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HILLMAN®

C-Pak-Nylon Stop Nuts United States Standard Stainless Steel 5/16-Inch -18, Box Of 50

Mfg.#
829722
Sku#
4666509
  • HIGH-QUALITY HEX NUT DESIGN: Used for fastening to a bolt when mechanically joining materials
  • CONSTRUCTED WITH A NYLON INSERT: The insert offers additional security to keep nut in place
  • PART OF A COMPLETE FASTENING SOLUTION: Use with bolts or washers of the same thread size and finish
  • 5/16"-18 USS COARSE THREAD: Matches bolts or rods of a 5/16"-18 coarse thread size
  • BEST-IN-CLASS CORROSION PROTECTION: #18-8 stainless steel finish combines a polished look with superior protection against rust and corrosion

* Estimated stock levels as of Thu, Apr 30, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.

Description

Stainless Steel Nylon Insert Stop Nuts are ideal for securely fastening a bolt when connecting materials. Use these hexagonal nuts with bolts and washers of the same material, finish, and grade. The nylon ring inside the nut creates rotational resistance when displaced by a mating male threaded fastener, thus preventing loosening.

Specifications

General

Finish Stainless Steel
Pack Qty 50
Type Stop Nut

Manufacturing Details
The following information is subject to change without notice

Country of Origin TW
Prop 65 Warning Warning WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Shop USA No

Dimensions

Size 5/16 in - 18

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