Specs for stainless steel screws with nylon locking elements
Specs for stainless steel screws with nylon locking elements
(OP)
Does anyone out there have military or aerospace specs for stainless steel screws with nylon locking elements (plugs, patches, pellets, etc.)? These would be specs providing part numbers to buy them to.
TIA :)
TIA :)
Tunalover





RE: Specs for stainless steel screws with nylon locking elements
RE: Specs for stainless steel screws with nylon locking elements
You're preaching to the choir about clinch nuts. I asked about screws, not nuts. Also, it would be news to me if clinch nuts came with nylon locking elements! Could you provide a PEM part number, for instance?
Tunalover
RE: Specs for stainless steel screws with nylon locking elements
No, I apologize – I saw StickScrew® on their homepage and didn't investigate.
Can you use self-locking hex. socket screws, 18-8 SS with nylon patch
(-70° to +250° F), per ANSI/ASME B18.8?
Thread sizes 4-40 to ½-13, catalog page 2924 http://www.mcmaster.com/
RE: Specs for stainless steel screws with nylon locking elements
Just talking with my nut buddy and his comment was if you don't need a Mil-Spec fastener just ask for a Nyloc/Nylock/Nylok from an American manufacturer. This will insure a quality screw and save considerable coins. He has been seeing some poor quality imports in the Nyloc/Nylock/Nylok type screws.
Here is one he has been getting calls for. Look at the product specifications for all the standards
http://www.nylok.com/products_nylokpellet.htm
RE: Specs for stainless steel screws with nylon locking elements
Tunalover
RE: Specs for stainless steel screws with nylon locking elements
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Nylon patch and pellet inserts for bolts and screw are governed by MIL-DTL-18240; which you may obtain here:
http://www.longlok.com/pdf/milspec_18240f.pdf
RE: Specs for stainless steel screws with nylon locking elements
Tunalover
RE: Specs for stainless steel screws with nylon locking elements
http://www.longlok.com/pdf/handbook.pdf
RE: Specs for stainless steel screws with nylon locking elements
What does that provide?
Tunalover
RE: Specs for stainless steel screws with nylon locking elements
It gives the means that the company uses to number their screws.
I don’t believe there are any AN, MS or NAS screws with the inserts installed. This company takes screws and adds the inserts. I think it would be cheaper to use locking nuts or anchor nuts than those inserts.
RE: Specs for stainless steel screws with nylon locking elements
The Long Lok handbook has a bunch of good information on prevailing torque fasteners. It is well worth the free download.
I also, I think, points you to the answer to your question, which is:
NAS 1283, and MS 15981
RE: Specs for stainless steel screws with nylon locking elements
Thanks for the links. MS15981 tells how to apply the locking element but it doesn't appear to put forth mil-standard part numbers. NAS1283 I could not find using the DLA's website for free specs (ASSIST Quicksearch).
Tunalover
RE: Specs for stainless steel screws with nylon locking elements
RE: Specs for stainless steel screws with nylon locking elements
RE: Specs for stainless steel screws with nylon locking elements
Thanks guys! You're a big help. I'll get these specs.
Tunalover