Silicon Bronze Hex Jam Nut
Bronze Jam Nuts
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Silicon Bronze Hex Jam Nuts

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Our hex jam nuts are a true, solid 651 Silicon Bronze Alloy and comparable to our regular hex finish nuts but thinner. Two jam nuts are generally used at a time, and tightened against one another for a locking effect. Jam nuts are often also referred to as:

  • Check Nuts
  • Thin Hex Nuts
  • Thin Nuts

Need an anti-seize and thread protectant for these nuts? Don't forget to add on some Fair Wind Screw Lube.

Nominal Size Width Across The Flats Thickness
1/4" 7/16" 5/32"
5/16" 1/2" 3/16"
3/8" 9/16" 7/32"
1/2" 3/4" 5/16"
5/8" 1 5/16" 3/8"

Customer Reviews

Based on 3 reviews
Edward Hendricks
Amazing to deal with

You were so amazing to speak with snd so very understanding h of our unique situation having to be shipped so far away to such a remote place. Thank you. We will highly recommend you to all our boating friends.
Edward and Jody Hendricks from Ketchikan Alaska.

George Henschel

Excellent services

Bronze Fasteners

I tried in all the marine supply stores and hardware stores in Annapolis to find bronze bolts, washers, and nuts to replace a broken bolt on my stuffing box. I had no luck at all anywhere, even in this boating community. I found Fair Winds Fasteners online and had my stuff in 4 days. A good price and reasonable shipping.