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Bolts M4 x 20 HXBT 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:
- DIN 933
- Division:
- Electrical H1
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 6.78 - 7 in.
- Fastener Height:
- 2.675 - 2.925
- Fastener Length:
- 20mm
- Fastener Width:
- 7.66
- Grade:
- A-2
- Language Code:
- EN
- Material Standard:
- ISO 3506
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-Hex_Hd_Metric_Bolt_18-8_and_316_SS.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:
- 268 g
- Product Width:
- 76.2 MM
- Sub Division:
- Electrical-E H2
- Thread Pitch:
- 0.7
- Thread Standard:
- ISO 724|ISO 965-1
- Wrenching Height:
- 1.87
- Department:
- Electrical
- Product Subgroup:
- Bolts
- Product Type:
- Hexagonal Bolt
- Type2:
- Hexagonal Bolt
- Series:
- JMSBHC
- Product Details:
- Hexagonal Bolt
- Product Material:
- 18-8 Stainless Steel
Metallics JMSBHC45 – Frequently Asked Questions
1) What thread does the Metallics JMSBHC45 M4 x 20 hex bolt take, and will it run into a standard M4 nut?
It's an M4 coarse thread with a 0.7 mm pitch, cut to ISO 724 and ISO 965-1. That is the standard M4 coarse pitch, so it mates with any standard M4 nut or M4 x 0.7 tapped hole. Overall length under the head is 20 mm.
2) Is this stainless bolt OK outdoors or in a damp electrical enclosure?
The bolt is 18-8 stainless steel, property class A-2 per ISO 3506. A2/18-8 handles general outdoor and damp indoor service, which is why it gets used in enclosures, strut and raceway work. For chloride exposure (coastal, pool chemistry, de-icing salt) step up to a 316 stainless bolt instead.
3) How many bolts come in a jar, and can I buy fewer than a full jar?
The JMSBHC45 ships as a jar of 100 pieces, and 100 count is the order minimum, so the jar is the smallest unit. Metallics does offer other sizes and quantities by request if 100 of this length isn't what the job needs.
4) What wrench or socket size do I need for these M4 hex bolts?
Hex head, and on a DIN 933 M4 the across-flats is 7 mm, which matches the 7.66 figure given for fastener width across corners. A 7 mm socket or wrench drives it. Wrenching height on the head is 1.87, so a thin wall socket is not required.
5) Do these Metallics stainless bolts meet Buy American or ARRA requirements on a public job?
Metallics lists the JMSBHC45 as both ARRA compliant and Buy American compliant. Country of origin is China. Agencies read those programs differently, so match the compliance flag your spec section actually cites.
6) Should I use a stainless A2 bolt or a zinc plated steel bolt for electrical enclosure hardware?
Stainless A2 like this M4 x 20 won't rust-bleed or seize from corrosion, which is why it is specified for enclosures, outdoor boxes and anything that gets opened again years later. Zinc plated carbon steel is stronger in tension but the plating sacrifices in wet service. One caution with stainless: A2 galls when run down fast and dry, so drive it slow or use anti-seize.
7) How much does a jar of 100 Metallics M4 x 20 stainless bolts weigh for shipping?
The packaged jar runs 268 g. Jar footprint is listed at 3 in length, 2.15 in height and 76.2 mm width, so it drops into a van bin or a parts drawer without repacking.
How fast can I get the Metallics JMSBHC45 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 JMSBHC45 come with a warranty?
Absolutely. The Metallics JMSBHC45 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 JMSBHC45?
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Why buy the Metallics JMSBHC45 from ZenSupply?
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