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Screw 3/8-16 x 1-3/4 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 JRM79SB – Frequently Asked Questions
1) What thread size and length is the Metallics JRM79SB machine screw?
The JRM79SB is a 3/8-16 x 1-3/4 inch machine screw. That is the coarse (UNC) 3/8 inch thread, so it mates with any 3/8-16 tapped hole or nut, and the 1-3/4 inch length is measured under the head on a round head screw. If your box, strut, or fixture is tapped 3/8-16 and you need less grip, step down in length rather than changing the thread.
2) Can I use a 3/8-16 machine screw like the JRM79SB in a drilled hole in sheet metal?
Not on its own. A machine screw has a straight, non-tapering thread, so it needs a mating 3/8-16 tapped hole or a nut behind the work. In unthreaded sheet metal you either tap the hole to 3/8-16 first or back the screw with a 3/8-16 nut. For self-starting work in untapped metal you want a sheet metal or self-drilling screw instead, not this one.
3) Is the JRM79SB a round head slotted screw or a Phillips drive?
Slotted drive, round head. You drive it with a flat blade screwdriver, not a Phillips, and the domed round head sits proud of the surface rather than sitting flush. If the application needs the head buried in a countersink, a round head is the wrong profile for it.
4) How many screws come in a jar of Metallics JRM79SB?
One hundred screws per jar. Metallics packages this one as a jar rather than a loose count or a bulk box, which is how electricians and MRO stockrooms keep a single size on the truck or shelf without it mixing with other fasteners.
5) What is the Metallics part number to order for a 3/8-16 x 1-3/4 round head slotted machine screw?
Order Metallics JRM79SB. That single MPN covers the 3/8-16 x 1-3/4 inch round head slotted machine screw supplied as a jar of 100, so there is no size or finish option to specify alongside it.
How fast can I get the Metallics JRM79SB delivered?
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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 JRM79SB come with a warranty?
Absolutely. The Metallics JRM79SB 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 JRM79SB?
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