You may also like
Screw 1/4-28 x 5/16 SKT S-Scr Cup St (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 JSS1428516 – Frequently Asked Questions
1) What thread size and length is the Metallics JSS1428516 socket set screw?
It's a 1/4-28 x 5/16 inch socket set screw. The 1/4-28 is the fine-thread version of a quarter inch screw (28 threads per inch), so it will not thread into a coarse 1/4-20 hole. Overall length under the socket is 5/16 inch, which suits thin collars, lug bodies and small clamp blocks where a longer screw would bottom out.
2) Is the JSS1428516 set screw a cup point or a flat point?
Cup point. The cup end bites into the mating shaft or conductor and resists backing out under vibration, which is why it is the common choice for electrical lugs, set-screw connectors and shaft collars. If you need a point that will not mar the surface it clamps, a cup point is the wrong choice.
3) Do I need a hex key or a screwdriver for these 1/4-28 set screws?
A hex key. These are socket set screws, driven with an internal hex wrench rather than a blade or Phillips driver. There is no head to grip, so the screw seats flush or below the surface of the part it threads into.
4) How many screws come in a jar of Metallics JSS1428516?
100 pieces per jar. It ships as a jar pack, which is the usual way an electrician or MRO stockroom buys replacement set screws for lugs and connectors rather than counting out singles.
5) What material are these Metallics cup point set screws made of?
Steel. Plain steel set screws are fine for dry indoor panel, gear and connector work; for wet or corrosive locations you want a stainless set screw instead, since uncoated steel will rust.
6) What is the manufacturer part number for this 1/4-28 x 5/16 cup point set screw?
Metallics part number JSS1428516. That single number covers the 1/4-28 x 5/16 steel socket set screw, cup point, in the 100 piece jar, so there is no size or finish option to select separately.
How fast can I get the Metallics JSS1428516 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 JSS1428516 come with a warranty?
Absolutely. The Metallics JSS1428516 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 JSS1428516?
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 JSS1428516 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.