Metallics JG8HC45 Bolts 1/2-13...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$52.09
$1.93
Metallics JG8HC45 Bolts 1/2-13 X 3/4 G8 Hxbt St-zn (Jar 100)

Metallics JG8HC45 Bolts 1/2-13 X 3/4 G8 Hxbt St-zn (Jar 100)

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Model: JG8HC45
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$52.09
$1.93
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Bolts 1/2-13 X 3/4 G8 Hxbt St-zn (Jar 100)

  • 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:
Nov-64 in.
Fastener Head Type:
Hex
Fastener Head Width:
0.428 - 0.438 in.
Fastener Height:
0.150 - 0.163
Fastener Length:
4-Mar
Fastener Width:
0.484 - 0.505
Grade:
8
Hardness:
Rockwell C33-39
Language Code:
EN
Material Standard:
AISI 1021 - 1045
Order Minimum Imperial:
100
Order Minimum Uom Imperial:
CT
Outside Diameter:
0.2450 - 0.2500 IN
Pack Type:
Jar
Product Group:
Fasteners
Sub Division:
Electrical-E H2
Tensile Strength:
150000 psi minimum
Thread Per Inch:
13
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 JG8HC45 – Frequently Asked Questions

1) What thread size and length is the Metallics JG8HC45 hex bolt?
It's a 1/2-13 x 3/4 inch hex cap screw, so 1/2 inch nominal diameter with 13 threads per inch (UNC coarse) and a 3/4 inch length under the head. It'll thread into any 1/2-13 tapped hole or take a standard 1/2-13 coarse hex nut.
2) Is a Grade 8 bolt strong enough to replace a Grade 5 on fleet equipment?
Yes, and that's the usual reason to buy it. The JG8HC45 is a Grade 8 medium carbon steel cap screw, heat treated, rated 150,000 psi minimum tensile and 130,000 psi minimum yield, with a hardness of Rockwell C33-39. That's a step up from Grade 5 in both tensile and yield, which is why these get used on automotive and fleet work where Grade 5 won't carry the load.
3) Can I use these bolts on a federally funded or Buy American project?
No. The JG8HC45 is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. If your contract carries a domestic sourcing clause, you'll need a documented domestic fastener instead.
4) How is the JG8HC45 bolt packaged and what is the minimum order?
These ship in a jar of 100 pieces, and 100 count is the order minimum. Good fit for a shop bench or a service truck bin where you're pulling single fasteners rather than ordering by the box for one job. Other sizes and quantities can be arranged by request.
5) Will a zinc plated Grade 8 bolt hold up outdoors or in a damp mechanical room?
The finish is zinc plating over steel, which handles indoor and sheltered outdoor service and general shop conditions. It is not stainless. For constant wet exposure, salt spray, or direct weather on a roof or exterior frame, plan on a hot dip galvanized or stainless fastener instead, because zinc plating is a thin sacrificial coating.
6) Is a 3/4 inch long bolt long enough for my application?
At 3/4 inch under the head on a 1/2-13 thread, this is a short cap screw. Count your grip: material thickness plus washer plus enough thread engagement in the nut or tapped hole. On a 1/2 inch bolt you want roughly a diameter's worth of thread engaged, so 3/4 inch total length only works on thin stacks or tapped blind holes. Thicker joints need a longer 1/2-13 Grade 8 screw.
7) What steel are these Grade 8 hex bolts made from?
Medium carbon steel in the AISI 1021 to 1045 range, heat treated to reach the Grade 8 property class. That's what gets it to Rockwell C33-39 hardness. Worth knowing if you're welding nearby or specifying for a shop that controls fastener material on spec sheets.
8) What wrench or socket do I need for this hex bolt head?
It's a standard hex head cap screw in 1/2-13, which takes a 3/4 inch socket or wrench across the flats. Plain hex head, no washer face flange or drive recess.
How fast can I get the Metallics JG8HC45 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 JG8HC45 come with a warranty?
Absolutely. The Metallics JG8HC45 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 JG8HC45?
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 JG8HC45 from ZenSupply?
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