Hex Machine Keys

Hex keys are machine keys cut from hex key stock to lengths under 12 inches and are typically considered undersize. Hex keys are used in a variety of applications from tools to drive shafts in gear boxes.

  • Available in Carbon Steel
  • Hex size is measured across parallel flats
  • Visit our Product FAQs to learn more about Key Stock & Machine Keys
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Hex Machine Keys

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  • Carbon Steel
  • Plain
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  • .625" (5/8)
  • 1.000" (1)
  • 2.000"
  • 6.000" (6)
  • 8.000" (8)
  • Low Carbon