Metallics JRM46SLT 4-40 x 3/4 ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
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Metallics JRM46SLT 4-40 x 3/4 in. Round Head Slotted Machine Screws - Steel Zinc - 100qty

Metallics JRM46SLT 4-40 x 3/4 in. Round Head Slotted Machine Screws - Steel Zinc - Each

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Model: JRM46SLT
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$50.26
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4-40 x 3/4 in. Round Head Slotted Machine Screws - Steel Zinc - 100qty

  • Features

    • Steel Zinc Material
    • Round head with slotted Drive
    • 4-40 Diameter, 3/4" 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:
4-Mar
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:
0.27 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 JRM46SLT – Frequently Asked Questions

1) Will a 4-40 machine screw thread into a standard device box or switch plate ear?
The Metallics JRM46SLT is a 4-40 thread screw with 40 threads per inch, which is the size used for wall plates and small device mounting, not the 6-32 used for receptacles and switches in a steel device box. If you are fastening a device yoke to a box, you need 6-32. Use the 4-40 where the tapped hole or nut is actually 4-40.
2) Are zinc plated steel machine screws OK outdoors or in a damp location?
Zinc plating on carbon steel is a mild corrosion coating, fine for dry interior electrical work, panel and enclosure assembly, and general MRO. For wet locations, exterior enclosures, or anywhere washdown or coastal salt is involved, specify a stainless 4-40 screw instead. The JRM46SLT is steel with a zinc finish.
3) Do I get one screw or a box when I order the Metallics JRM46SLT?
It ships as a jar of 100. The order minimum is 100 count, so the 4-40 x 3/4 in. round head screws come as a jar quantity rather than loose pieces.
4) Is this screw strong enough for a structural or load bearing connection?
No. The 4-40 Metallics screw is rated at 60,000 psi minimum tensile with a hardness of Rockwell B70 to B100, made from AISI 1006 to 1022 low carbon steel. That is standard commercial machine screw material for fastening covers, plates, brackets and devices. It is not a graded structural fastener, so do not substitute it where a drawing calls out a bolt grade.
5) Will these machine screws meet a Buy American or ARRA requirement on a government job?
The Metallics 4-40 x 3/4 in. round head screws are flagged compliant for both ARRA and Buy American in the product record, with country of origin listed as China. On federally funded work, confirm which standard your contract actually invokes, since the two have different content rules.
6) Do I need a nut, or will these thread into a tapped hole?
A machine screw has a uniform straight thread and no point, so the JRM46SLT needs either a 4-40 tapped hole or a 4-40 nut. It will not form its own thread in sheet metal or plastic the way a self-tapping screw does. Nuts are ordered separately.
7) What does a jar of 100 of these 4-40 screws weigh for shipping?
The jar is listed at 0.27 lbs with a 3 x 3 x 2.15 in. package footprint, so it is easy to add to a mixed MRO order or keep several sizes on the truck without weight concerns.
How fast can I get the Metallics JRM46SLT 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 JRM46SLT come with a warranty?
Absolutely. The Metallics JRM46SLT 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 JRM46SLT?
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 JRM46SLT from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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