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Bolt 1/4-20 x 2 Ind Hx Hd Serr Flan (Jar 100)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Bolts
Metallics JG5HSF142 – Frequently Asked Questions
1) What thread size and length is the Metallics JG5HSF142 hex head bolt?
The JG5HSF142 is a 1/4-20 x 2 inch bolt, so it's a quarter inch diameter with 20 threads per inch and a 2 inch length under the head. The 1/4-20 is the standard coarse (UNC) thread in that diameter, so it mates with any standard 1/4-20 nut or tapped hole.
2) What does the serrated flange on this 1/4-20 bolt do, and do I still need a washer?
The JG5HSF142 has an indented hex head with a serrated flange. The flange spreads the clamp load over a wider bearing area like an integral washer, and the serrations bite into the mating surface to resist loosening under vibration. For most sheet metal and strut work that means no separate flat washer or lock washer is needed. One caveat: the serrations mar the surface they seat against, so on a finished or painted face you may want a plain hex bolt and washer instead.
3) How many bolts come in a jar of Metallics JG5HSF142?
Each jar holds 100 of the 1/4-20 x 2 inch serrated flange hex bolts. The jar pack is the handy-pack format electricians keep on the van or on a shelf in the shop rather than a bulk carton.
4) Can I use a 1/4-20 serrated flange bolt for strut channel and electrical mounting work?
That's the usual job for it. Metallics catalogs the JG5HSF142 as an electrical fastener, and a 1/4-20 serrated flange hex bolt is the common size for channel nuts, strut clamps, box and panel mounting, and hanger hardware. At 2 inches of length it suits assemblies where you're stacking a bracket plus channel, or need thread sticking through for a nut. For thin single-layer sheet metal, a shorter 1/4-20 leaves less excess thread to deal with.
5) Will a 1/4-20 x 2 inch bolt be too long for my application?
Possibly. Two inches is the grip plus thread length under the head, and a serrated flange bolt is meant to seat flat against the work, so any excess simply protrudes past the nut. If your total stack-up is under about an inch, you'll have a lot of thread hanging out and you're better off with a shorter 1/4-20 flange bolt. Where the 2 inch length pays off is bracket-plus-channel stack-ups or anywhere you need thread through for a channel nut or locknut.
6) What is the part number to reorder these Metallics flange bolts?
Order by manufacturer part number JG5HSF142 from Metallics. That number covers the 1/4-20 x 2 inch indented hex head serrated flange bolt in the 100-count jar, and it is the only configuration that part number refers to, so there is no size or finish option to specify alongside it.
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Does the Metallics JG5HSF142 come with a warranty?
Absolutely. The Metallics JG5HSF142 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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