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Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Screws
Metallics JRM84SB – Frequently Asked Questions
1) Will an 8-32 machine screw thread into standard electrical box and device mounting holes?
Yes. The Metallics JRM84SB is an 8-32 machine screw, which is the standard thread for outlet box device ears, switch and receptacle mounting, and most cover plate screw holes on steel boxes. Thread pitch is 32 threads per inch on a #8 diameter, so it mates with any tapped 8-32 hole without chasing or re-tapping.
2) How long is the Metallics JRM84SB screw, and is 1/2 inch enough to mount a device to a box?
The screw measures 1/2 inch under the head. That length is sized for direct device-to-box mounting, where only a few threads of engagement in the box ear are needed. If you are mounting through a plaster ring, spacer, or a thick wall-plate buildup, a 1/2 inch screw may bottom out short, and you would want a longer 8-32 machine screw instead.
3) Can I use the JRM84SB machine screw in sheet metal or drywall instead of a tapped hole?
No. A machine screw has a uniform, blunt-ended thread and no cutting point, so it needs a pre-tapped hole or a nut to hold. For sheet metal use a self-tapping or self-drilling screw, and for drywall use a drywall screw with an anchor. The 8-32 x 1/2 round head slotted machine screw is for threaded holes such as box ears, fixture canopies, and device straps.
4) Is the JRM84SB a Phillips or slotted screw head?
Slotted, with a round head. It drives with a flat-blade screwdriver, not a Phillips. Round head machine screws sit proud of the surface with a domed crown, so they are used where the head does not need to sit flush, unlike a flat or oval head that wants a countersunk hole.
5) How many screws come in a jar of Metallics JRM84SB?
One hundred screws per jar. The jar pack is a shop and service-truck quantity, which is why electrical contractors and maintenance crews buy 8-32 x 1/2 machine screws this way rather than in small blister cards. Order quantity is per jar, not per piece.
6) What is the exact part number to order this Metallics 8-32 x 1/2 round head slotted screw?
The manufacturer part number is JRM84SB from Metallics, covering the 8-32 x 1/2 inch round head slotted machine screw supplied in a 100-piece jar. That is the number to quote for a reorder or to match what is already on the shelf.
How fast can I get the Metallics JRM84SB 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 JRM84SB come with a warranty?
Absolutely. The Metallics JRM84SB 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 JRM84SB?
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