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Bolts 5/8-11 x 4 G5 HXBT St-zn (Box 25)
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
- Country Of Origin:
- United States
- Division:
- Electrical H1
- Fastener Head Height:
- 25/64 in.
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 0.922 - 0.938 in.
- Fastener Height:
- 0.378 - 0.403
- Fastener Length:
- 4
- Fastener Width:
- 1.051 - 1.083
- 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:
- 25
- Order Minimum Uom Imperial:
- EA
- Outside Diameter:
- 0.6170 - 0.6250 IN
- Pack Type:
- Box
- Product Group:
- Fasteners
- Product Height:
- 6 in
- Product Length:
- 7.25 in
- Product Weight:
- 10 lbs
- Product Width:
- 6.25 in
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 105000 psi minimum
- Thread Per Inch:
- 11
- Thread Standard:
- ASME B18.2.1-2012
- Wrenching Height:
- 0.269
- 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 G5HC72D – Frequently Asked Questions
1) What thread size and pitch is the Metallics G5HC72D hex bolt, and will it take a standard 5/8-11 nut?
It's a 5/8-11 coarse thread bolt, 4 inches long, with 11 threads per inch cut to ASME B18.2.1-2012. Any standard 5/8-11 UNC nut or tapped hole will take it. Measured shank diameter runs 0.6170 to 0.6250 inch, so it drops through a 11/16 inch clearance hole.
2) Is a Grade 5 bolt strong enough to mount a motor to a base, or do I need Grade 8?
Grade 5 medium carbon steel, heat treated, is the normal choice for mounting motors to machinery and it's what this bolt is made for. Minimum tensile and yield are both listed at 105,000 psi, with hardness Rockwell C19-30. Go to Grade 8 only where the engineer's drawing calls for it or you're dealing with high shock loading; for standard motor feet and equipment bases Grade 5 is the spec.
3) Does the Metallics G5HC72D meet Buy American and ARRA requirements for a federal or public project?
Yes. It's flagged compliant for both Buy American and ARRA, and country of origin is the United States. That covers the documentation most government, school district, and federally funded jobs ask for on fasteners.
4) What wrench or socket size fits a 5/8-11 Grade 5 hex cap screw like the G5HC72D?
Head width across flats measures 0.922 to 0.938 inch, so a 15/16 inch socket or wrench is the size you want. Head height is 25/64 inch, with a wrenching height of 0.269 inch, which matters if you're working in a counterbore or against a recessed flange.
5) Will a zinc plated steel bolt hold up outdoors or in a wet location?
The finish is zinc plating over steel, which is a general indoor and sheltered-use coating. It handles damp interiors, mechanical rooms and equipment bases fine, but direct weather exposure, washdown, or coastal air will eventually take the plating and start rusting the steel. For permanent exterior or corrosive duty, use a stainless or hot dip galvanized 5/8-11 bolt instead.
6) How many 5/8-11 x 4 bolts come in a box, and can I buy just a few?
They ship as a box of 25, and 25 each is the order minimum, so partial counts aren't broken out. Metallics does offer other lengths and quantities in the G5HC and JG5HC series by request if 4 inch or 25 pieces isn't what your job needs.
7) What steel is the Metallics Grade 5 hex bolt made from?
Material standard is AISI 1008-1026 steel, heat treated to Grade 5 properties, Rockwell C19-30. That's a medium carbon range, which is why it takes the heat treat and holds 105,000 psi minimum tensile. It also means it welds poorly and shouldn't be tack welded in place.
How fast can I get the Metallics G5HC72D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 G5HC72D come with a warranty?
Absolutely. The Metallics G5HC72D 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 G5HC72D?
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