Heavy Nylon Lock Nuts Zinc Plated Grade A Steel

Zinc Plated Nylon Insert Heavy Lock Nuts - Grade 8

Heavy Lock Nuts with a Nylon Insert in Zinc Plated Steel


  • Hexagonal shape
  • Nylon material creates pressure against the fastener
  • Forces the bottom threads of the fastener against the top threads of the bolt
  • Heavy Nut with Nylon Insert
  • UNC Coarse thread sizes
  • Locks the nut into place so it will not vibrate loose
  • Retain locking ability up to 250 °F (121 °C)
  • Case Hardened CR+3 Zinc Plated Steel
  • REACH and RoHS Compliant

Nut Size Width Across Flats Thickness
1/4-20 Max 0.506-Min 0.489 Max 0.390-Min 0.360
5/16-18 Max 0.566-Min 0.551 Max 0.453-Min 0.423
3/8-16 Max 0.691-Min 0.675 Max 0.562-Min 0.532
7/16-14 Max 0.754-Min 0.736 Max 0.609-Min 0.579
1/2-13 Max 0.879-Min 0.861 Max 0.718-Min 0.688
9/16-12 Max 0.942-Min 0.922 Max 0.812-Min 0.782
5/8-11 Max 1.067-Min 1.045 Max 0.874-Min 0.844
3/4-10 Max 1.255-Min 1.231 Max 1.015-Min 0.985
7/8-9 Max 1.444-Min 1.417 Max 1.140-Min 1.110
1-8 Max 1.632-Min 1.602 Max 1.312-Min 1.250
1-1/8-7 Max 1.820-Min 1.788 Max 1.469-Min 1.407
1-1/4-7 Max 2.008-Min 1.973 Max 1.672-Min 1.610
1-3/8-6 Max 2.197-Min 2.159 Max 1.828-Min 1.766
1-1/2-6 Max 2.384-Min 2.344 Max 1.953-Min 1.891
1-5/8-5.5 Max 2.572-Min 2.530 Max 2.172-Min 2.110
1-3/4-5 Max 2.762-Min 2.715 Max 2.376-Min 2.250
2-4.5 Max 3.137-Min 3.086 Max 2.469-Min 2.343
2-1/4-4.5 Max 3.514-Min 3.457 Max 2.876-Min 2.750
2-1/2-4 Max 4.015-Min 3.875 Max 3.204-Min 3.078
2-3/4-4 Max 4.015-Min 3.875 Max 3.204-Min 3.078
3-4 Max 4.640-Min 4.500 Max 3.704-Min 3.578
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Product Specifications
Color
Silver
Finish
Case Hardened (CR+3) Zinc Plated
Material
Grade A Steel
Product Type
Nylon Insert Heavy Lock Nut
Standards Met
REACH, RoHS
Thread Direction
Right Hand
Thread Standard
UNC
Thread Type
Coarse
Tolerance (IFI)
Actual measurements may vary slightly +/- depending on production run within IFI Tolerances
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Size:
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Size
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