Metallics JSRM41 1/2-13 x 1-1/...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$385.71
Metallics JSRM41 1/2-13 x 1-1/4 in. Round Head Slotted Machine Screws - 18-8 Stainless - 50qty

Metallics JSRM41 1/2-13 x 1-1/4 in. Round Head Slotted Machine Screws - 18-8 Stainless - Each

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Model: JSRM41
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$385.71
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1/2-13 x 1-1/4 in. Round Head Slotted Machine Screws - 18-8 Stainless - 50qty

  • Features

    • Round head with slotted Drive
    • 1/2-13 Diameter, 1-1/4" Length
    • 18-8 stainless Material

  • 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:
1/1/04
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:
5.75 in
Product Length:
3.5 in
Product Weight:
4.66 lbs
Product Width:
3.5 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 JSRM41 – Frequently Asked Questions

1) What thread size and pitch are the Metallics JSRM41 machine screws?
The JSRM41 is a 1/2-13 machine screw, meaning a 1/2 inch nominal diameter with 13 threads per inch, which is the UNC coarse thread for that diameter. It mates with any standard 1/2-13 nut, tapped hole, or insert. Shank length is 1-1/4 inches, so usable grip is limited once you account for the nut and washers.
2) Are these machine screws stainless and will they hold up outdoors or in damp areas?
They are 18-8 stainless, the common austenitic grade used where plain or zinc-plated steel would rust. That makes them a reasonable pick for damp mechanical rooms, exterior boxes, and wash-down areas. 18-8 is not the grade to use in direct salt spray or chlorinated water, where 316 is the usual step up.
3) How many Metallics JSRM41 screws come in a pack and how are they packaged?
They ship in a jar of 50, and 50 is the order minimum, so you buy in full jars rather than individual pieces. Count that against your job quantity before ordering.
4) What driver do I need for the JSRM41 round head screws?
A flat-blade screwdriver. The JSRM41 uses a slotted drive with a round head, so there is no Phillips, square, or Torx recess. Slotted drive cams out more easily under power, so hand-driving or a low-speed driver with a properly sized blade is the way to seat these without chewing the slot.
5) Do these round head screws sit flush with the surface?
No. A round head sits proud of the material with a domed profile and a flat bearing underside, so it needs no countersink but will stand above the panel. If you need a flush face, specify a flat head countersunk screw instead.
6) How strong are these 1/2-13 stainless machine screws?
Tensile strength is listed at 80,000 psi minimum with hardness in the Rockwell B85 to B95 range. Treat those as approximations, since there is no single performance standard governing stainless machine screws. If your drawing calls out a graded structural fastener, a specified Grade 5 or Grade 8 bolt is the correct call, not a stainless machine screw.
7) Do these machine screws come with nuts or washers?
No. The JSRM41 is sold as screws only, a jar of 50 with no nuts, washers, or anchors included. Machine screws thread into a nut or a tapped hole, so order 1/2-13 nuts and any flat or lock washers separately as part of the same job.
8) Are the Metallics JSRM41 screws Buy American or ARRA compliant for a government job?
Both the Buy American and ARRA compliance fields on the JSRM41 are flagged as compliant, while country of origin is listed as China. On federally funded work, verify which clause your contract invokes, since the two do not always align.
9) Can I get the JSRM41 in a different length or a larger quantity?
Other sizes and quantities of these round head slotted stainless machine screws are available by request. The JSRM41 itself is fixed at 1/2-13 x 1-1/4 inches in a 50-count jar.
How fast can I get the Metallics JSRM41 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 JSRM41 come with a warranty?
Absolutely. The Metallics JSRM41 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 JSRM41?
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 JSRM41 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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