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Bolts 10-32 X 3/4 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:
- 4-Mar
- 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:
- 3402 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 JHHMS48SS – Frequently Asked Questions
1) Will a 10-32 x 3/4 hex head machine screw thread into a standard 10-32 tapped box or enclosure?
Yes. The Metallics JHHMS48SS is a 10-32 machine screw with 32 threads per inch, a UNF thread form cut to ANSI/ASME B1.1, so it mates with any standard 10-32 tapped hole, ground lug, or device box boss. The 3/4 inch length gives you enough reach for stacked lugs or a bonding jumper without bottoming out in a shallow tapped hole.
2) Do these hex machine screws meet a recognized dimensional standard for spec work?
Yes. The JHHMS48SS is made to ASME B18.6.3-2002, the dimensional standard for machine screws, with threads to ANSI/ASME B1.1. If a drawing or a facility spec calls for a B18.6.3 slotted hex head machine screw in 10-32, this answers it on paper.
3) Is a 10-32 the right screw for a ground screw or green grounding terminal?
10-32 is the thread the trade uses for bonding and grounding terminals in boxes and enclosures, and this one is a 10-32 with 32 TPI in that thread class. Where it differs from a dedicated green ground screw is finish and marking: this is a plain stainless slotted hex head machine screw, not a green painted, knurled grounding screw. For a tapped ground hole in an enclosure it works; where code or inspection wants an identified green grounding screw, order that part instead.
4) Can I drive these with a nut driver, or do I need a screwdriver?
Both. The head is a hex with a slot across the top, so a 5/16 inch nut driver or a flat blade screwdriver will seat it. Head width runs 0.305 to 0.312 inch, which is what a 5/16 driver is cut for. Electricians generally prefer the nut driver on these because you can run them one-handed in a panel.
5) Are these hex machine screws stainless, and will they hold up outdoors or in a wet location?
Stainless steel throughout, which is why these get specified for damp, wet, and coastal work where a plated steel screw would bloom rust and seize in the tapped hole. If you are bonding to a stainless or aluminum enclosure, stainless also avoids the galvanic mismatch you get with zinc plated hardware.
6) How many 10-32 x 3/4 stainless hex machine screws come in a jar, and is there an order minimum?
They ship in a jar of 100 pieces, and 100 count is the order minimum, so one jar is the smallest buy. The jar packaging is the practical part for MRO stockrooms and service vans: it stays closed in a drawer instead of spilling like a poly bag. Other sizes and quantities can be arranged by request.
7) What size washer goes under this hex machine screw head?
Match a washer with an outside diameter in the 0.384 to 0.414 inch range, which is the sizing listed against this screw. That is a standard No. 10 washer. Anything much larger will overhang a small device ear; anything smaller gets covered by the hex head and does nothing. In stainless work, pair it with a stainless washer so you are not mixing metals at the joint.
8) How tall is the head on this slotted hex machine screw? I need low profile clearance.
Head height runs 0.105 to 0.120 inch, so it sits very close to the surface once seated. That matters when a cover plate, a device yoke, or a panel door has to close over the screw head without fouling. If you need absolutely flush, a flat head screw is the better call, since even a low hex head still stands proud.
9) Where is the Metallics JHHMS48SS made?
Country of origin is China. Procurement buyers tracking sourcing on an electrical bill of material should record it that way for their submittal paperwork.
How fast can I get the Metallics JHHMS48SS delivered?
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Does the Metallics JHHMS48SS come with a warranty?
Absolutely. The Metallics JHHMS48SS is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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