[25 PKG] Hex Lock Nuts NU Nylon Inserts 18/8 Stainless 5/16-18
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[25 PKG] Hex Lock Nuts NU Nylon Inserts 18/8 Stainless 5/16-18

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[25 PKG] Hex Lock Nuts NU Nylon Inserts 18/8 Stainless 5/16-18

Mutual ScrewSKU: 31NU188YW
Price:
$97.01per 25( $3.88 each)
Pieces 25
Measurement type Inch
Thread size 5/16-18
Material Steel
Grade 18/8
Finish Stainless Steel
Head style Hex
Weight 1.0 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 NU Nylon Inserts 18/8 Stainless 5/16-18 are engineered to deliver secure, vibration-resistant fastening in a compact hex form. Ideal for mechanical assemblies exposed to moisture and corrosive environments.

These lock nuts feature a molded nylon insert that locks onto the mating bolt, preventing loosening under vibration and thermal cycling. The 18/8 stainless steel construction provides strong corrosion resistance, making them suitable for outdoor, marine, and damp settings.

Key features

  • Material: 18/8 stainless steel for dependable corrosion resistance and long service life.
  • Locking mechanism: Built-in nylon insert provides reliable locking action to resist loosening.
  • Size & thread: 5/16-18 UNC threads for standard hardware compatibility.
  • Head style: Hex head for easy driving with common wrenches.
  • Applications: Ideal for outdoor, marine, automotive, and machinery assemblies where vibration occurs.

Maintenance tip: Inspect the nylon insert for wear after repeated cycles; replace if locking performance diminishes. Store in a cool, dry environment to maximize nylon life.

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

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