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Screw 1/4-20 x 3/4 RH SL MS SBR (Jar 100)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics JRM3SB – Frequently Asked Questions
1) What thread size and length is the Metallics JRM3SB machine screw?
The JRM3SB is a 1/4-20 x 3/4 inch round head slotted machine screw. The 1/4-20 designation is the standard UNC coarse thread for 1/4 inch fasteners, so it mates with 1/4-20 tapped holes and standard 1/4-20 nuts. Shank length is 3/4 inch measured under the round head.
2) Will a 1/4-20 machine screw thread straight into sheet metal or drywall?
No. The JRM3SB is a machine screw, not a self-tapping or self-drilling screw. It has no cutting point, so it needs an existing 1/4-20 tapped hole or a nut behind the work. For enclosure covers, box ears, strut channel nuts and device mounting that are already tapped 1/4-20 it drops right in; for unthreaded sheet metal you want a self-drilling screw or a tapped insert instead.
3) How many screws come in a jar of Metallics JRM3SB?
Each jar holds 100 pieces. Metallics packages the JRM3SB in jar form rather than a loose bag or box, which is what electricians and maintenance crews use for bench and van stock on a part that gets pulled a few at a time.
4) What driver do I need for the Metallics JRM3SB screw?
A flat blade screwdriver. The head is a slotted round head, so there is no Phillips or square recess. The round head seats on top of the surface rather than countersinking, which means you do not need a chamfered or countersunk hole to run it in flush.
5) How many Metallics JRM3SB models do I have to choose from when ordering?
One. JRM3SB is a single configuration, the 1/4-20 x 3/4 inch round head slotted machine screw in the 100 piece jar, so there is no size, finish or pack axis to specify on the order.
How fast can I get the Metallics JRM3SB 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 JRM3SB come with a warranty?
Absolutely. The Metallics JRM3SB 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 JRM3SB?
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 JRM3SB 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.