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Screw 8-32 x 3/4 PN SD MS 18-8 SS (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 JSPS20SS – Frequently Asked Questions
1) What size and thread is the Metallics JSPS20SS machine screw?
It's an 8-32 x 3/4 inch machine screw, so a #8 diameter with 32 threads per inch and a 3/4 inch length. Machine screw threads mean it needs a tapped hole or a nut, not wood or drywall.
2) Will an 8-32 screw thread into a standard electrical box or device ring?
Yes. 8-32 is the standard thread used for device mounting holes in outlet boxes, mud rings, and switch/receptacle yokes, and the JSPS20SS is an 8-32 machine screw. The 3/4 inch length gives extra reach where a plaster ring or multiple gang spacers stack up and the standard shorter screw bottoms out.
3) Is the JSPS20SS screw stainless, and can it go outdoors or in a damp location?
The screw is 18-8 stainless steel, the common 300 series austenitic grade. That gives it corrosion resistance plated steel screws don't have, so it suits damp, outdoor, and washdown locations as well as coastal and food-service work. 18-8 is also non-magnetic in its annealed state, which matters on some instrumentation jobs.
4) What head and drive does this Metallics machine screw use?
Pan head with a slotted drive. The pan head seats flat with a low rounded crown and won't countersink, so it's for surface mounting against a flat bearing face, not into a chamfered hole. Slotted drive means a flat blade screwdriver, not Phillips or square, so bring the right tip if you're used to combo-drive device screws.
5) How does the JSPS20SS come packaged and how many screws do I get?
It ships as a jar of 100 screws, which is the handy quantity for a van stock or a shop bench rather than a bulk box. All units sold under part number JSPS20SS are the same jar-of-100 configuration.
6) Can I use this screw in wood, drywall, or sheet metal without a tapped hole?
No. The JSPS20SS is a machine screw with a uniform 8-32 machine thread and a blunt end, so it needs a pre-tapped hole or a mating 8-32 nut. For fastening into wood or drywall you want a wood screw or a drywall screw, and for untapped sheet metal a self-tapping or sheet metal screw with a tapered thread.
7) Is 3/4 inch too long for mounting a receptacle to a box?
Often, yes, if you're mounting a device directly to a flush box. A 1/2 inch 8-32 is the usual device screw there. The 3/4 inch length earns its place where you're going through a plaster or mud ring, a spacer, or a cover plate stack and need the extra thread engagement. Excess length just protrudes behind the ear, which is harmless in a deep box but can foul conductors in a shallow one.
8) What nut or thread size do I need to pair with the JSPS20SS?
An 8-32 nut, and in stainless if you want to keep the corrosion resistance consistent. Mixing an 18-8 stainless screw with a plated steel nut in a wet location sets up dissimilar-metal corrosion at the joint, so match the material where the assembly will see moisture.
How fast can I get the Metallics JSPS20SS delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 JSPS20SS come with a warranty?
Absolutely. The Metallics JSPS20SS 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 JSPS20SS?
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