Metallics JG5HC15 Bolts 5/16-1...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$51.01
$1.93

Metallics JG5HC15 Bolts 5/16-18 X 2-1/2 G5 Hxbt St-zn (Jar 100)

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Model: JG5HC15
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$51.01
$1.93
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Bolts 5/16-18 X 2-1/2 G5 Hxbt St-zn (Jar 100)
  • Additional Notes

    • Other sizes and quantities available by request
  • Features

    • Used to mount motor to machinery. Also popular in automotive and truck repair
    • A cap screw made from medium carbon steel and heat-treated

Manufacturer Resources

Product Specs

Arra Compliant:
N
Buy American Compliant:
No
Division:
Electrical H1
Fastener Head Height:
13/64 in.
Fastener Head Type:
Hex
Fastener Head Width:
0.489 - 0.500 in.
Fastener Height:
0.195 - 0.211
Fastener Length:
2/1/02
Fastener Width:
0.557 - 0.577
Field Application:
Electrical, Plumbing, Heating and Air Conditioning Industries
Grade:
5
Hardness:
Rockwell C19-30
Language Code:
EN
Material Standard:
AISI 1008 - 1026
Neurspe:
https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Gr_5_Hex_Bolt_Dom_St-Zn.pdf
Order Minimum Imperial:
100
Order Minimum Uom Imperial:
JR
Outside Diameter:
0.3065 - 0.3125 IN
Pack Type:
Jar
Product Group:
Fasteners
Product Height:
7.25 in
Product Length:
4.5 in
Product Weight:
2767 g
Product Width:
114.3 MM
Sub Division:
Electrical-E H2
Tensile Strength:
105000 psi minimum
Thread Per Inch:
18
Thread Standard:
ASME B18.2.1-2012
Voltage Rating:
Zinc Chromate
Wrenching Height:
0.14
Yield Strength:
105000 psi minimum
Department:
Electrical
Product Subgroup:
Bolts
Product Type:
Hexagonal Bolt
Type2:
Hexagonal Bolt
Series:
G5HC and JG5HC
Product Finish:
Zinc
Product Details:
Hexagonal Bolt
Product Material:
Steel

Metallics JG5HC15 – Frequently Asked Questions

1) Will a 5/16-18 hex bolt thread into a 5/16-24 tapped hole?
No. The JG5HC15 is cut 18 threads per inch, which is the coarse 5/16 thread. A hole tapped 5/16-24 is fine thread and will not accept it. Check the tapped hole or the nut you are pairing it with before ordering; fine thread needs a different bolt.
2) Is a Grade 5 zinc hex bolt strong enough for mounting a motor to a base?
Yes, that is the stated use for these. The JG5HC15 is a Grade 5 cap screw in medium carbon steel, heat treated, with 105,000 psi minimum tensile and yield strength and a hardness of Rockwell C19-30. Metallics calls out motor mounting to machinery, plus automotive and truck repair, as the common applications.
3) Do Metallics JG5HC15 hex bolts meet Buy American or ARRA requirements?
No. These bolts are not Buy American compliant and are not ARRA compliant, with country of origin listed as multiple. If you are buying for a federally funded job with domestic sourcing requirements, you need a domestic-certified Grade 5 hex bolt instead.
4) Are these zinc plated bolts okay for outdoor or wet locations?
The JG5HC15 bolts are zinc plated carbon steel with a zinc chromate coating. That handles indoor mechanical rooms, damp-but-sheltered conditions, and general electrical, plumbing and HVAC service. For constant weather exposure, coastal air, or anything submerged, zinc plating is not the right choice, go to hot dip galvanized or stainless.
5) How many bolts come in a jar of Metallics JG5HC15, and can I buy fewer?
These ship as a jar of 100 pieces, and the jar is the minimum order unit, so 100 is the smallest quantity. Metallics notes other sizes and quantities in the G5HC and JG5HC series are available by request.
6) What dimensional standard do these hex bolts follow, and will they match existing hardware on my equipment?
The JG5HC15 is made to ASME B18.2.1-2012, the standard hex bolt and screw dimensional spec, with steel to AISI 1008-1026. Because head and body dimensions follow that standard, it interchanges with any other standard 5/16-18 x 2-1/2 Grade 5 hex bolt already in the equipment.
7) Is a Grade 5 hex bolt the same thing as a Grade 8, and when should I step up?
No. Grade 5 like the JG5HC15 is medium carbon steel, heat treated, rated 105,000 psi minimum tensile and yield at Rockwell C19-30. It covers most motor mounts, equipment anchoring and general MRO bolting. Grade 8 is a higher strength alloy bolt, used where the joint is highly loaded or the engineer calls it out by grade. If a drawing specifies Grade 8, a Grade 5 bolt is not a substitution.
8) Does the head height on these hex bolts matter for a tight clearance?
It can. The hex head on the JG5HC15 stands 13/64 inch tall, with about 0.14 inch of wrenching height, meaning the usable grip for a socket is less than the full head. In a counterbore or behind a shroud, measure that 13/64 inch plus socket wall before you commit.
How fast can I get the Metallics JG5HC15 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 JG5HC15 come with a warranty?
Absolutely. The Metallics JG5HC15 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 JG5HC15?
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
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