Metallics JRM35SLT 5/16-18 x 1...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
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Metallics JRM35SLT 5/16-18 x 1/2 in. Round Head Slotted Machine Screws - Steel Zinc - 100qty

Metallics JRM35SLT 5/16-18 x 1/2 in. Round Head Slotted Machine Screws - Steel Zinc - Each

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Model: JRM35SLT
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$50.36
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5/16-18 x 1/2 in. Round Head Slotted Machine Screws - Steel Zinc - 100qty

  • Features

    • 5/16-18 Diameter, 1/2" Length
    • Round head with slotted Drive
    • Steel Zinc Material

  • 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:
0.198 - 0.216 in.
Fastener Head Type:
Round
Fastener Head Width:
0.557 - 0.59 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:
2.7 in
Product Length:
3 in
Product Weight:
1.88 lbs
Product Width:
3 in
Recess Penetration Gaging Depth:
0.144 - 0.170
Slot Depth:
0.099 - 0.132
Slot Width:
0.072 - 0.084
Sub Division:
Electrical-E H2
Tensile Strength:
60000 psi minimum
Thread Per Inch:
18
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 JRM35SLT – Frequently Asked Questions

1) Will a 5/16-18 machine screw thread into my existing tapped box or strut nut?
The Metallics JRM35SLT is a 5/16-18 machine screw, which is the coarse (UNC) pitch at 18 threads per inch. It will thread into any 5/16-18 tapped hole or nut. If the hole in your enclosure or channel nut is tapped 5/16-24 fine, this screw will not start. Machine screws need a tapped hole or a nut; they do not cut their own thread.
2) Are zinc plated steel machine screws OK for outdoor or damp locations?
Zinc plated carbon steel is a mild corrosion finish meant for dry indoor and protected service. On exterior enclosures, wash-down areas, pool rooms or coastal sites the plating will eventually bloom and rust. For those openings specify stainless machine screws in the same 5/16-18 x 1/2 size instead.
3) How strong are these screws, and can I use them for a structural connection?
Tensile strength is 60,000 psi minimum with a hardness of Rockwell B70 to B100, made from AISI 1006 to 1022 low carbon steel. That is standard low carbon machine screw material, fine for mounting devices, covers, straps, plates and enclosure hardware. It is not a graded structural bolt, so for load bearing or seismic connections use an SAE graded bolt called out on the drawing.
4) Do these screws meet Buy American or ARRA requirements on a federal job?
The record flags the JRM35SLT as both ARRA compliant and Buy American compliant, with country of origin listed as China. Those two things can sit together because the compliance flag reflects the applicable provision rather than domestic melt and manufacture. If your contract requires a domestically manufactured fastener, treat the country of origin as the governing fact and specify accordingly.
5) Should I use a machine screw or a self tapping screw for mounting devices in sheet metal?
A machine screw like the 5/16-18 x 1/2 JRM35SLT is for holes that are already tapped, or for use with a nut, washer and lock washer. If you are going into bare unthreaded sheet metal with no nut behind it, a self drilling or self tapping screw is the right choice instead. Electricians typically keep both: machine screws for tapped box and strut hardware, tappers for field drilled sheet.
6) How are the Metallics JRM35SLT screws packaged and what is the minimum order?
They ship in a jar of 100 count, and 100 is the order minimum, so you are buying a full jar rather than loose pieces. Jar weight is listed at 1.88 lbs. Handy for a van or a shop bin where you are pulling a handful at a time.
7) Can I standardize on slotted round head machine screws across a facility, and what else matches?
The JRM series covers round head slotted machine screws in a range of diameters and lengths, with this one being the 5/16-18 x 1/2 inch. Metallics notes other sizes and quantities are available by request, so a facility can hold one head style and drive across sizes and keep a single screwdriver in the kit. Sticking to one drive type cuts cam-out and keeps spare bins simple.
How fast can I get the Metallics JRM35SLT 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 JRM35SLT come with a warranty?
Absolutely. The Metallics JRM35SLT 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 JRM35SLT?
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 JRM35SLT 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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