Metallics JSRM45 1/2-13 x 4 in...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$964.29
Metallics JSRM45 1/2-13 x 4 in. Round Head Slotted Machine Screws - 18-8 Stainless - 50qty

Metallics JSRM45 1/2-13 x 4 in. Round Head Slotted Machine Screws - 18-8 Stainless - Each

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Model: JSRM45
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$964.29
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1/2-13 x 4 in. Round Head Slotted Machine Screws - 18-8 Stainless - 50qty

  • 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.

  • Features

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

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:
4
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:
11.11 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 JSRM45 – Frequently Asked Questions

1) What thread size and pitch are the Metallics JSRM45 machine screws?
The JSRM45 is a 1/2-13 machine screw, 4 inches long. The 13 is threads per inch, which is the UNC coarse pitch for a 1/2 inch diameter, so it mates with a standard 1/2-13 nut or tapped hole. Threads run the length as a machine screw thread, not a wood or sheet metal point.
2) Will a round head machine screw sit flush, or do I need a flat head?
The JSRM45 has a round head, which sits on top of the surface with a domed profile rather than pulling down into a countersink. If your part is countersunk and the fastener has to finish flush, you need a flat head machine screw instead. Round head also gives a wider bearing surface against unthreaded sheet or a slotted bracket.
3) Can these 18-8 stainless screws be used outdoors or in damp electrical enclosures?
18-8 stainless is the material, which is the common austenitic 300 series grade used where plated steel would rust. It holds up in wet and outdoor conditions and in damp enclosures. For salt spray or chlorinated environments, 316 is the usual step up.
4) How many screws come in a jar, and is there a minimum order?
These 1/2-13 x 4 in. stainless screws are packed in a jar with an order minimum of 50 count. Pricing is listed per each, so plan on ordering in that 50 quantity. Other sizes and quantities are available by request.
5) Do these Metallics stainless screws meet Buy American or ARRA requirements on a public job?
The JSRM45 is flagged as both ARRA compliant and Buy American compliant, with China as the country of origin. On federally funded work, verify which clause your contract actually invokes, because the compliance flag and the origin need to line up with the spec on your project.
6) Is a machine screw the right fastener here, or do I need a bolt or lag?
A machine screw like the JSRM45 is made for a mated thread, either a nut or a tapped hole, and it is threaded for a 1/2-13 UNC engagement. It is not a lag or wood screw and will not cut its own thread in timber or masonry. For anchoring into concrete or framing, use a lag screw or a concrete anchor instead.
7) What does a jar of these 1/2-13 x 4 inch stainless screws weigh for shipping?
A jar runs 11.11 lbs, with package dimensions of 4.5 x 4.5 x 7.25 inches. Worth knowing if you're carrying several jars up to a roof or mezzanine, or figuring freight on a multi-jar order.
How fast can I get the Metallics JSRM45 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 JSRM45 come with a warranty?
Absolutely. The Metallics JSRM45 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 JSRM45?
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 JSRM45 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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