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Screw 8-32 x 1 PN PH MS 316-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 JSPMP18SS316 – Frequently Asked Questions
1) Are these screws stainless, and will they hold up outdoors or near salt water?
They're 316 stainless steel, the marine grade. 316 adds molybdenum over 304, which is why it's specified for coastal, wash-down, pool chemical and chloride-exposed work where plated steel screws rust out. Good choice for exterior enclosures, dock and marina electrical, and food processing environments.
2) How many screws come in a jar of Metallics JSPMP18SS316?
100 screws per jar. Metallics packages this one in a jar rather than a box, which is the format most electricians keep on the van or on the shelf for pulling a handful at a time.
3) What's the difference between a pan head Phillips machine screw and a self-tapping sheet metal screw for box work?
A machine screw like the 8-32 x 1 JSPMP18SS316 has uniform machine threads and needs a pre-tapped hole or a nut, which is exactly what device box and ring mounting holes already are. A sheet metal or self-tapping screw cuts its own thread in unthreaded material and will chew up a factory 8-32 hole. For attaching devices, plates and brackets to tapped holes, use the machine screw. For fastening into bare sheet metal with no thread, you want a self-drilling type instead.
4) Does a pan head sit flush, or do I need a flat head for a countersunk hole?
Pan head means a rounded crown that seats on top of the surface, not down inside it. It will not sit flush in a countersunk hole. If the plate or bracket is countersunk, order a flat head 8-32 instead; if the hole is plain and flat, the pan head on this screw gives you a broad bearing surface and holds the part down well.
5) Can I use 316 stainless screws in an aluminum enclosure?
You can, but be aware of the dissimilar metal pairing. Stainless and aluminum sit apart on the galvanic scale, so in a wet or salt-air location the aluminum is the one that corrodes at the joint. In dry indoor enclosures it's a non-issue; outdoors, isolate the joint or use a sealant on the thread. The screw itself, being 316, will not be the part that fails.
6) What is the exact part number to order these 8-32 stainless screws?
Metallics part number JSPMP18SS316. That covers the 8-32 x 1 inch pan head Phillips machine screw in 316 stainless, jar of 100.
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Does the Metallics JSPMP18SS316 come with a warranty?
Absolutely. The Metallics JSPMP18SS316 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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