[50 PKG] Hex Lock Nuts Nylon Insert Grade C Medium Carbon Phosphate Oil 5/8-18
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[50 PKG] Hex Lock Nuts Nylon Insert Grade C Medium Carbon Phosphate Oil 5/8-18

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[50 PKG] Hex Lock Nuts Nylon Insert Grade C Medium Carbon Phosphate Oil 5/8-18

Mutual ScrewSKU: 63NSCBB
Price:
$60.73per 50( $1.21 each)
Pieces 50
Measurement type Inch
Thread size 5/8-18
Material Steel
Finish Phosphate Oil
Head style Hex
Weight 5.0 lb

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to https://www.P65Warnings.ca.gov.

Description

Hex Lock Nuts Nylon Insert Grade C Medium Carbon Phosphate Oil 5/8-18 delivers reliable locking action with a nylon insert to resist vibration and prevent loosening in demanding assemblies. Made from Grade C medium carbon steel and finished with a phosphate oil treatment, these nuts offer strength, durability, and dependable performance across engineering and industrial applications.

Key benefits:

  • Nylon insert locking mechanism provides consistent torque resistance and prevents loosening under dynamic loads.
  • Grade C medium carbon steel combines toughness and strength for durable, reusable fasteners.
  • Phosphate oil finish offers corrosion resistance and lubricity in challenging environments, reducing galling during installation.
  • Thread size 5/8-18 UNC compatibility, designed for standard 5/8-18 fastener systems.
  • Industrial-grade reliability ideal for automotive, machinery, and equipment assemblies where vibration is a concern.

Applications:

  • Automotive and vehicle maintenance
  • Machinery, equipment, and industrial fixtures
  • General engineering and construction where secure fastening is required

Why choose this lock nut?

  • Resists loosening under vibration
  • Excellent durability with a robust locking nylon insert
  • Corrosion resistance from phosphate oil finish
  • Easy to install with standard tools

Can We Help?

If you’re not sure that this product is right for you, give us a call!
800-222-0324

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