Metallics JRM73SLT 4-40 x 1-1/...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
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Metallics JRM73SLT 4-40 x 1-1/2 in. Round Head Slotted Machine Screws - Steel Zinc - 100qty

Metallics JRM73SLT 4-40 x 1-1/2 in. Round Head Slotted Machine Screws - Steel Zinc - Each

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Model: JRM73SLT
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$50.33
$0.33
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4-40 x 1-1/2 in. Round Head Slotted Machine Screws - Steel Zinc - 100qty

  • 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.

  • Features

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

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:
1/1/02
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:
0.38 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 JRM73SLT – Frequently Asked Questions

1) Will a 4-40 machine screw thread into a standard electrical device or switch plate?
The Metallics JRM73SLT is a 4-40 thread screw, 40 threads per inch, which is not the 6-32 size used for receptacles, switches and cover plates. Use it where 4-40 tapped holes or 4-40 nuts are already in place, such as small terminal blocks, nameplates and instrument panels. For device mounting and plate screws you want 6-32 instead.
2) How much grip length do I get out of a 1-1/2 in. 4-40 round head screw?
Machine screw length is measured from under the head down, so the full 1-1/2 in. is usable through-material and thread engagement. The round head adds 0.075 to 0.086 in. of height above the surface, with a head diameter of 0.193 to 0.211 in., so budget roughly that much proud of the work plus whatever nut or tapped depth you need at the far end.
3) Are these zinc machine screws OK for outdoor or damp locations?
These are low carbon steel with a zinc plating, which is an indoor and dry-location finish. Zinc gives handling and light humidity protection but will corrode in wet, washdown, coastal or chemical exposure. For exterior boxes, rooftop equipment or any wet location, specify a stainless 4-40 round head slotted screw instead.
4) How many screws come in a jar of Metallics JRM73SLT?
They ship 100 to a jar, and 100 count is the order minimum. So a single order unit gets you a full jar of 4-40 x 1-1/2 in. round head slotted screws, not a loose piece.
5) How strong is a 4-40 steel machine screw? Can I rely on it for a load-bearing bracket?
Rated at 60,000 psi minimum tensile with a hardness of Rockwell B70 to B100, made from AISI 1006 to 1022 carbon steel. That is standard low carbon commercial machine screw strength, fine for panels, plates, covers, nameplates and light brackets. It is not a structural or high-strength fastener, so for a load-bearing connection use a graded bolt sized to the load.
6) Do these screws meet Buy American or ARRA requirements for a government job?
The JRM73SLT 4-40 round head slotted screw is flagged compliant for both ARRA and Buy American in the manufacturer data, with country of origin listed as China. Public agency specs vary in how they treat that pairing, so match it against the exact clause in your contract documents before you submit it.
7) Will these screws take a 4-40 nut, or do they need a tapped hole?
Either works. The thread is a standard 4-40 machine screw thread at 40 threads per inch, so it mates with any 4-40 tapped hole, 4-40 hex nut, or 4-40 threaded insert. Machine screws are fully threaded for their length, so a nut can be run anywhere along the 1-1/2 in. shank to suit your stack-up thickness.
How fast can I get the Metallics JRM73SLT 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 JRM73SLT come with a warranty?
Absolutely. The Metallics JRM73SLT 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 JRM73SLT?
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 JRM73SLT from ZenSupply?
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