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Screw 8-32 x 1-1/4 FH SL MS BR (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 JFMB87 – Frequently Asked Questions
1) What size and type of screw is the Metallics JFMB87?
It's an 8-32 x 1-1/4 inch machine screw with a flat head and a slotted drive, in brass. The 8-32 callout means a #8 diameter with 32 threads per inch, so it mates with any 8-32 tapped hole or nut, and the 1-1/4 inch length is measured to the top of the flat head because flat heads sit flush in a countersunk hole.
2) Will the JFMB87 machine screw work in a standard electrical box or device mounting hole?
Yes. Device yokes, covers, and box ears in US electrical work are tapped 6-32 or 8-32, and this screw is the 8-32 thread. The catch is length and head style: at 1-1/4 inches it is long for a flush device screw, and the flat slotted head needs a countersunk seat to finish flush. If you are mounting a receptacle or switch to a box, that is usually a 6-32 oval head job, not this one.
3) Is the JFMB87 screw solid brass, and does that matter for outdoor or damp locations?
Brass, per the BR designation in the 8-32 x 1-1/4 callout. Brass does not rust the way plain steel does, which is why it gets specified for cover plates, damp-location trims, and anywhere a steel screw would bleed rust onto a finished surface. It is a softer metal than steel, so don't drive it hard with a power driver; the slotted head will cam out and burr.
4) How many Metallics JFMB87 screws come in a jar?
100 screws per jar. The pack type is a jar rather than a box, which is the format most electrical contractors keep on the van for loose fastener stock.
5) Do I need a countersunk hole to use this flat head slotted screw?
For it to sit flush, yes. A flat head has a conical underside that pulls down into a matching 82 degree countersink or a factory-countersunk plate hole. Drop it in a plain drilled hole and the head will stand proud and won't seat evenly. If you need a screw that bears on a flat surface, use a pan or round head 8-32 instead.
6) What part number do I order for the Metallics 8-32 x 1-1/4 brass flat head machine screw?
The manufacturer part number is JFMB87, from Metallics. That single number covers the 8-32 x 1-1/4 inch flat head slotted brass machine screw in the 100 count jar; there are no finish or length options under it.
How fast can I get the Metallics JFMB87 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 JFMB87 come with a warranty?
Absolutely. The Metallics JFMB87 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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