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Bolts 10-32 X 1 Hx Sl Ms St-zn (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
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Hex_Head_Slotted_Machine_Screw_St-Zn.pdf
- 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:
- 426 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 Finish:
- Zinc
- Product Details:
- Hexagonal Bolt
- Product Material:
- Steel
Metallics JHHMS98 – Frequently Asked Questions
1) Will the Metallics JHHMS98 10-32 machine screw thread into standard electrical box and device mounting holes?
Yes. The JHHMS98 is a 10-32 thread, 32 threads per inch, cut to the ANSI/ASME B1.1 thread standard, which is the thread used for device mounting and grounding holes in standard steel outlet and switch boxes. At 1 inch long it gives enough reach for mounting through plaster rings, mud rings, or stacked device yokes.
2) Is this a coarse or fine thread screw, and will it accept a standard 10-32 nut?
Fine thread. The JHHMS98 is UNF with 32 threads per inch, so it mates with 10-32 UNF nuts and tapped 10-32 holes only. It will not thread into a 10-24 coarse tapped hole, and a 10-24 nut will not run on it.
3) Can I drive the Metallics JHHMS98 with a nut driver, or does it need a screwdriver?
Either. It has a hex head with a slot in it, so a 5/16 nut driver or a flat blade both work. Head width measures 0.305 to 0.312 inch, which is why a 5/16 driver seats on it. The slot is handy in tight box work where you cannot get a socket square on the head.
4) How many screws come in a jar of Metallics JHHMS98, and is there a minimum order?
They ship in a jar of 100, and 100 count is the order minimum. The filled jar weighs 426 g. Metallics notes other sizes and quantities can be had by request.
5) Are these zinc plated steel screws OK for outdoor or damp locations?
The JHHMS98 is steel with a zinc finish, which is a general indoor and dry-location plating. For wet locations, outdoor enclosures, or corrosive environments, specify a stainless machine screw instead. Zinc plated steel is the normal choice for interior box and panel work.
6) Does the Metallics JHHMS98 meet Buy American requirements on a federal job?
The JHHMS98 is flagged compliant for both ARRA and Buy American in Metallics' product data, while country of origin is listed as China. If your specification requires domestic melt and manufacture rather than the ARRA/Buy American compliance flag, verify against the project's own clause language before submitting it.
7) Will a standard #10 washer fit under the head of this hex slotted machine screw?
Yes. The washer outside diameter called out for the JHHMS98 is 0.384 to 0.414 inch, and the head bearing surface measures 0.34 inch across the fastener width, so a #10 flat or lock washer seats properly under the hex head.
8) What dimensional standard does the Metallics JHHMS Series hex slotted machine screw follow?
Head and body dimensions follow ASME B18.6.3-2002, the standard for inch machine screws, with threads to ANSI/ASME B1.1. That matters on spec work where a submittal has to name the governing standard rather than just the size.
9) How tall is the head on this 10-32 x 1 inch hex machine screw? I need low profile under a device plate.
Head height runs 0.105 to 0.120 inch on the JHHMS98, with the hex measuring 0.305 to 0.312 inch across. That is a shallow indented hex washer style head, so it sits close under a cover or device plate rather than standing proud like a round or pan head.
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Does the Metallics JHHMS98 come with a warranty?
Absolutely. The Metallics JHHMS98 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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