You may also like
Bolts 10-32 X 1 Hx 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
- 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 Finish:
- Zinc
- Product Details:
- Hexagonal Bolt
- Product Material:
- Steel
Metallics JHHMS34 – Frequently Asked Questions
1) Will a Metallics JHHMS34 10-32 machine screw thread into a standard electrical box or device ground hole?
The JHHMS34 is a 10-32 x 1 inch hex head machine screw, and 10-32 is the thread used for ground screws and device mounting in steel outlet and switch boxes. Thread count is 32 per inch to ANSI/ASME B1.1, so it mates with any tapped 10-32 hole. At 1 inch long it is a longer screw than typical factory ground screws, so it suits stacking a bonding jumper, a mud ring, or a bracket where you need extra grip length.
2) Do Metallics JHHMS34 machine screws meet Buy American and ARRA requirements for a public project?
The JHHMS34 10-32 hex machine screw is flagged compliant for both Buy American and ARRA in the manufacturer's data. Country of origin is listed as China, so if your specification requires domestic melt and manufacture rather than the ARRA/Buy American compliance flag, confirm which standard your project is written to before you submit.
3) Is the JHHMS34 a coarse or fine thread, and will it fit a 10-24 tapped hole?
No, it will not. The JHHMS34 is 10-32 UNF, a fine thread at 32 threads per inch with a 0.19 pitch value. A 10-24 tapped hole is coarse thread and the two are not interchangeable. If your box or bracket is tapped 10-24, order a 10-24 screw instead.
4) Can I drive these 10-32 hex head screws with a screwdriver, or do I need a nut driver?
Either. The head is hex with a slot cut in it, so a 5/16 nut driver fits the head (head width measures 0.305 to 0.312 inch) or a flat blade goes in the slot. That matters in tight box work where you cannot get a driver square on the fastener.
5) Are these zinc plated steel screws OK for outdoor or damp locations?
Material is steel with a zinc finish. Zinc plating handles indoor and normally dry conditions fine, and gives light corrosion protection in damp interior work. For wet locations, direct weather exposure, or coastal installs, specify stainless rather than zinc plated steel.
6) How many 10-32 x 1 screws come in a jar of Metallics JHHMS34, and is that the minimum order?
They ship 100 to a jar, and 100 count is the order minimum. That is the stocking quantity for a van or shop bin rather than a loose handful, so plan on one jar per 100 fasteners needed.
7) What size washer do I need for these 10-32 hex machine screws?
Matching washer outside diameter is 0.384 to 0.414 inch, which is the standard #10 washer size. Bearing width across the fastener is 0.34 inch, so a #10 flat or star washer seats correctly under the hex head.
8) What dimensional standard are these Metallics hex machine screws built to?
Head geometry follows ASME B18.6.3-2002, the standard for machine screws, with threads to ANSI/ASME B1.1. Head height falls between 0.105 and 0.120 inch, so the head sits low enough to clear a device yoke or cover plate in most box work.
9) I need 10-32 machine screws in a different length than 1 inch. Can I get them?
The JHHMS34 is the 1 inch length in the Metallics JHHMS series of hex head machine screws. Other lengths and pack quantities in the same series are available by request, so specify the length you need when you order.
10) How much does a jar of 100 Metallics 10-32 x 1 machine screws weigh?
A jar of 100 runs 395 g. Jar dimensions are listed at 3 in length, 2.15 in height and 76.2 mm width, which matters if you are loading a parts drawer or van bin to a fixed slot size.
How fast can I get the Metallics JHHMS34 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 JHHMS34 come with a warranty?
Absolutely. The Metallics JHHMS34 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 JHHMS34?
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 JHHMS34 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.