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Bolts 1/4-20 X 4 G5 Hxbt St-zn (Jar 100)
Features
- A cap screw made from medium carbon steel and heat-treated
- Used to mount motor to machinery. Also popular in automotive and truck repair
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Division:
- Electrical H1
- Fastener Head Height:
- May-32 in.
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 0.428 - 0.438 in.
- Fastener Height:
- 0.150 - 0.163
- Fastener Length:
- 4
- Fastener Width:
- 0.488 - 0.505
- 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:
- 0.2450 - 0.2500 IN
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 7.25 in
- Product Length:
- 4.5 in
- Product Weight:
- 2694 g
- Product Width:
- 114.3 MM
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 105000 psi minimum
- Thread Per Inch:
- 20
- Thread Standard:
- ASME B18.2.1-2012
- Voltage Rating:
- Zinc Chromate
- Wrenching Height:
- 0.106
- 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 JG5HC8 – Frequently Asked Questions
1) Is a Grade 5 zinc hex bolt strong enough for mounting a motor to machinery?
Grade 5 is the medium carbon, heat treated class, rated at 105,000 psi minimum tensile and hardness of Rockwell C19-30, and motor mounting is exactly the duty Metallics calls out for the G5HC and JG5HC series. For higher clamp loads than that you move up to Grade 8; for non-structural hanging and trim work a plain Grade 2 bolt is the cheaper call.
2) Will these Metallics bolts meet a Buy American or ARRA requirement on a public job?
No. The JG5HC8 is not Buy American compliant and is not ARRA compliant, and country of origin is listed as multiple. If your contract carries a domestic-content clause, this is the wrong part number and you need a domestic Grade 5 bolt instead.
3) What wrench or socket size fits the Metallics JG5HC8 1/4-20 hex bolt?
Across the flats the hex head measures 0.428 to 0.438 inch, so a 7/16 inch wrench or socket is the size to grab. That is the standard hex size for a 1/4 inch bolt, so it matches what is already in most electricians' and mechanics' sets.
4) Can zinc plated Grade 5 bolts be used outdoors or in a damp mechanical room?
The finish is zinc plating over steel, which is a mild corrosion coating meant for dry to occasionally damp indoor service: mechanical rooms, equipment rooms, panel and strut work. It is not a marine or sustained wet-exposure coating. For direct weather, roof curbs, or chemical exposure, specify hot dip galvanized or stainless instead.
5) How many bolts come in a jar of Metallics JG5HC8, and can I buy fewer?
It ships as a jar of 100, and the jar is the minimum order unit, so 100 pieces is the smallest quantity. The jar packaging is what keeps the count on a service van honest rather than loose in a bucket. Metallics also makes other sizes and quantities in this series available on request.
6) What trades actually use these 1/4-20 Grade 5 hex cap screws?
Metallics targets the electrical, plumbing, and heating and air conditioning trades with the G5HC and JG5HC bolts, and they are also common in automotive and truck repair. In practice that means equipment and motor mounting, strut and channel assembly, and general MRO repair work where a plated medium carbon bolt is called for.
7) What steel are Metallics Grade 5 hex bolts made from?
They are made from steel in the AISI 1008 to 1026 range, heat treated to reach Grade 5 properties, with yield also stated at 105,000 psi minimum. That is a standard medium carbon spec for a cap screw and it is why the bolt holds torque rather than stretching like a low-grade fastener.
How fast can I get the Metallics JG5HC8 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 JG5HC8 come with a warranty?
Absolutely. The Metallics JG5HC8 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 JG5HC8?
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