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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 JFSC141 – Frequently Asked Questions
1) What size and thread is the Metallics JFSC141 socket head cap screw?
The JFSC141 is a 1/4-20 x 1 inch screw, so it's a 1/4 inch diameter body with 20 threads per inch and a 1 inch length. The 1/4-20 is a standard UNC coarse machine thread, so it mates with a 1/4-20 nut or a tapped 1/4-20 hole. Drilling for a tapped hole, the normal tap drill is a #7 bit.
2) Does the JFSC141 screw have a hex socket drive or a slotted head?
It's a socket head cap screw (SHCS), so it drives with a hex key, not a screwdriver. A 1/4-20 SHCS takes a 3/16 inch Allen wrench. Flat head, so it sits flush when the hole is countersunk for it.
3) Are these black steel screws okay for outdoor or damp electrical work?
No. The JFSC141 is plain steel with a black finish, which gives no real corrosion protection. Keep these to dry interior work, panels, enclosures in conditioned space, strut and bracket assembly indoors. For wet locations, damp exterior runs, or anything in a corrosive environment, specify a zinc-plated or stainless 1/4-20 screw instead.
4) Will a flat head socket cap screw sit flush, or does the hole need to be countersigned first?
Flat head socket cap screws only sit flush in a countersunk hole. The JFSC141 needs an 82 degree countersink in the part for the head to seat level with the surface. If your hole is straight-drilled with no countersink, the head will stand proud, and you'd want a button head or standard socket cap instead.
5) How many screws come in a jar of Metallics JFSC141?
100 screws per jar. Metallics packages these in a jar rather than a box, which is what MRO and electrical shops use for bin stock on a shelf or a service truck.
6) What is the Metallics part number I should order for a 1/4-20 by 1 inch flat socket cap screw?
JFSC141 is the Metallics part number, and it's the only model on it, so there are no finish or length options to pick. One number covers the 1/4-20 x 1 inch flat socket head cap screw in black steel, 100 to the jar.
How fast can I get the Metallics JFSC141 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 JFSC141 come with a warranty?
Absolutely. The Metallics JFSC141 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 JFSC141?
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