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Bolt 3/8-16 x 1-1/4 Grade 9 Hx Cap (Jar 25)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
- Product Subgroup:
- Bolts
Metallics JG9HC13 – Frequently Asked Questions
1) What size and thread is the Metallics JG9HC13 hex cap bolt?
The Metallics JG9HC13 is a 3/8-16 x 1-1/4 inch hex cap bolt. That is a 3/8 inch diameter shank with 16 threads per inch (UNC coarse thread) and a 1-1/4 inch length under the head. It mates with standard 3/8-16 nuts and tapped 3/8-16 holes.
2) What does Grade 9 mean on a hex cap bolt, and when do I need it instead of Grade 5 or Grade 8?
Grade marks describe the strength class of the fastener. The JG9HC13 is a Grade 9 hex cap bolt, which sits above the common Grade 5 and Grade 8 structural bolts in tensile strength. Use it where a joint sees high clamp load, vibration, or shock and a lower grade has been stretching or backing out. For general bracket and strut work, a Grade 5 is usually all the drawing calls for.
3) Is the Metallics JG9HC13 a hex head bolt or a socket cap screw?
It is a hex cap bolt, driven with a wrench or socket on an external six-sided head, not an internal hex socket. For a 3/8-16 hex cap the head takes a 9/16 inch wrench. If your prep is counterbored for a flush socket head, this is the wrong fastener.
4) Do I need to order nuts and washers separately with these bolts?
Yes. The jar contains the JG9HC13 bolts only, so hex nuts and flat or lock washers get ordered separately. Anything you add has to match the 3/8-16 thread and 3/8 inch diameter.
5) What is the exact part number to order for the Metallics 3/8-16 x 1-1/4 Grade 9 hex cap bolt?
Order Metallics JG9HC13. The J prefix indicates the jar pack of 25, G9 the grade, and HC the hex cap style. There is a single configuration under that number, so there is no finish or length option to specify.
6) Can I use these Metallics bolts for electrical strut and equipment mounting?
That is the intent. Metallics catalogs the JG9HC13 as an electrical fastener, and a 3/8-16 x 1-1/4 hex cap is the common size for bolting channel, brackets, panel backs, and equipment feet where a 3/8 tapped hole or nut is used.
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Can I return it if it doesn’t work for me?
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Does the Metallics JG9HC13 come with a warranty?
Absolutely. The Metallics JG9HC13 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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