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Screw 5/16-18 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 JSS51638SS – Frequently Asked Questions
1) Is the JSS51638SS a cup point or a flat point set screw?
Cup point. The cup end bites into the shaft or bus it clamps against, which is what you want for a permanent grip on a round conductor or shaft. If you need a non-marring hold on a finished shaft, or you are seating into a matching cone-drilled hole, a flat or oval point set screw is the better choice instead.
2) Will a 3/8 inch long set screw be long enough for my lug or connector?
Measure the depth of the tapped hole in your lug or connector body first. At 3/8 inch overall length, this screw suits shallow bosses and thinner connector walls. If the tapped boss is deeper than 3/8 inch, the cup point may not reach the conductor at all, and you need a longer 5/16-18 set screw. Set screws are measured overall, there is no head to subtract.
3) How is this Metallics set screw driven, and what tool do I need?
It is a socket set screw, so it drives with a hex key in the recess at the end of the screw. A 5/16-18 socket set screw takes a 5/32 inch hex key. There is no head to grip, the screw seats flush or below the surface of the tapped hole.
4) Is the Metallics JSS51638SS sold as a replacement screw for electrical connectors?
Yes, it is stocked as an electrical fastener, not a general construction screw. Electrical contractors use 5/16-18 cup point socket set screws as replacements in mechanical lugs, split bolts, tap connectors and bus clamps where the original screw has been stripped, over-torqued or lost. Match the thread, the length and the point style to the original before installing.
5) How many screws come in a jar of Metallics JSS51638SS?
100 pieces per jar. The jar pack is the shop or service-truck quantity for these, which suits an electrical contractor or MRO stockroom replacing lugs and connector set screws rather than buying singles.
6) What is the exact part number to order this 5/16-18 x 3/8 socket set screw?
Order Metallics part number JSS51638SS. That is the single orderable model, a 5/16-18 x 3/8 socket set screw with a cup point, supplied in a jar of 100.
How fast can I get the Metallics JSS51638SS delivered?
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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 JSS51638SS come with a warranty?
Absolutely. The Metallics JSS51638SS 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 JSS51638SS?
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