somewhat tighter tolerances than a hex bolt for the head
height and the shank length. The nature of the tolerance difference allows an ASME B18.2.1 hex cap
screw to always fit where a hex bolt is installed but a hex bolt could be slightly too large to be used
where a hex cap screw is designed in.

Zinc Coated DIN934 Hex Bolt and Nut
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