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Bolts 1/4-20 x 1-3/4 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:
- C
- Buy American Compliant:
- C
- 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:
- 1/3/04
- 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
- Product Height:
- 4.57 in
- Product Length:
- 3 in
- Product Weight:
- 1275 g
- Product Width:
- 76.2 MM
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 150000 psi minimum
- Thread Per Inch:
- 20
- 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 JG8HC71 – Frequently Asked Questions
1) Is Grade 8 stronger than a Grade 5 bolt, and when do I actually need it?
Yes. The JG8HC71 is a Grade 8 medium carbon steel cap screw, heat treated, with 150,000 psi minimum tensile and 130,000 psi minimum yield. Grade 5 tops out well below that. Use Grade 8 on automotive and fleet work, equipment mounting, and any joint where the engineer called out a higher tensile class. For general light-duty bracket or enclosure work, a Grade 5 or Grade 2 bolt is usually all the spec requires.
2) Are these zinc plated bolts OK for outdoor or wet locations?
Finish is zinc plating over steel, which is a general corrosion coating for dry and sheltered conditions. It holds up on fleet and indoor equipment work, but zinc plated Grade 8 is not the choice for direct saltwater or continuous wet exposure. If the job is marine or washdown, specify a stainless or hot dip galvanized fastener instead, keeping in mind stainless does not reach Grade 8 strength levels.
3) How many bolts come in a jar, and can I order a smaller quantity?
These ship as a jar of 100 pieces, and 100 count is the order minimum, so the jar is the smallest unit. Metallics also offers other sizes and quantities in the G8HC and JG8HC series by request.
4) What steel and hardness are the Metallics JG8HC71 bolts, for a submittal?
Material is medium carbon steel to AISI 1021 through 1045, heat treated to Rockwell C33-39. Strength figures for the submittal are 150,000 psi minimum tensile and 130,000 psi minimum yield at Grade 8.
5) Do these Metallics Grade 8 bolts meet Buy American and ARRA requirements on a public job?
The JG8HC71 is flagged compliant for both Buy American and ARRA in the manufacturer data, with country of origin listed as China. On federally funded work, hand both of those facts to your specifier, since domestic-content thresholds vary by program.
6) Is JG8HC71 the same bolt as the G8HC version?
Both sit in the Metallics G8HC and JG8HC series of Grade 8 hex cap screws. The J prefix identifies the jar pack, which is how JG8HC71 ships, 100 pieces to the jar. The bolt itself is the same 1/4-20 x 1-3/4 Grade 8 zinc plated cap screw; the packaging is what changes.
How fast can I get the Metallics JG8HC71 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 JG8HC71 come with a warranty?
Absolutely. The Metallics JG8HC71 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 JG8HC71?
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