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Screw 3/8-16 x 3/8 SKT S-Scr Cup 18- (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 JSS3838SS – Frequently Asked Questions
1) Is this set screw stainless, and will it hold up outdoors or in damp electrical enclosures?
These are 18-8 stainless, the austenitic 300 series grade used for general corrosion resistance. That makes them suitable for damp locations, exterior enclosures, and washdown areas where a plain steel set screw would rust. 18-8 is not hardened to the level of an alloy steel set screw, so for high clamping torque on a drive shaft an alloy black-oxide screw is the tougher pick.
2) Is this a cup point set screw, and what does that mean for holding a conductor or shaft?
Cup point. The tip is a hollowed ring that bites into the mating surface, which is what you want when the screw has to grip and resist loosening on a shaft, bus lug, or ground connector. It leaves a visible indent, so it is not the choice where the clamped part must stay unmarked - a flat point does that job instead.
3) What tool drives the JSS3838SS, and is there a head sticking out?
It's a socket (hex key) set screw, so it drives with an Allen wrench from the end - there is no external head. That's why it works for flush installs in tapped holes where a projecting hex or slotted head would interfere.
4) Can I use these set screws on electrical lugs and ground connectors?
That's the intended use - this is a Metallics electrical fastener, and a 3/8-16 cup point socket set screw is the type used to clamp conductors in tapped lugs, split bolts, and mechanical grounding connectors. Confirm the tapped hole in your connector is 3/8-16 and that 3/8 inch of screw length reaches the conductor at the depth you need.
5) How many screws come in a jar of Metallics JSS3838SS?
One jar holds 100 screws, packaged in a jar rather than a box or bag - handy for a van shelf or a bench bin where you're pulling set screws one at a time. Order quantity is in jars, so a single purchase gives you the full 100.
6) What's the exact part number to order for the 3/8-16 x 3/8 stainless cup point socket set screw?
Metallics part number JSS3838SS. That one number covers the 3/8-16 x 3/8 inch 18-8 stainless cup point socket set screw in the 100-count jar; there are no finish or length options to specify under it.
How fast can I get the Metallics JSS3838SS delivered?
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Can I return it if it doesn’t work for me?
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reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Metallics JSS3838SS come with a warranty?
Absolutely. The Metallics JSS3838SS 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 JSS3838SS?
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