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Nuts 3/8-24 Hx Nut FT St-zn (Jar 100)
Additional Notes
- Other sizes and quantities available by request
Features
- The most versatile and widely used nut design. Grade-2 nuts are for use with any low carbon bolt or screw that is not heat treated, with a specified minimum tensile strength of 74,000 psi or less
- Made to American Standard Dimensions
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Division:
- Electrical H1
- Fastener Head Width:
- 0.551 - 0.562 in.
- Fastener Height:
- 0.320 - 0.337
- Fastener Width:
- 0.628 - 0.650
- Field Application:
- Width is Wrench Size
- Grade:
- 2
- Hardness:
- Rockwell B68-C32
- Language Code:
- EN
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Nut_Domestic_Gr_2_Gr_5_Gr_8_Gal_18-8_SS_316_SS.pdf
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 2.7 in
- Product Length:
- 3 in
- Product Weight:
- 1.55 lbs
- Product Width:
- 3 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 24
- Thread Type:
- UNF
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Hexagonal Nut
- Type2:
- Hexagonal Nut
- Series:
- JNF
- Product Finish:
- Zinc
- Product Details:
- Hexagonal Nut
- Product Material:
- Steel
Metallics JNF165 – Frequently Asked Questions
1) What thread does the Metallics JNF165 hex nut take, and will it fit a standard 3/8-16 coarse bolt?
No, it will not. The JNF165 is a 3/8-24 UNF fine thread nut, 24 threads per inch. Coarse 3/8 bolts in common use are 16 threads per inch, so they will not thread into this nut. Match it to a 3/8-24 fine thread bolt, stud, or rod only.
2) What bolt strength are Grade 2 hex nuts good for?
Grade 2 nuts like the JNF165 pair with any low carbon bolt or screw that is not heat treated, with a specified minimum tensile strength of 74,000 psi or less. If you are torquing into a Grade 5 or Grade 8 bolt, step up to a matching higher grade nut instead, otherwise the nut becomes the weak point in the joint.
3) Are these zinc plated nuts OK outdoors or in a damp mechanical room?
The JNF165 is zinc plated steel, which handles indoor service, dry electrical rooms, strut and conduit hanging, and panel work well. Zinc plating is a light sacrificial coating, not a marine finish, so for sustained wet exposure, washdown areas, or coastal work, go to a hot dip galvanized or 18-8 / 316 stainless hex nut in the same 3/8-24 size.
4) Do these hex nuts qualify for a Buy American or ARRA funded job?
Both the Buy American and ARRA compliance flags on the JNF165 read compliant. Country of origin is listed as multiple, so if your federal or state specification requires a single documented origin on the submittal, call that out on the purchase order.
5) How many nuts come in a jar, and is there a minimum order?
These ship 100 count in a jar, and 100 count is the order minimum. That is a single jar per line, which suits MRO shelf stock and service truck restocking. Metallics notes other sizes and quantities are available by request.
6) Is this a full thread hex nut made to American standard dimensions?
Yes. The JNF165 is a full thread hexagonal nut built to American Standard Dimensions, with a head width of 0.551 to 0.562 inch, so it drops into standard hex nut prep and standard socket sets without surprises.
7) How hard are these nuts, and will they gall or strip on repeated removal?
Hardness runs Rockwell B68 to C32, which is the normal range for a Grade 2 low carbon steel nut. That is soft enough to tolerate reuse on light duty assemblies but it also means over-torquing on a hardened bolt will deform the threads in the nut first. Keep torque in line with the 74,000 psi bolt class it is intended for.
8) How much does a jar of 100 of these 3/8-24 nuts weigh for shipping?
A jar of 100 comes in at 1.55 lbs, with jar dimensions of 3 x 2.7 x 3 inches. Light enough to stock several sizes in one bin drawer on a service van.
How fast can I get the Metallics JNF165 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 JNF165 come with a warranty?
Absolutely. The Metallics JNF165 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 JNF165?
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 JNF165 from ZenSupply?
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and
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every order.
Our team is always ready to help you choose the right product for your project.