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Bolts 3/8-24 X 1 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:
- 15/64 in.
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 0.551 - 0.562 in.
- Fastener Height:
- 0.226 - 0.243
- Fastener Length:
- 1
- Fastener Width:
- 0.628 - 0.650
- 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:
- 0.3690 - 0.3750 IN
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 5.75 in
- Product Length:
- 3.5 in
- Product Weight:
- 1905 g
- Product Width:
- 88.9 MM
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 120000 psi minimum
- Thread Per Inch:
- 24
- Thread Standard:
- ASME B18.2.1-2012
- Voltage Rating:
- Zinc Chromate
- Wrenching Height:
- 0.16
- 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 JG5HCF45 – Frequently Asked Questions
1) Is the Metallics JG5HCF45 bolt coarse or fine thread?
Fine thread. The JG5HCF45 is a 3/8-24 hex bolt, 24 threads per inch, which is UNF rather than the coarse 3/8-16 UNC. It will not thread into a 3/8-16 nut or tapped hole, so match it to fine-thread hardware only.
2) Is a Grade 5 hex bolt strong enough for mounting a motor to machinery?
Yes, that is the intended use for this bolt. Grade 5 medium carbon steel, heat treated, with 120,000 psi minimum tensile and 92,000 psi minimum yield strength, hardness Rockwell C25-34. That is the usual spec for motor mounting and automotive or truck repair work. If your drawing calls out Grade 8, this will not substitute.
3) What wrench or socket size fits the head of this 3/8-24 Grade 5 hex bolt?
The hex head measures 0.551 to 0.562 inch across the flats, which is the standard 9/16 inch wrench or socket size for a 3/8 inch bolt. Head height is 15/64 inch, with a wrenching height of 0.16 inch, so a thin-wall socket still gets full purchase in a tight pocket.
4) How long is the JG5HCF45 bolt and how thick a stack can it clamp?
Shank length is 1 inch measured under the head, with an outside thread diameter of 0.3690 to 0.3750 inch. Subtract your nut height and any washers from that 1 inch to get usable grip, so it suits thin to moderate stack-ups. For anything deeper you need a longer length in the same G5HC/JG5HC series.
5) Will a zinc plated Grade 5 bolt hold up outdoors or in a damp mechanical room?
The finish is zinc plating over steel, which handles indoor and sheltered damp conditions. It is not stainless, so direct weather exposure, washdown, or coastal salt air will eventually take it. For those openings specify a stainless or hot dip galvanized fastener instead.
6) How many bolts come in a jar of Metallics JG5HCF45 and can I buy fewer?
Packaging is a jar of 100, and 100 count is the order minimum, so it ships as a full jar rather than loose pieces. The jar weighs 1905 g. Metallics does offer other sizes and quantities in this bolt family by request.
7) Does this hex bolt meet a standard dimensional spec so it interchanges with other brands?
Dimensions follow ASME B18.2.1-2012 and the steel is AISI 1008-1026, so head and thread geometry interchanges with any other B18.2.1 Grade 5 hex bolt of the same 3/8-24 x 1 size. Useful if you are standardizing a parts crib across suppliers.
8) Can I use the JG5HCF45 bolt on a federally funded or Buy American job?
Metallics lists this Grade 5 hex bolt as both ARRA compliant and Buy American compliant. Country of origin is recorded as multiple, so if your contract requires a single named origin on the submittal, confirm the origin of the specific lot you receive.
How fast can I get the Metallics JG5HCF45 delivered?
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Does the Metallics JG5HCF45 come with a warranty?
Absolutely. The Metallics JG5HCF45 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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