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Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Dimensional Standard:
- ASME B18.6.3-2002
- Division:
- Electrical H1
- Drive Type:
- Slotted
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 0.244 - 0.250 in.
- Fastener Height:
- 0.080 - 0.093
- Fastener Length:
- 2-Jan
- Fastener Width:
- 0.272
- Language Code:
- EN
- Order Minimum Imperial:
- 100
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 2.15 in
- Product Length:
- 3 in
- Product Weight:
- 132 g
- Product Width:
- 76.2 MM
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 32
- Thread Pitch:
- 0.138
- Thread Standard:
- ANSI/ASME B1.1
- Thread Type:
- UNC
- Washer Od:
- 0.302 - 0.328 in.
- Department:
- Electrical
- Product Subgroup:
- Bolts
- Product Type:
- Hexagonal Bolt
- Type2:
- Hexagonal Bolt
- Series:
- JHHMS
- Product Finish:
- Zinc
- Product Details:
- Hexagonal Bolt
- Product Material:
- Steel
Metallics JHHMS80 – Frequently Asked Questions
1) What thread size are the Metallics JHHMS80 hex machine screws, and will they thread into a standard 6-32 tapped box or device?
They are 6-32, 32 threads per inch, UNC thread form to ANSI/ASME B1.1. That is the same thread used on tapped holes in outlet boxes, device plates, and panel hardware, so a 6-32 tapped hole takes them directly. Length is 1/2 inch.
2) Is the JHHMS80 a hex head or a slotted screw?
Both. The head is hex, and it is also slotted, so you can drive it with a 1/4 inch nut driver or a flat blade screwdriver. Head width measures 0.244 to 0.250 inch across, head height 0.080 to 0.093 inch.
3) Do these screws meet Buy American and ARRA requirements for a federally funded job?
The JHHMS80 6-32 hex machine screws are flagged as both Buy American compliant and ARRA compliant in the product record. Country of origin is China. If your specification requires domestic melt and manufacture rather than the Buy American designation, confirm which standard the spec cites.
4) How many 6-32 x 1/2 Metallics hex washer screws come in a jar, and is that the minimum order?
100 pieces in a jar, and 100 count is the order minimum, so one jar is the smallest buy. The jar weighs 132 g. Other sizes and quantities can be requested.
5) Are these Metallics machine screws OK for damp or outdoor electrical work?
They are steel with a zinc finish. Zinc plating handles normal indoor and protected locations fine, but it is not a stainless screw. For wet, coastal, or corrosive environments, specify a stainless 6-32 x 1/2 machine screw instead.
6) Do the JHHMS80 screws have an integral washer, and how much bearing surface do they give?
Yes, there's a washer under the hex head with an outside diameter of 0.302 to 0.328 inch. That spreads the load over a wider area than a plain hex head, which is what you want on sheet metal and thin box walls where a bare head can pull through an oversized hole.
7) Will a 1/2 inch long 6-32 screw be long enough for mounting a device or plate?
At 1/2 inch of length under the head, these suit thin stack-ups: a device yoke to a box ear, a plate or clip to sheet metal, or a ground screw hole. Thicker assemblies or deep box extensions need a longer 6-32. Metallics offers the JHHMS series in other lengths by request.
8) What dimensional standard do these Metallics hex machine screws conform to?
They are made to ASME B18.6.3-2002, the standard covering machine screws and tapping screw head and body dimensions, with threads to ANSI/ASME B1.1. If a submittal asks for a dimensional standard on the fastener line, those are the two to cite.
How fast can I get the Metallics JHHMS80 delivered?
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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 JHHMS80 come with a warranty?
Absolutely. The Metallics JHHMS80 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 JHHMS80?
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