#484012

Diameter Thread Threads Length Grade Finish Weight
5 (M5) N/A 0.8 ISO 8 Geomet 500A .0039
Diameter 5 (M5)
Thread 0.8
Length
Grade ISO 8
Finish Geomet 500A
Weight .0039

  • ISO 8
  • Carbon Steel


The Serrated Flange Lock Nut, or the Whiz-Lock Nut, is the Serrated Flange Hex Bolts brother. Serrated Flange Hex Nuts are all-metal, free-spinning nuts with a built-in serrated washer. The serrations are case hardened and act as locking teeth while distributing the clamping load over a large area. As the bolt is tightened, the teeth grab into the material it’s being fastened to preventing loosening in vibrating applications (such as truck frames). Earnest offers the nuts in metric sizes in a property class 8 strength level.

Serrated Flange Hex – Class 8

  • Serrated teeth lock the nut into place
  • Large bearing surface
  • All-metal, free-spinning nut
  • Case hardened to be used with fasteners up to a strength level of Property Class 8
  • Proof Load strength of 830 MPa (120,00 psi min)
  • Sizes range from M6 to M16
  • Meets DIN 6923 standards
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