Get the features of our Crownlock Torque Nuts, but with the added benefit of a Flange. The flange provides greater height and added hoop strength, yielding 30% more power than a standard nut.

Crownlock Flange Torque Nuts are offered in multiple options. The Class 10 Metric version is manufactured from medium-carbon steel and heat-treated to meet Class 10 performance specifications. Designed for high-strength applications and for use with Class 10.9 bolts.

Class 9 Metric Crownlock Flange Nuts are manufactured from low-carbon steel to meet Class 9 performance specifications. These prevailing torque nuts are designed for use with Class 9.8 bolts.

The Grade G version is made from medium-carbon steel and heat-treated to meet Grade G performance specifications. Made for high-strength applications and for use with Grade 8 bolts.

Fast Facts:

  • Flange height and added hoop strength provide 30% more strength than a standard nut.
  • Great for high-volume assembly.
  • Resists loosening at the joint.
  • Consistent torque at tension allows for reliable joint integrity.
  • Manufactured to meet a variety of performance specifications.
  • Meet or exceed all current I.F.I. specifications.
  • Assembly applications include automotive, industrial, and agriculture.

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The availability of the products described on this site, and the product descriptions, may vary from country to country. Consult your STANLEY Engineered Fastening Account Executive or your local distributor for specific product information.