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Bolts 3/8-16 x 3 G8 HXBT St-zn (Jar 50)
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:
- 4-Jan in.
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 0.551 - 0.562 in.
- Fastener Height:
- 0.226 - 0.243
- Fastener Length:
- 3
- Fastener Width:
- 0.620 - 0.650
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Grade:
- 8
- Hardness:
- Rockwell C33-39
- Language Code:
- EN
- Material Standard:
- AISI 1021 - 1045
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Gr_8_Hex_Bolt_St-Zn.pdf
- Order Minimum Imperial:
- 50
- Order Minimum Uom Imperial:
- EA
- Outside Diameter:
- 0.3690 - 0.3750 IN
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Product Height:
- 7.25 in
- Product Length:
- 4.5 in
- Product Weight:
- 2295 g
- Product Width:
- 114.3 MM
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 150000 psi minimum
- Thread Per Inch:
- 16
- 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 JG8HC26 – Frequently Asked Questions
1) Is the Metallics JG8HC26 bolt a coarse or fine thread, and what nut will it take?
It is a 3/8 inch diameter hex bolt at 16 threads per inch, so it mates with any 3/8-16 nut or tapped hole of the same pitch. Measured shank outside diameter runs 0.3690 to 0.3750 inch. If your existing hardware is a finer pitch, these will not thread in.
2) How strong is a Grade 8 hex bolt compared with a Grade 5?
Grade 8 here means 150,000 psi minimum tensile and 130,000 psi minimum yield, with a hardness of Rockwell C33-39. That is the step up you take when a Grade 5 will not carry the load, which is exactly what Metallics calls out for automotive and fleet work. The bolt is medium carbon steel, heat treated, to AISI 1021-1045.
3) Can I use these on a Buy American or ARRA funded job?
No. The JG8HC26 Grade 8 hex bolt is not Buy American compliant and is not ARRA compliant, with country of origin listed as multiple. For a federally funded project with domestic sourcing requirements you will need a domestically produced fastener.
4) How many bolts come in a jar of Metallics JG8HC26?
Fifty bolts per jar, and 50 each is the order minimum. The jar pack is the reason the JG prefix exists in the G8HC and JG8HC series, and the packed jar weighs about 2,295 g. Metallics notes other sizes and quantities are available by request.
5) Will a zinc plated Grade 8 bolt hold up outdoors or on a rooftop unit?
The plating is zinc over steel, which handles indoor and normally dry service and gives moderate protection in covered outdoor use. For sustained wet, coastal, or washdown exposure, zinc plated carbon steel is not the right call, go to a hot dip galvanized or stainless fastener instead. Metallics lists this one for electrical, plumbing, and HVAC work.
6) Is this a hex cap screw or a hex bolt?
Metallics describes the JG8HC26 as a cap screw made from medium carbon steel and heat treated, catalogued as a hex bolt at 3/8-16 by 3 inches. For ordering purposes treat hex cap screw and hex bolt as the same item here, the identifying details are the Grade 8 marking, zinc plating, and the JG8HC26 part number.
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Does the Metallics JG8HC26 come with a warranty?
Absolutely. The Metallics JG8HC26 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 JG8HC26?
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