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Metallics JRM56SLT Screws 1/2-13 X 3 Rh Sl MS St-zn (Jar 50)
Model: MET-JRM56SLT
Screws 1/2-13 X 3 Rh Sl MS St-zn (Jar 50)
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...
Metallics
$54.00
$5.79
Screws 1/2-13 x 3-1/2 Rd Hd Sl (Jar 25)
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 Black and Black Oxide screws are used to blend in with black-colored components.
- Steel Zinc yellow screws are popular in electronics applications.
- Steel Zinc is the most common and most popular variety of steel machine screws
Manufacturer Resources
Product Specs
- Arra Compliant:
- C
- Buy American Compliant:
- C
- Division:
- Electrical H1
- Drive Type:
- Slotted
- Fastener Head Type:
- Round
- Fastener Length:
- 3/1/02
- 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:
- 25
- Order Minimum Uom Imperial:
- CT
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 7.25 in
- Product Length:
- 4.5 in
- Product Weight:
- 2.08 lbs
- Product Width:
- 4.5 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
Metallics JRM57SLT – Frequently Asked Questions
1) What head and driver do these 1/2-13 Metallics machine screws use?
Round head with a single slot, so you drive them with a flat blade screwdriver. A round head sits proud of the surface rather than flush, so if you need the fastener flush in a countersunk hole this is the wrong head style.
2) How many screws come in a jar of Metallics JRM57SLT, and can I buy less than a full jar?
They ship as a jar of 25. Minimum order is 25 count, so the jar is the smallest unit, not loose pieces.
3) Are the JRM57SLT screws stainless or plated steel, and are they OK outdoors?
Steel with a zinc finish, not stainless. Zinc plating is the most common machine screw variety and handles dry interior service well, but it is a sacrificial coating, so for wet or corrosive exposure specify a stainless screw instead.
4) What is the tensile strength and hardness of these 1/2-13 steel machine screws?
Minimum tensile strength is 60,000 psi, with hardness in the Rockwell B70 to B100 range, made from AISI 1006 to 1022 low carbon steel. That is a general purpose fastener. If a drawing calls for a Grade 5 or Grade 8 bolt, this screw does not meet it.
5) Do the Metallics JRM screws meet Buy American and ARRA requirements for a government job?
Metallics lists the JRM57SLT as both ARRA compliant and Buy American compliant. Country of origin on record is China, so confirm which compliance clause your contract is written to before you submit it on a federally funded project.
6) Is a 3-1/2 inch machine screw fully threaded, and what else do I need to fasten with it?
The JRM57SLT is a machine screw, meaning it is a straight 1/2-13 threaded fastener meant to go into a tapped hole or a nut. Nuts and washers are not part of the jar of 25, so order those separately if your assembly is a through-bolt rather than a threaded boss.
7) Can I get this Metallics round head slotted screw in another length or a bigger box?
The JRM series covers other sizes and quantities by request beyond the 1/2-13 x 3-1/2 jar of 25, so if you need a shorter screw in the same round head slotted zinc pattern it can be sourced in the same family.
8) How much does a jar of Metallics 1/2-13 x 3-1/2 round head screws weigh for shipping?
The packed jar is listed at 2.08 lbs, with pack dimensions of 7.25 by 4.5 by 4.5 inches.
How fast can I get the Metallics JRM57SLT 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 JRM57SLT come with a warranty?
Absolutely. The Metallics JRM57SLT 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 JRM57SLT?
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
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