Metallics G8HC75234 Bolts 3/4-...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$56.94
$9.64
Metallics G8HC75234 Bolts 3/4-10 X 2-3/4 G8 Hxbt St-Yzn (Box 25)

Metallics G8HC75234 Bolts 3/4-10 X 2-3/4 G8 Hxbt St-Yzn (Box 25)

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Model: G8HC75234
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$56.94
$9.64
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Bolts 3/4-10 X 2-3/4 G8 Hxbt St-Yzn (Box 25)

  • Features

    • Used in automotive and fleet industries, where greater tensile strength is required than can be met by a Grade-5
    • A cap screw made from medium carbon steel and heat-treated

  • 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:
2-Jan in.
Fastener Head Type:
Hex
Fastener Head Width:
1.100 - 1.125 in.
Fastener Height:
0.455 - 0.483
Fastener Length:
2/3/04
Fastener Width:
1.240 - 1.299
Grade:
8
Hardness:
Rockwell C33-39
Language Code:
EN
Material Standard:
AISI 1021 - 1045
Order Minimum Imperial:
25
Order Minimum Uom Imperial:
EA
Outside Diameter:
0.7410 - 0.7500 IN
Pack Type:
Box
Product Group:
Fasteners
Sub Division:
Electrical-E H2
Tensile Strength:
150000 psi minimum
Thread Per Inch:
10
Yield Strength:
130000 psi minimum
Department:
Electrical
Product Subgroup:
Bolts
Product Type:
Hexagonal Bolt
Type2:
Hexagonal Bolt
Series:
G8HC and JG8HC
Product Finish:
Zinc
Product Details:
Hexagonal Bolt
Product Material:
Steel

Metallics G8HC75234 – Frequently Asked Questions

1) Is the Metallics G8HC75234 bolt a Grade 8, and how much stronger is that than a Grade 5?
Grade 8, with a minimum tensile strength of 150,000 psi and a minimum yield of 130,000 psi. That is the step up you take when a Grade 5 cap screw will not carry the load, which is why these get used in automotive and fleet work. Material is medium carbon steel, heat treated, hardness Rockwell C33-39.
2) What thread does the 3/4 inch Metallics G8HC75234 hex bolt have, coarse or fine?
Coarse. It is 3/4-10, meaning 10 threads per inch, which is standard UNC for a 3/4 inch bolt. If your tapped hole or nut is 3/4-16 fine thread, this will not thread in.
3) Will the G8HC75234 bolt slip through a 3/4 inch drilled hole?
Tight. The shank outside diameter runs 0.7410 to 0.7500 inch, so a hole drilled at exactly 3/4 inch leaves essentially no clearance. For bolted steel connections, drill or punch oversize (13/16 inch is the usual clearance hole for a 3/4 inch bolt) unless the design calls for a close-tolerance fit.
4) Can I use the Metallics G8HC75234 on a federally funded or Buy American job?
No. It is not Buy American compliant and not ARRA compliant, and the country of origin is listed as multiple. If your project has domestic-sourcing requirements, you need a documented domestic Grade 8 fastener instead.
5) Do I need a hardened nut and washer with a Grade 8 bolt like this?
Yes, and neither is included. The G8HC75234 is supplied as a bolt only, so pair it with a Grade 8 (or Grade C) 3/4-10 nut and hardened washers. Putting a Grade 8 bolt at 150,000 psi tensile against a lower grade nut means the nut strips first and you never reach the clamp load you specified the bolt for.
6) What wrench or socket size fits the head on this Metallics Grade 8 hex bolt?
The hex head measures 1.100 to 1.125 inches across the flats, so a 1-1/8 inch socket or wrench is the right tool. Head type is a standard hex, not a flange or socket head.
7) Is the zinc finish on these Grade 8 bolts good enough for outdoor or damp locations?
The finish is zinc plating over steel, which handles indoor service and incidental moisture but is not a marine or long-term exposed-weather coating. For a wet rooftop, pool, or coastal install, go to a hot-dip galvanized or stainless fastener instead. Keep in mind stainless will not give you Grade 8 strength numbers.
8) How many bolts come in a box of Metallics G8HC75234, and can I buy just a few?
These ship as a box of 25, and 25 each is the order minimum, so you are buying the full box rather than loose pieces. Metallics does offer other sizes and quantities in the G8HC and JG8HC series by request.
9) What steel are these Metallics Grade 8 cap screws made from?
Medium carbon steel in the AISI 1021 to 1045 range, heat treated to reach Grade 8 properties, finishing at Rockwell C33-39. That is a through-hardened fastener, so do not weld it or cut threads with heat, you will destroy the temper.
How fast can I get the Metallics G8HC75234 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 G8HC75234 come with a warranty?
Absolutely. The Metallics G8HC75234 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 G8HC75234?
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
Why buy the Metallics G8HC75234 from ZenSupply?
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