Metallics JRM55SLT 1/2-13 x 1-...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$289.29
Metallics JRM55SLT 1/2-13 x 1-1/4 in. Round Head Slotted Machine Screws - Steel Zinc - 50qty

Metallics JRM55SLT 1/2-13 x 1-1/4 in. Round Head Slotted Machine Screws - Steel Zinc - Each

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Model: JRM55SLT
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$289.29
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1/2-13 x 1-1/4 in. Round Head Slotted Machine Screws - Steel Zinc - 50qty

  • 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.

  • Features

    • Steel Zinc Material
    • Round head with slotted Drive
    • 1/2-13 Diameter, 1-1/4" 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:
1/1/04
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:
50
Order Minimum Uom Imperial:
CT
Pack Type:
Jar
Product Group:
Fasteners
Product Height:
5.75 in
Product Length:
3.5 in
Product Weight:
4.08 lbs
Product Width:
3.5 in
Sub Division:
Electrical-E H2
Tensile Strength:
60000 psi minimum
Thread Per Inch:
13
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 JRM55SLT – Frequently Asked Questions

1) What thread size and pitch is the Metallics JRM55SLT machine screw?
It's a 1/2-13 thread, meaning 1/2 inch nominal diameter with 13 threads per inch, which is the standard UNC coarse pitch for a 1/2 inch screw. Overall length is 1-1/4 inches, so it will thread into any 1/2-13 tapped hole, nut, or insert.
2) What is the tensile strength of the Metallics 1/2-13 steel zinc machine screw?
Minimum tensile strength is 60,000 psi, with a hardness range of Rockwell B70 to B100. The steel conforms to AISI 1006 through 1022, which is low carbon steel, so this is a general purpose fastener rather than a high strength grade. If your drawing calls for a Grade 5 or Grade 8 equivalent load, specify a higher strength fastener.
3) How many screws come in a Metallics JRM55SLT order, and how are they packaged?
The JRM55SLT ships as a jar of 50 screws, with 50 count as the order minimum. Plan quantities in multiples of 50 rather than individual pieces.
4) Is a round head slotted machine screw the right choice, or should I use a flat head?
A round head sits proud of the surface with a domed profile, so it is the choice when you have a flat, untapered hole and don't need the fastener flush. If your part is countersunk and the head has to finish flush with the surface, a round head is the wrong pick, go to a flat head. The JRM55SLT is round head with a slotted drive, which means a straight-blade screwdriver, not Phillips or square.
5) Will zinc plated steel screws hold up outdoors or in a damp location?
Zinc plating on steel is a mild corrosion barrier meant for dry indoor and protected service. For exterior, wet, or washdown locations, or anywhere near chemicals or coastal salt air, use stainless rather than steel zinc. The JRM55SLT is steel with a zinc finish.
6) Do these Metallics machine screws meet Buy American or ARRA requirements on a federally funded job?
The JRM55SLT is flagged compliant for both ARRA and Buy American in the manufacturer data, while country of origin is listed as China. On a federally funded project, give your compliance officer both of those facts before you submit, since the two are evaluated under different rules.
7) How much does a jar of Metallics JRM55SLT 1/2-13 screws weigh?
The packaged jar of 50 weighs 4.08 lbs and measures 3.5 x 3.5 x 5.75 inches. That matters if you're stocking a service van drawer or a shop bin, it's a heavier jar than the smaller diameters in the JRM line.
8) Can I get the Metallics JRM round head slotted screws in other lengths or pack sizes?
Yes. Metallics offers other sizes and quantities in the JRM round head slotted line by request. Order by the model number for the size you need, JRM55SLT being the 1/2-13 x 1-1/4 inch in a 50 count jar.
How fast can I get the Metallics JRM55SLT 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 JRM55SLT come with a warranty?
Absolutely. The Metallics JRM55SLT 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 JRM55SLT?
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 JRM55SLT 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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