Metallics JSFN832 Nuts 8-32 Se...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.13
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Metallics JSFN832 Nuts 8-32 Serr Flange Locknut St-zn (Jar 100)

Metallics JSFN832 Nuts 8-32 Serr Flange Locknut St-zn (Jar 100)

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Model: JSFN832
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$50.13
$0.13
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Nuts 8-32 Serr Flange Locknut St-zn (Jar 100)

  • Additional Notes

    • Other sizes and quantities available by request

  • Features

    • Hex nut with an enlarged circular base flaring out from the bottom of the nut. The bearing surface of the flange has serrations which displace material on the mating surface when the nut is wrenched into place, forming a connection which resists loosening.
    • Requires a greater amount of torque to loosen than to tighten the nut. Will span oversized or poorly aligned holes. Flange provides a more uniform bearing-stress to clamp-force ratio than other low carbon lock nuts. Does not gall screw threads.

Manufacturer Resources

Product Specs

Arra Compliant:
N
Buy American Compliant:
No
Dimensional Standard:
ASME B18.16.4-2008
Division:
Electrical H1
Fastener Head Width:
0.334 - 0.344 in.
Fastener Height:
0.187 - 0.203
Fastener Width:
0.981 - 0.397
Field Application:
High Vibration Area, Electrical, Plumbing, Heating and Air Conditioning Industries
Hardness:
Rockwell HR15N 78-90
Language Code:
EN
Neurspe:
https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Serr_Flange_Lck_Nut_St-Zn_18-8_SS.pdf
Order Minimum Imperial:
100
Order Minimum Uom Imperial:
JR
Pack Type:
Jar
Panel Thickness:
0.02 IN
Product Group:
Fasteners
Product Height:
2.15 in
Product Length:
3 in
Product Weight:
0.6 lbs
Product Width:
3 in
Sub Division:
Electrical-E H2
Thread Per Inch:
32
Washer Od:
0.452 - 0.469 in.
Wrenching Height:
0.13
Department:
Electrical
Product Subgroup:
Nuts
Product Type:
Hexagonal Serrated Flange Lock Nut
Type2:
Hexagonal Serrated Flange Lock Nut
Series:
JSFN
Product Finish:
Zinc
Product Details:
Hexagonal Serrated Flange Lock Nut
Product Material:
Steel

Metallics JSFN832 – Frequently Asked Questions

1) Will the Metallics JSFN832 locknut thread onto an 8-32 machine screw?
Yes. The JSFN832 is an 8-32 nut, 32 threads per inch, so it mates with any standard #8-32 machine screw or bolt. It is steel with a zinc finish.
2) Do I need a separate washer with a serrated flange locknut?
No. The flange on the JSFN832 acts as the bearing surface, with a washer OD of 0.452 to 0.469 in. That spreads the clamp load and will span oversized or poorly aligned holes, so a flat washer is redundant in most electrical and mechanical mounting work.
3) Will a serrated flange locknut stay tight on equipment that vibrates?
That is what it is built for. The serrations on the flange bite into the mating surface as the nut is torqued, so it takes more torque to back the nut off than it did to drive it on. Metallics lists the JSFN832 for high vibration areas and for electrical, plumbing, and HVAC work.
4) Can I use the JSFN832 on a federally funded or Buy American job?
No. The JSFN832 is not Buy American compliant and is not ARRA compliant, with multiple countries of origin. For a project with domestic sourcing requirements you will need a domestically produced 8-32 flange nut instead.
5) Is a serrated flange nut a good choice on a painted or finished panel?
Think twice. The serrations work by displacing material on the surface they clamp against, which will score paint, powder coat, or anodizing and break any protective film. On finished or soft surfaces use a nylon insert or non-serrated flange nut instead. On bare or galvanized steel the marking is not an issue.
6) Will a serrated flange locknut chew up the screw threads like a jam nut can?
No. The locking action on the JSFN832 is at the flange face, not in the threads, so it does not gall screw threads. The threads stay clean, which matters if you are backing hardware off and reusing the screw.
7) What dimensional standard does the Metallics JSFN832 hex flange nut meet?
It is built to ASME B18.16.4-2008, the standard for prevailing-torque metric and inch lock nuts, so dimensions interchange with other nuts made to that spec. Hardness is Rockwell HR15N 78-90.
8) How many nuts come in the Metallics JSFN832 and how are they packaged?
They ship 100 to a jar, which is the order minimum, at 0.6 lbs for the jar. The jar packaging keeps small 8-32 hardware together on a service truck rather than loose in a bin.
How fast can I get the Metallics JSFN832 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Metallics JSFN832 come with a warranty?
Absolutely. The Metallics JSFN832 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Metallics JSFN832?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Metallics JSFN832 from ZenSupply?
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