Metallics JRMB76 12-24 x 1/2 i...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$192.86
Metallics JRMB76 12-24 x 1/2 in. Round Head Slotted Machine Screws - Brass - 100qty

Metallics JRMB76 12-24 x 1/2 in. Round Head Slotted Machine Screws - Brass - Each

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Model: JRMB76
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$192.86
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12-24 x 1/2 in. Round Head Slotted Machine Screws - Brass - 100qty

  • 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.

  • Features

    • Brass Material
    • 12-24 Diameter, 1/2" Length
    • Round head with slotted Drive

Manufacturer Resources

Product Specs

Minimum Purchase:
100 units
Arra Compliant:
C
Buy American Compliant:
C
Dimensional Standard:
ASME B18.6.3
Division:
Electrical H1
Drive Type:
Slotted
Fastener Head Height:
0.139 - 0.153 in.
Fastener Head Type:
Round
Fastener Head Width:
0.382 - 0.408 in.
Fastener Length:
2-Jan
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:
CT
Pack Type:
Jar
Product Group:
Fasteners
Product Height:
2.15 in
Product Length:
3 in
Product Weight:
0.75 lbs
Product Width:
3 in
Recess Penetration Gaging Depth:
0.082 - 0.108
Slot Depth:
0.073 - 0.096
Slot Width:
0.056 - 0.067
Sub Division:
Electrical-E H2
Thread Per Inch:
24
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 JRMB76 – Frequently Asked Questions

1) Will a 12-24 machine screw thread into a standard electrical box or device ring?
Yes. The Metallics JRMB76 is a 12-24 thread (24 threads per inch, cut to ANSI/ASME B1.1), which is the thread used for grounding screws and box/fixture mounting holes in standard steel outlet boxes and mud rings. At 1/2 inch long it gives enough engagement for a box ear or ground lug without bottoming out in a shallow tapped hole.
2) Is the JRMB76 solid brass or just brass plated?
Solid brass. The product material is listed as brass, not plated steel, which is why these get specified for grounding connections and for damp or corrosive locations where a plated screw would rust out.
3) How much room does the round head take up above the surface?
The round head on this 12-24 brass screw sits 0.139 to 0.153 inch high and measures 0.382 to 0.408 inch across. That domed profile stands proud of the surface, so if you need the head flush you want a flat head screw instead of this one.
4) Do these brass machine screws meet Buy American requirements for a government or institutional job?
The JRMB76 is flagged as both ARRA compliant and Buy American compliant, which is what a public-works or federally funded spec usually asks for. Country of origin is recorded as multiple.
5) Are these sold loose or in a set quantity?
They ship as a jar of 100. Order minimum is 100 count, so the pack is the buying unit rather than individual screws.
6) Will the JRMB76 interchange with other brands of 12-24 round head slotted machine screws?
Yes, dimensionally. It is made to ASME B18.6.3, the standard that governs head and slot geometry on inch machine screws, and the thread is ANSI/ASME B1.1. Any other 12-24 x 1/2 round head slotted screw built to those same standards will drop into the same tapped hole.
7) Can I use a brass machine screw for a grounding connection?
Brass is the usual material for grounding hardware because it stays conductive and will not corrode in a box the way plated steel does, and this screw is solid brass in the 12-24 thread that tapped ground holes use. Note the head is round, not the green-painted hex head some inspectors look for on a dedicated ground screw.
How fast can I get the Metallics JRMB76 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 JRMB76 come with a warranty?
Absolutely. The Metallics JRMB76 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 JRMB76?
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 JRMB76 from ZenSupply?
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