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Bolts 10-32 X 1 Hx Ms SS (Jar 100)
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:
- 0.305 - 0.312 in.
- Fastener Height:
- 0.105 - 0.120
- Fastener Length:
- 1
- Fastener Width:
- 0.34
- 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:
- 395 g
- Product Width:
- 76.2 MM
- Sub Division:
- Electrical-E H2
- Thread Per Inch:
- 32
- Thread Pitch:
- 0.19
- Thread Standard:
- ANSI/ASME B1.1
- Thread Type:
- UNF
- Washer Od:
- 0.384 - 0.414 in.
- Department:
- Electrical
- Product Subgroup:
- Bolts
- Product Type:
- Hexagonal Bolt
- Type2:
- Hexagonal Bolt
- Series:
- JHHMS
- Product Details:
- Hexagonal Bolt
- Product Material:
- Stainless Steel
Metallics JHHMS34SS – Frequently Asked Questions
1) Will the Metallics JHHMS34SS machine screws thread into a 10-32 tapped hole in a steel box or panel?
Yes. The JHHMS34SS is a 10-32 machine screw, 32 threads per inch, cut to the ANSI/ASME B1.1 thread standard in the UNF series, so it mates with any standard 10-32 tapped hole or 10-32 nut. Length is 1 inch, which is what decides whether you have enough reach through a box ear, bracket, or panel flange plus the tapped material.
2) Are these stainless so I can use them outdoors or in a damp location?
Material is stainless steel, which is the reason to pick these over plated steel machine screws for wet locations, exterior enclosures, car washes, food plants, and coastal work. Same 10-32 thread as a standard zinc machine screw, so it is a direct swap in the same tapped hole.
3) Is a 10-32 machine screw the right fastener for electrical box and device mounting, or should I use a sheet metal screw?
A 10-32 machine screw like this one is the fastener for threads that already exist: tapped box ears, ground screw holes, strut nuts, device straps, panel standoffs. It has a blunt, uniform machine thread and no point, so it will not form its own thread in bare sheet metal. For unthreaded sheet or for hole sizes you drill yourself, a self-tapping sheet metal screw is the right call. 10-32 at 1 inch with a hex slotted head is the common MRO size for electrical enclosure work.
4) What wrench or driver do I need for these 10-32 hex head machine screws?
The head is hex with a slot across it, so you can run them with a 5/16 inch wrench or nut driver, or back them out with a flat blade screwdriver when there is no room to swing a socket. Head width across flats measures 0.305 to 0.312 inch and head height 0.105 to 0.120 inch, which is why 5/16 is the size that fits.
5) How many screws come in a jar of Metallics JHHMS34SS, and can I buy fewer?
They ship as a jar of 100, and 100 count is the order minimum, so a single jar is the smallest buy. The jar runs 395 g gross. For other lengths or pack counts in the JHHMS series, those are available by request.
6) Do these 10-32 screws meet Buy American requirements for a federal or public job?
The record flags the JHHMS34SS as Buy American compliant and ARRA compliant, with country of origin China. If your specification is a strict domestic-melt-and-manufacture clause rather than a compliance flag, verify against the project's exact wording with your specifier.
7) Does the JHHMS34SS hex machine screw meet a dimensional spec I can submit on a drawing?
Head and body dimensions are built to ASME B18.6.3-2002, the standard for machine screws, and the thread to ANSI/ASME B1.1. Those are the two designations a submittal reviewer looks for on a 10-32 hex head machine screw.
8) Will a hex washer head 10-32 screw clear a slotted mounting hole, or will it pull through?
Bearing surface under the head measures 0.384 to 0.414 inch outside diameter, wider than the 0.305 to 0.312 inch across the flats, so it spreads load over a slot or an oversized hole without a separate washer in most panel work. Overall fastener width is listed at 0.34 inch.
9) What is the thread pitch on these, and will they run with a 10-32 ground screw in a steel box?
Thread pitch is listed at 0.19 and the count is 32 threads per inch in the UNF series, which is the standard 10-32 used for ground screws and device mounting in steel boxes. Because the pitch matches, these interchange with the 10-32 green ground screws already in your boxes, though these are plain stainless rather than green painted.
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Does the Metallics JHHMS34SS come with a warranty?
Absolutely. The Metallics JHHMS34SS is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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