Metallics JRM30SLT 4-40 x 1/2 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
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Metallics JRM30SLT 4-40 x 1/2 in. Round Head Slotted Machine Screws - Steel Zinc - 100qty

Metallics JRM30SLT 4-40 x 1/2 in. Round Head Slotted Machine Screws - Steel Zinc - Each

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Model: JRM30SLT
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$50.23
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4-40 x 1/2 in. Round Head Slotted Machine Screws - Steel Zinc - 100qty

  • Features

    • Steel Zinc Material
    • Round head with slotted Drive
    • 4-40 Diameter, 1/2" Length

  • Additional Notes

    • In 1985, Metallics was the first fastener company in America to offer a full line of Combo’s! | 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:
C
Buy American Compliant:
C
Division:
Electrical H1
Drive Type:
Slotted
Fastener Head Height:
0.075 - 0.086 in.
Fastener Head Type:
Round
Fastener Head Width:
0.193 - 0.211 in.
Fastener Length:
2-Jan
Hardness:
Rockwell B70-B100
Language Code:
EN
Material Standard:
AISI 1006 - 1022
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:
0.2 lbs
Product Width:
3 in
Recess Penetration Gaging Depth:
0.046 - 0.065
Slot Depth:
0.044 - 0.058
Slot Width:
0.031 - 0.039
Sub Division:
Electrical-E H2
Tensile Strength:
60000 psi minimum
Thread Per Inch:
40
Department:
Electrical
Product Subgroup:
Screws
Product Type:
Machine Screw
Type2:
Machine Screw
Series:
JRM
Product Finish:
Zinc
Product Details:
Machine Screw
Product Material:
Steel Zinc

Metallics JRM30SLT – Frequently Asked Questions

1) Will a 4-40 x 1/2 inch machine screw work for mounting a device or plate in an electrical box?
The Metallics JRM30SLT is a 4-40 thread machine screw, 1/2 inch long, with a slotted round head. 4-40 is a small-diameter thread used for mounting small components, terminal plates, and low-voltage devices, not for standard wall plates or device yokes (those take 6-32). If the hole in your plate or box takes a 6-32 screw, this one will spin loose in it.
2) Are these Metallics machine screws steel or stainless, and how are they finished for corrosion?
Steel with a zinc finish, made from AISI 1006 to 1022 low-carbon steel, hardness Rockwell B70-B100, 60,000 psi minimum tensile. Zinc plating handles dry indoor use, panels, enclosures and interior device work. It is not a stainless screw, so for wet locations, exterior enclosures or washdown areas specify a stainless machine screw instead.
3) How much head does a 4-40 round head slotted screw sit above the surface?
Head height runs 0.075 to 0.086 inches, with a head diameter of 0.193 to 0.211 inches. A round head sits fully proud of the surface rather than pulling flush, so allow for that clearance and for the head's bearing footprint to be wider than the hole it covers. If you need the screw flush with the panel, a flat head countersunk screw is the right type instead.
4) Do these come loose or in a box, and is there a minimum order quantity?
They ship in a jar of 100, which is also the order minimum. Shipping weight on the jar is 0.2 lbs. If you need a different size or a different count, Metallics states other sizes and quantities are available by request.
5) Do these screws qualify for a Buy American or ARRA-funded job?
The JRM30SLT is flagged compliant for both ARRA and Buy American in the manufacturer's data, with country of origin listed as China. On a federally funded project where the specification requires domestically melted and manufactured fasteners, confirm which standard your contract is written to, because origin and program compliance are scored differently job to job.
6) What is the exact part number for the 4-40 x 1/2 inch Metallics round head slotted machine screw?
Order it as Metallics JRM30SLT, from the JRM series of round head slotted machine screws. One model, one configuration: 4-40 thread, 1/2 inch length, zinc plated steel.
How fast can I get the Metallics JRM30SLT 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 JRM30SLT come with a warranty?
Absolutely. The Metallics JRM30SLT 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 JRM30SLT?
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 JRM30SLT from ZenSupply?
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