Metallics JSRM44 1/2-13 x 3 in...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$675.00
Metallics JSRM44 1/2-13 x 3 in. Round Head Slotted Machine Screws - 18-8 Stainless - 50qty

Metallics JSRM44 1/2-13 x 3 in. Round Head Slotted Machine Screws - 18-8 Stainless - Each

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Model: JSRM44
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$675.00
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1/2-13 x 3 in. Round Head Slotted Machine Screws - 18-8 Stainless - 50qty

  • Features

    • 18-8 stainless Material
    • 1/2-13 Diameter, 3" Length
    • Round head with slotted Drive

  • 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.

Manufacturer Resources

Product Specs

Minimum Purchase:
50 units
Arra Compliant:
C
Buy American Compliant:
C
Division:
Electrical H1
Drive Type:
Slotted
Fastener Head Type:
Round
Fastener Length:
3
Hardness:
Rockwell B85-B95
Language Code:
EN
Material Standard:
SAE
Order Minimum Imperial:
50
Order Minimum Uom Imperial:
CT
Pack Type:
Jar
Product Group:
Fasteners
Product Height:
7.25 in
Product Length:
4.5 in
Product Weight:
9.31 lbs
Product Width:
4.5 in
Sub Division:
Electrical-E H2
Tensile Strength:
80000 psi minimum
Thread Per Inch:
13
Department:
Electrical
Product Subgroup:
Screws
Product Type:
Machine Screw
Type2:
Machine Screw
Series:
SRM
Product Details:
Machine Screw
Product Material:
18-8 Stainless

Metallics JSRM44 – Frequently Asked Questions

1) What thread does the Metallics JSRM44 machine screw take, and will it run into a standard 1/2-13 nut or tapped hole?
It's a 1/2-13 thread, 13 threads per inch, which is the standard UNC coarse pitch for a 1/2 inch fastener. It will thread into any 1/2-13 tapped hole, coupling nut, or strut nut. Shank length is 3 inches under the head.
2) Are these 1/2-13 x 3 in. Metallics screws stainless, and can they be used outdoors or in damp locations?
They're 18-8 stainless, the common 300-series austenitic grade used for corrosion resistance in wet and outdoor work. Hardness runs Rockwell B85-B95. For heavy chloride exposure (coastal, pool chemical rooms) 316 is the step up, but 18-8 covers general exterior and damp-location use.
3) How many screws come in a jar of Metallics JSRM44, and can I buy just one?
They ship in a jar with a 50 count order minimum, so the buying unit is the 50-piece jar rather than a single screw.
4) Does a round head screw sit flush, or do I need a flat head for a countersunk hole?
Round head sits on top of the surface, it does not sit flush. The domed head bears on the face of the material, so it's for through-holes and un-countersunk plate. If your hole is countersunk and the head has to finish flush, you need a flat head screw instead.
5) Are the Metallics JSRM44 machine screws Buy American or ARRA compliant for a government job?
Both the ARRA and Buy American compliance flags are marked C on this screw, with country of origin China. On federally funded work where domestic-source substantiation is required, pair that origin with your project's specific clause before you submit.
6) Is a machine screw the same thing as a bolt or a self-tapping screw?
No. The JSRM44 is a machine screw: uniform 1/2-13 thread the full working length, no point, so it needs a pre-tapped hole or a nut. It won't cut its own thread the way a self-tapper does, and it isn't a graded structural bolt. For electrical work that means tapped enclosure bosses, strut nuts, and nut-and-washer assemblies.
7) What driver do I need for the Metallics JSRM44 round head screws?
Slotted drive with a round head, so a flat blade screwdriver. Slotted is hand-drive work; it cams out under impact drivers, so if you're setting 50 of these in a panel, plan on a hand driver or a slow clutched bit.
8) How much does a jar of 1/2-13 x 3 in. stainless machine screws weigh for freight?
The packaged jar weighs 9.31 lbs and measures 4.5 x 4.5 x 7.25 inches. Useful if you're consolidating a van stock order or figuring shelf space in a parts crib.
How fast can I get the Metallics JSRM44 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 JSRM44 come with a warranty?
Absolutely. The Metallics JSRM44 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 JSRM44?
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 JSRM44 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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