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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 JSS381 – Frequently Asked Questions
1) What thread size and length is the Metallics JSS381 socket set screw?
The JSS381 is a 3/8-16 x 1 inch socket set screw. That is a 3/8 inch diameter with 16 threads per inch, the standard UNC coarse pitch for 3/8, and a 1 inch overall length. It drives with a hex key, not a screwdriver, since set screws have no head.
2) Is the JSS381 set screw cup point or flat point?
Cup point. The cupped end bites into a shaft or collar and resists backing out under vibration, which is why it is the usual choice for locking a pulley, coupling or collar onto a round shaft. If you need to avoid marring a finished shaft, a cup point is the wrong pick and a flat or nylon-tipped point is the one to look for.
3) How many Metallics JSS381 screws come in a jar, and is it sold loose?
These ship 100 to a jar, packaged as a jar rather than a bulk box or carded pack. That is a shop-counter quantity for an electrical or MRO crib, not a single-piece item.
4) What material and finish is the Metallics JSS381 socket set screw?
Steel with a black finish. Black oxide style steel set screws are a dry, indoor fastener; they offer little corrosion protection on their own, so for wet or exterior work you want a stainless set screw instead.
5) Is this a Metallics electrical fastener or a general machine shop screw?
Metallics catalogues the JSS381 under its electrical supplies line as a fastener, so it is stocked for electrical and MRO work, but a 3/8-16 x 1 cup point socket set screw is a standard fastener and works anywhere that thread and length is called out.
How fast can I get the Metallics JSS381 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 JSS381 come with a warranty?
Absolutely. The Metallics JSS381 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 JSS381?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Metallics JSS381 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.