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Nuts 3/8-16 G8 Hx Nut St-zn (Jar 100)
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Dimensional Standard:
- ANSI/ASME B182.2
- Division:
- Electrical H1
- Fastener Head Height:
- 21/64 in.
- Fastener Head Width:
- 0.551 - 0.562 in.
- Fastener Height:
- 0.320 - 0.337
- Fastener Width:
- 0.628 - 0.650
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Grade:
- 8
- Hardness:
- Rockwell C24-32
- Language Code:
- EN
- Material Standard:
- AISI 1021 - 1045
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Gr_5_and_8_Hardened_Steel_Hex_Nut.pdf
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- JR
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 2.7 in
- Product Length:
- 3 in
- Product Weight:
- 1.6 lbs
- Product Width:
- 3 in
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 16
- Department:
- Electrical
- Product Subgroup:
- Nuts
- Product Type:
- Hexagonal Nut
- Type2:
- Hexagonal Nut
- Series:
- JG8N
- Product Finish:
- Zinc
- Product Details:
- Hexagonal Nut
- Product Material:
- Hardened Steel
Metallics JG8N165 – Frequently Asked Questions
1) What thread size and pitch is the Metallics JG8N165 hex nut?
It's a 3/8-16 nut: 3/8 inch nominal diameter with 16 threads per inch, which is the standard UNC coarse thread for 3/8 inch rod and bolts. So it runs onto 3/8-16 threaded rod, hex bolts, and all-thread used for hanging electrical and mechanical work. If your rod is 3/8-24 fine thread, this is not the nut.
2) Is a Grade 8 nut strong enough to pair with Grade 8 bolts?
Yes. The JG8N165 is a Grade 8 hardened steel nut at Rockwell C24-32 hardness, made from AISI 1021-1045 steel, so it's matched to Grade 8 bolt and rod strength. Pairing a lower grade nut with a Grade 8 bolt is where joints strip, which is the reason to spec this one on high-load hangers and structural connections.
3) Are these Metallics nuts Buy American or ARRA compliant for a government job?
No. The JG8N165 is not Buy American compliant and is not ARRA compliant; country of origin is listed as multiple. If your project carries a domestic-content requirement, this part won't satisfy it.
4) What wrench or socket size do I need for a 3/8-16 Grade 8 hex nut?
Across the flats the nut measures 0.551 to 0.562 in., so a 9/16 inch wrench or socket fits it. Thickness runs 0.320 to 0.337 in. Worth knowing in tight strut channel or on a trapeze hanger where socket clearance matters.
5) Does the zinc finish on these nuts hold up outdoors or in damp areas?
Zinc plating is the finish here, which is a general-purpose corrosion coating suited to dry interior and protected locations: panel work, conduit hangers, strut, equipment mounting. For sustained wet exposure, direct weather, or wash-down areas, step up to hot-dip galvanized or stainless rather than zinc-plated steel.
6) How many nuts come in a jar and can I buy fewer than 100?
The JG8N165 ships as a jar of 100 nuts, and the jar is the order minimum, so 100 pieces is the smallest quantity. Jar weight is 1.6 lbs. Other sizes and quantities can be arranged by request.
7) Do these hex nuts meet a dimensional standard I can put on a submittal?
Dimensions conform to ANSI/ASME B182.2, with material to AISI 1021-1045 and Grade 8 strength. That gives a spec writer or inspector the standard, grade, and material callout for a submittal on electrical, plumbing, or HVAC work.
8) Is this a plain hex nut or a locking nut?
It's a plain hardened steel hex nut, no nylon insert and no distorted locking thread. Where vibration is a concern (equipment bases, fan and motor mounts), you'll want a lock washer, a jam nut, or a separate nylon-insert lock nut in addition to this one.
How fast can I get the Metallics JG8N165 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 JG8N165 come with a warranty?
Absolutely. The Metallics JG8N165 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 JG8N165?
You can call, text, or email our expert support team for fast answers. We’re here to help with
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installation tips, and troubleshooting. Contact Us
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