Bolts 5/16-18 X 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:
- C
- Buy American Compliant:
- C
- 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-Jan
- Fastener Width:
- 0.557 - 0.577
- Grade:
- 5
- Hardness:
- Rockwell C25-34
- 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:
- CT
- Outside Diameter:
- 0.3065 - 0.3125 IN
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 2.7 in
- Product Length:
- 3 in
- Product Weight:
- 907 g
- Product Width:
- 76.2 MM
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 120000 psi minimum
- Thread Per Inch:
- 18
- Thread Standard:
- ASME B18.2.1-2012
- Voltage Rating:
- Zinc Chromate
- Wrenching Height:
- 0.14
- Yield Strength:
- 92000 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 JG5HC19 – Frequently Asked Questions
1) Is a Grade 5 bolt strong enough for mounting a motor to machinery?
Grade 5 is the normal choice for motor mounting, and that is what this bolt is built for. It is medium carbon steel, heat treated, with 120,000 psi minimum tensile and 92,000 psi minimum yield, hardness Rockwell C25-34. That covers motor bases, equipment feet, and automotive or truck repair work. If your drawing calls for Grade 8, this will not substitute.
2) Does this hex bolt meet Buy American and ARRA requirements for a government job?
Metallics lists the JG5HC19 as both ARRA compliant and Buy American compliant. Country of origin is shown as multiple, so if your contract requires documented origin per shipment, request it with the order.
3) Is the zinc plating on this Metallics hex bolt OK for outdoor use?
The finish is zinc, a zinc chromate plating over steel. That is a mild corrosion barrier made for dry indoor and sheltered conditions, which is why it is standard on motor mounts and panel work. For wet, coastal, or buried locations, step up to hot dip galvanized or stainless instead.
4) How many bolts come in a jar of Metallics JG5HC19, and can I buy less than a full jar?
They ship 100 to a jar, and 100 count is the order minimum, so the jar is the smallest buying unit. Filled jar weight is 907 g. The JG prefix is the jar pack; the plain G5HC numbers in the same series are the bulk packaging.
5) What dimensional standard do these Grade 5 hex bolts conform to?
Thread and head geometry follow ASME B18.2.1-2012, the standard for inch square and hex bolts and screws. Steel is within AISI 1008-1026. That combination is what a spec writer is looking for when a drawing calls out a standard hex cap screw rather than a proprietary fastener.
6) Can I get this 5/16-18 bolt in a different length or a larger pack?
Yes. Metallics builds the G5HC and JG5HC line in other diameters, lengths, and quantities, available by request, so you can standardize on the same Grade 5 zinc plated hex cap screw across a range of sizes instead of mixing suppliers.
How fast can I get the Metallics JG5HC19 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 JG5HC19 come with a warranty?
Absolutely. The Metallics JG5HC19 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 JG5HC19?
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