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Nuts 3/8-24 Hx Nut SS (Jar 50)
Additional Notes
- Other sizes and quantities available by request
Features
- Six-sided internally threaded fastener whose thickness is 0.875 D is the nominal nut size and 1.5 D is their width across the flats, made from austenitic alloys.
- Designed for use with stainless steel bolts and screws with a specified minimum tensile strength equal to or less than the specified proof stress of the mating nut. Both type of stainless are corrosion resistant with 316 stainless having greater such resistance as well as superior strength at raised temperatures.
Manufacturer Resources
Product Specs
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Country Of Origin:
- MUL
- Division:
- Electrical H1
- Fastener Head Height:
- Jul-32 in.
- Fastener Head Width:
- 0.551 - 0.562 in.
- Fastener Height:
- 0.320 - 0.337
- Fastener Width:
- 0.628 - 0.650
- Hardness:
- Rockwell B95-C32
- Language Code:
- EN
- Order Minimum Imperial:
- 50
- Order Minimum Uom Imperial:
- EA
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Remarks:
- The catalog UPC differ from the tarnsaction daat spreadsheet UPC
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 24
- Thread Standard:
- ANSI/ASME B18.2.2
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Hexagonal Nut
- Type2:
- Hexagonal Nut
- Series:
- JSN
- Product Details:
- Hexagonal Nut
- Product Material:
- 18-8 Stainless Steel
Metallics JSN21L – Frequently Asked Questions
1) Is the Metallics JSN21L a fine thread or coarse thread 3/8 nut?
Fine thread. The JSN21L is a 3/8-24 hex nut, 24 threads per inch, which is UNF rather than the coarse 3/8-16 UNC. It will not thread onto a 3/8-16 bolt, so match it to a fine-thread stud or screw.
2) Which stainless grade is the JSN21L nut, and will it hold up outdoors or in a wash-down area?
The JSN21L is 18-8 stainless steel, the austenitic 304-family grade used for general corrosion resistance on exterior and damp interior electrical work. For saltwater, coastal, or chemical wash-down exposure, 316 stainless has greater corrosion resistance and better strength at elevated temperature, so specify 316 hardware where that matters.
3) Will the JSN21L satisfy a Buy American or ARRA requirement on a public job?
No. The JSN21L is not Buy American compliant and is not ARRA compliant; country of origin is listed as multiple. If your government, school, or transit contract carries a domestic sourcing clause, this nut will not clear it.
4) Does the Metallics JSN21L meet a dimensional standard I can put on a submittal?
Yes. The JSN21L 3/8-24 hex nut is made to ANSI/ASME B18.2.2, the dimensional standard for hex nuts, so thickness and across-flats dimensions are to spec. Hardness is Rockwell B95-C32.
5) What bolts should I pair these stainless hex nuts with?
Use stainless steel bolts or screws whose specified minimum tensile strength is equal to or less than the proof stress of the nut. Matching stainless to stainless also avoids the galvanic pairing you get mixing a stainless nut onto a plated carbon steel bolt in a wet location.
6) How many nuts come in a jar of Metallics JSN21L, and can I order less?
They ship in a jar of 50 pieces, and 50 each is the order minimum, so the jar is the smallest unit. Other sizes and quantities are available by request.
7) Is this a plain hex nut or a locking nut?
It is a plain six-sided internally threaded hex nut, no nylon insert and no prevailing-torque feature. If the connection sees vibration, add a lock washer or use a nylon-insert lock nut in 3/8-24 instead.
How fast can I get the Metallics JSN21L 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 JSN21L come with a warranty?
Absolutely. The Metallics JSN21L 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 JSN21L?
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selection,
installation tips, and troubleshooting. Contact Us
Why buy the Metallics JSN21L from ZenSupply?
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