Metallics JRMB49 10-24 x 1/2 i...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$192.86
Metallics JRMB49 10-24 x 1/2 in. Round Head Slotted Machine Screws - Brass - 100qty

Metallics JRMB49 10-24 x 1/2 in. Round Head Slotted Machine Screws - Brass - Each

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Model: JRMB49
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$192.86
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10-24 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
    • Round head with slotted Drive
    • 10-24 Diameter, 1/2" Length

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:
0.123 - 0.137 in.
Fastener Head Type:
Round
Fastener Head Width:
0.334 - 0.359 in.
Fastener Length:
2-Jan
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:
0.583 lbs
Product Width:
3 in
Recess Penetration Gaging Depth:
0.082 - 0.108
Slot Depth:
0.065 - 0.087
Slot Width:
0.05 - 0.06
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 JRMB49 – Frequently Asked Questions

1) Will a Metallics JRMB49 10-24 machine screw thread into a standard 10-24 tapped hole in an electrical box or device?
Yes. The JRMB49 is a 10-24 screw cut to the ANSI/ASME B1.1 thread standard at 24 threads per inch, so it mates with any clean 10-24 tapped hole, which is the thread used on most steel box ears, device straps and ground lug holes. At 1/2 inch long it suits shallow tapped bosses; for deeper engagement you would step up in length.
2) Do these brass machine screws meet Buy American or ARRA requirements for a government or public project?
No. The JRMB49 is not Buy American compliant and is not ARRA compliant, with a multi-country origin. If your contract carries a domestic sourcing clause, this screw will not satisfy it and you need a domestically produced fastener instead.
3) Why use a brass machine screw instead of steel or stainless for electrical work?
Brass is what the JRMB49 is made from, and the reason to pick it is conductivity and corrosion resistance. Brass hardware is the usual choice for grounding and bonding connections and for damp locations where a plated steel screw would rust in the hole. Where you need higher tensile strength instead, a steel or stainless screw in the same 10-24 x 1/2 size is the better pick.
4) Will the round head on a 10-24 brass machine screw sit flush, or does it stand above the surface?
It stands proud. The round head measures 0.334 to 0.359 in. across and 0.123 to 0.137 in. tall, so it seats on top of the material rather than sinking in. There is no countersink taper on a round head. If you need the fastener flush with a plate or panel, use a flat head screw and a countersunk hole instead.
5) How are Metallics JRMB49 brass machine screws packaged, and what is the smallest quantity I can order?
They come in a jar of 100, and 100 is the order minimum. That is the practical pack for a service truck or an MRO crib where you draw a handful at a time rather than a single screw. The filled jar weighs 0.583 lbs.
6) Is the JRMB49 built to a recognized dimensional spec so it interchanges with other brands of 10-24 round head screw?
Yes. Head and slot dimensions follow ASME B18.6.3, the standard for inch machine screws, and the threads follow ANSI/ASME B1.1. Any other 10-24 x 1/2 in. round head slotted screw made to those same standards will interchange with it in the same hole.
7) What trades actually use a 10-24 x 1/2 in. brass round head machine screw?
Metallics lists the JRMB49 for the electrical, plumbing, heating and air conditioning industries. In practice it is a bench and truck-stock screw: fastening devices and covers to tapped boxes, securing straps and clamps, and brass-to-brass connections where a steel screw would corrode.
8) Can I rely on a published tensile strength for these Metallics machine screws?
No tensile figure should be read into them. Metallics notes that tensile values given for stainless machine screws are approximations only, since there is no single performance standard for stainless machine screws. Treat the JRMB49 as a dimensional and material spec item: 10-24 brass to ASME B18.6.3. If your job has a load-rated fastener callout, specify a graded bolt rather than a machine screw.
How fast can I get the Metallics JRMB49 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 JRMB49 come with a warranty?
Absolutely. The Metallics JRMB49 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 JRMB49?
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 JRMB49 from ZenSupply?
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