Metallics JRMB15 1/4-20 x 1-1/...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$192.86
Metallics JRMB15 1/4-20 x 1-1/2 in. Round Head Slotted Machine Screws - Brass - 100qty

Metallics JRMB15 1/4-20 x 1-1/2 in. Round Head Slotted Machine Screws - Brass - Each

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Model: JRMB15
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$192.86
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1/4-20 x 1-1/2 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

    • Round head with slotted Drive
    • Brass Material
    • 1/4-20 Diameter, 1-1/2" 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:
0.16 - 0.175 in.
Fastener Head Type:
Round
Fastener Head Width:
0.443 - 0.472 in.
Fastener Length:
1/1/02
Language Code:
EN
Order Minimum Imperial:
100
Order Minimum Uom Imperial:
CT
Pack Type:
Jar
Product Group:
Fasteners
Recess Penetration Gaging Depth:
0.104 - 0.130
Slot Depth:
0.082 - 0.109
Slot Width:
0.064 - 0.075
Sub Division:
Electrical-E H2
Thread Per Inch:
20
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 JRMB15 – Frequently Asked Questions

1) Why use brass machine screws instead of steel or stainless?
Brass is the material here, and it earns its place in two situations: where you need a non magnetic, non sparking fastener, and where you are fastening into brass or bronze hardware and want to avoid dissimilar metal corrosion. The tradeoff is strength. Brass is softer than steel or stainless, so it strips and shears at lower torque. For a structural or high clamp load joint, use steel or stainless instead.
2) Do these brass screws qualify for a Buy American or ARRA funded job?
No on both counts. The JRMB15 is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. For federally funded work carrying domestic sourcing requirements, this part will not satisfy the clause and you need a domestically produced fastener instead.
3) Will a 1-1/2 in. screw be long enough for my stack-up?
The JRMB15 gives 1-1/2 in. of overall threaded length under a round head, which is a full length machine screw rather than a short device screw. Machine screws are threaded the full length at this size, so your usable grip is 1-1/2 in. minus the combined thickness of whatever you are clamping. Shorter and longer lengths in the same 1/4-20 brass round head slotted pattern are available by request.
4) Is the head shape and size on these brass screws made to a published standard?
Yes. Head geometry follows ASME B18.6.3, the dimensional standard for inch slotted and recessed head machine screws, and the threads follow ANSI/ASME B1.1. That means the round head height and width fall in a defined tolerance band rather than being a vendor-specific shape, so replacements from any B18.6.3 round head 1/4-20 screw will seat the same way.
5) Can I rely on a tensile strength figure for these machine screws?
No published tensile rating applies here. Metallics notes that tensile values given for stainless machine screws are approximations only because there is no single performance standard for them, and this screw is brass, a softer material than stainless. Treat it as a fastener specified by dimension and material, not by strength class, and do not design a load bearing connection around an assumed rating.
6) How are these packaged, and is there a minimum I have to buy?
They ship in a jar of 100, and 100 count is the order minimum. That is a shop or truck-stock quantity rather than a loose each, so it suits an MRO crib or an electrical contractor stocking a common brass size. Larger quantities of the same screw can be requested.
How fast can I get the Metallics JRMB15 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 JRMB15 come with a warranty?
Absolutely. The Metallics JRMB15 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 JRMB15?
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 JRMB15 from ZenSupply?
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