Metallics JG8HC27 Bolts 5/8-11...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$55.31
$7.71
Metallics JG8HC27 Bolts 5/8-11 X 1-1/2 G8 Hxbt St-zn (Jar 25)

Metallics JG8HC27 Bolts 5/8-11 X 1-1/2 G8 Hxbt St-zn (Jar 25)

(No reviews yet) Write a Review

Model: JG8HC27
Selected Model is

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

$55.31
$7.71
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like
Bolts 5/8-11 X 1-1/2 G8 Hxbt St-zn (Jar 25)

  • Additional Notes

    • Other sizes and quantities available by request

  • 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

Manufacturer Resources

Product Specs

Arra Compliant:
N
Buy American Compliant:
No
Division:
Electrical H1
Fastener Head Height:
27/64 in.
Fastener Head Type:
Hex
Fastener Head Width:
0.922 - 0.938 in.
Fastener Height:
0.378 - 0.403
Fastener Length:
1/1/02
Fastener Width:
1.033 - 1.083
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:
0.6170 - 0.6250 IN
Pack Type:
Jar
Product Group:
Fasteners
Sub Division:
Electrical-E H2
Tensile Strength:
150000 psi minimum
Thread Per Inch:
11
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 JG8HC27 – Frequently Asked Questions

1) Will a Metallics JG8HC27 Grade 8 hex bolt thread into a standard 5/8-11 UNC nut?
Yes. The JG8HC27 is a 5/8 inch bolt with 11 threads per inch, which is standard 5/8-11 UNC coarse thread, so it mates with any 5/8-11 nut or tapped hole. Measured shank diameter runs 0.6170 to 0.6250 inch. For a Grade 8 joint, pair it with a Grade 8 (or higher) nut so the nut does not become the weak link.
2) How much stronger is a Grade 8 bolt than a Grade 5 in the same 5/8-11 size?
The JG8HC27 is a Grade 8 cap screw of medium carbon steel, heat treated, with a minimum tensile strength of 150,000 psi and minimum yield of 130,000 psi. A Grade 5 of the same diameter is rated 120,000 psi tensile. That gap is why Grade 8 is specified on automotive, fleet and heavy equipment joints where a Grade 5 will not carry the preload.
3) Can I use the Metallics JG8HC27 on a federally funded or Buy American job?
No. The JG8HC27 is marked as not Buy American compliant and not ARRA compliant, with country of origin listed as multiple. If your contract carries a domestic sourcing clause, you need a US made Grade 8 fastener instead.
4) Is a zinc plated Grade 8 bolt OK for outdoor or damp locations?
The JG8HC27 is steel with a zinc finish. Zinc plating gives moderate corrosion resistance, fine for indoor, enclosed, and sheltered equipment work. For sustained outdoor exposure, washdown, or coastal air, zinc plated Grade 8 will eventually rust at the threads and wear points. Note too that high strength plated fasteners should not be hot dip galvanized or re-plated after the fact.
5) How many bolts come in a jar of Metallics JG8HC27 and can I buy just a few?
JG8HC27 ships as a jar of 25 pieces, and 25 each is the order minimum, so the jar is the smallest unit. Metallics notes other sizes and quantities are available by request if 1-1/2 inch length or 25 count does not suit the job.
6) What steel and hardness does the Metallics Grade 8 hex cap screw run, and can it be welded or re-heat-treated?
Material is medium carbon steel in the AISI 1021 to 1045 range, heat treated to Rockwell C33-39. That hardness is the whole point of the fastener, so do not weld it, flame cut it, or re-heat-treat it. Any of those destroys the temper and drops it below Grade 8 strength. If the joint needs welding, use a weldable low carbon stud and not this cap screw.
7) How do I tell a Grade 8 bolt apart from Grade 5 once it is installed?
Read the head. A Grade 8 hex cap screw like the JG8HC27 carries six radial lines on the head; Grade 5 carries three. On a mixed fleet or equipment repair, that marking is how you confirm you are replacing like with like before you torque anything down.
How fast can I get the Metallics JG8HC27 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 JG8HC27 come with a warranty?
Absolutely. The Metallics JG8HC27 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 JG8HC27?
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 JG8HC27 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!