Metallics JRMB8 8-32 x 3/8 in....
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$50.56
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Metallics JRMB8 8-32 x 3/8 in. Round Head Slotted Machine Screws - Brass - 100qty

Metallics JRMB8 8-32 x 3/8 in. Round Head Slotted Machine Screws - Brass - Each

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Model: JRMB8
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$50.56
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8-32 x 3/8 in. Round Head Slotted Machine Screws - Brass - 100qty

  • Features

    • Brass Material
    • 8-32 Diameter, 3/8" Length
    • Round head with slotted Drive

  • Additional Notes

    • Other sizes and quantities available by request | Tensile strength values for stainless screws are offered as approximations only; there is no single standard for the performance requirements of stainless machine screws.

Manufacturer Resources

Product Specs

Minimum Purchase:
100 units
Arra Compliant:
N
Buy American Compliant:
No
Dimensional Standard:
ASME B18.6.3
Division:
Electrical H1
Drive Type:
Slotted
Fastener Head Height:
0.107 - 0.12 in.
Fastener Head Type:
Round
Fastener Head Width:
0.287 - 0.309 in.
Fastener Length:
8-Mar
Field Application:
Electrical, Plumbing, Heating and Air Conditioning Industries
Language Code:
EN
Neurspe:
https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Round_Head_Machine_Screw.pdf
Order Minimum Imperial:
100
Order Minimum Uom Imperial:
JR
Pack Type:
Jar
Product Group:
Fasteners
Product Height:
2.15 in
Product Length:
3 in
Product Weight:
0.34 lbs
Product Width:
3 in
Recess Penetration Gaging Depth:
0.064 - 0.090
Slot Depth:
0.058 - 0.077
Slot Width:
0.045 - 0.054
Sub Division:
Electrical-E H2
Thread Per Inch:
32
Thread Standard:
ANSI/ASME B1.1
Department:
Electrical
Product Subgroup:
Screws
Product Type:
Machine Screw
Type2:
Machine Screw
Series:
JRMB
Product Details:
Machine Screw
Product Material:
Brass

Metallics JRMB8 – Frequently Asked Questions

1) Will a Metallics JRMB8 8-32 screw thread into a standard electrical device box or switch plate?
Yes. The JRMB8 is an 8-32 machine screw, which is the standard thread used for receptacle and switch mounting in device boxes, and its threads are cut to ANSI/ASME B1.1. At 3/8 inch long it is short, so it suits mounting a device or plate directly to tapped ears, not reaching through thick spacers or plaster rings.
2) How much will the round head of the JRMB8 stand off the surface, and how wide is it?
Head height runs 0.107 to 0.12 inch and head diameter 0.287 to 0.309 inch, built to ASME B18.6.3. That domed head sits proud of the work, so if you need the fastener flush with the plate or panel, use a flat head countersunk screw instead.
3) Does the JRMB8 meet Buy American or ARRA requirements for a government job?
No. The JRMB8 is not Buy American compliant and is not ARRA compliant, and country of origin is listed as multiple. If your spec carries a domestic sourcing clause, this screw will not satisfy it.
4) Why choose brass machine screws instead of steel for electrical work?
Brass does not rust, so the JRMB8 holds up in damp or corrosive locations where a plated steel screw would seize or stain. It is also non-magnetic and conducts, which matters on grounding and bonding hardware. Trade-off: brass is softer than steel, so drive it with a properly fitting slotted blade and do not overtorque.
5) What thread pitch is 8-32, and will these mate with my existing 8-32 tapped holes?
8-32 means 32 threads per inch on a #8 diameter, the UNC coarse series, and the thread is made to ANSI/ASME B1.1. Any standard 8-32 tapped hole or nut will take it. With only 3/8 inch of length, allow for the material thickness you are passing through before engagement starts.
6) How many Metallics JRMB8 screws come in a jar?
The JRMB8 is packed 100 screws to a jar, and 100 is the order minimum. The packed jar weighs 0.34 lbs.
7) Are these brass screws used outside electrical work?
Yes. Metallics lists the JRMB8 for electrical, plumbing, and heating and air conditioning work, so the same jar covers device mounting, cover plates, and small brass hardware across MRO trades.
How fast can I get the Metallics JRMB8 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 JRMB8 come with a warranty?
Absolutely. The Metallics JRMB8 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 JRMB8?
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 JRMB8 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.
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