1/4-20 Nylon Insert Locknut Zinc Plated - FMW Fasteners

1/4-20 Nylon Insert Locknut Zinc Plated


Quantity Unit Price
1 to 999 $0.07
1,000+ $0.03
Regular price$0.07 USD

  • $100 orders ship FREE
  • In stock
  • Inventory on the way

1/4-20 Nylon Insert Locknut Zinc Plated . Nylon insert locknuts are hex nuts with a nylon-filled collar. When a screw reaches the collar, the threads and nylon form a tight, frictional fit restricting movement of the screw when it is subjected to vibration. Designed to be used with like-material machine screws and bolts, nylon insert locknuts can be reused more times than a two-way reversible nut, however, nylon will begin to deteriorate at temperatures of 150°-350°F so they are not recommended for high temperature service. Typical hardness will reach a maximum of Rockwell C28. Nuts are manufactured to meet a proof load of 90,000 psi minimum.

Most orders placed with us ship in 1-3 business days. More details here on how you can check on the status of your order.

All of our item images are accurate representative images of the product category, however, due to the limitless variations in thread patterns, finishes, and other variables that exist with fasteners, bits and cutting tools, they are representative images only.



They were swift and delivered fast! They had everything I needed.

Eddie Wilcox
Parma, OH


Exactly what we needed and apparently FMW is not only the single source, but the best source. Easy ordering-fast shipping and great communications.

John B.
Salem, OR

Exactly what I needed and received in a timely manner. Thank you!

Mary Marucci
Philadelphia, PA

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