#363148

Diameter Thread Threads Length Grade Finish Weight
0.5625 (9/16) N/A 12 Grade 8 Zinc Yellow & Wax .0537
Diameter 0.5625 (9/16)
Thread 12
Length
Grade Grade 8
Finish Zinc Yellow & Wax
Weight .0537

  • Grade 8


Side Lock Nuts, or Center Lock Nuts, are common all-metal Hex Lock Nuts with side crimps. These side crimps are engaged when the nut is applied to a male thread. The crimping creates metal-to-metal contact that prevents the nut from loosening in high-vibration applications. Earnest offers Top Lock Nuts in Grades A and 8 to ensure their strength and durability.

2-Way Center Lock Nut – Grade A

  • Side crimp creates its grip strength from metal-to-metal contact with male thread
  • Either side can be wrenched into place
  • Available in lefty threads
  • Sizes range from 1/4to 1”
  • Meets IFI 100/107 standards
  • 2-Way Center Lock Nut – Grade 8

  • Side crimp creates its grip strength from metal-to-metal contact with male thread
  • Either side can be wrenched into place
  • A Grade 8 nut is crimped or pinched in the center
  • Available in lefty threads
  • Sizes range from 1/4 to 1”
  • Meets IFI 100/107 standards
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