Bolts 3/8-16 X 3 G5 Hxbt St-zn M (Jar 50)
Features
- A cap screw made from medium carbon steel and heat-treated
- Used to mount motor to machinery. Also popular in automotive and truck repair
Additional Notes
- Other sizes and quantities available by request
Manufacturer Resources
Product Specs
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Country Of Origin:
- United States
- Division:
- Electrical H1
- Fastener Head Height:
- 15/64 in.
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 0.551 - 0.562 in.
- Fastener Height:
- 0.226 - 0.243
- Fastener Length:
- 3
- Fastener Width:
- 0.628 - 0.650
- Grade:
- 5
- Hardness:
- Rockwell C19-30
- Language Code:
- EN
- Material Standard:
- AISI 1008 - 1026
- Order Minimum Imperial:
- 50
- Order Minimum Uom Imperial:
- EA
- Outside Diameter:
- 0.3690 - 0.3750 IN
- Pack Type:
- Jar
- Product Group:
- Fasteners
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 105000 psi minimum
- Thread Per Inch:
- 16
- Thread Standard:
- ASME B18.2.1-2012
- Voltage Rating:
- Zinc Chromate
- Wrenching Height:
- 0.16
- Yield Strength:
- 105000 psi minimum
- Department:
- Electrical
- Product Subgroup:
- Bolts
- Product Type:
- Hexagonal Bolt
- Type2:
- Hexagonal Bolt
- Series:
- G5HC and JG5HC
- Product Finish:
- Zinc
- Product Details:
- Hexagonal Bolt
- Product Material:
- Steel
Metallics JG5HC26D – Frequently Asked Questions
1) What thread and size is the Metallics JG5HC26D hex bolt, and what nut will it take?
The JG5HC26D is a 3/8 inch diameter bolt, 3 inches long, with 16 threads per inch. Measured body diameter runs 0.3690 to 0.3750 inch. Threads are made to ASME B18.2.1-2012, so it mates with any standard 3/8-16 nut or tapped hole in that thread series.
2) Is a Grade 5 bolt strong enough for mounting a motor to a base or frame?
Yes, and that is the intended use for this bolt. Grade 5 medium carbon steel, heat treated to Rockwell C19-30, with 105,000 psi minimum tensile and yield strength. That is the normal spec for motor mounting, machinery bases, and automotive or truck repair work. If your drawing calls out Grade 8 or ASTM A325 structural bolting, this is not a substitute.
3) Can I use the Metallics JG5HC26D on a federal or Buy American funded job?
No. This bolt is flagged as not Buy American compliant and not ARRA compliant, even though country of origin is listed as the United States. For a job with domestic sourcing requirements written into the contract, you need a fastener carrying the compliance designation.
4) Will a zinc plated bolt hold up outdoors or in a damp mechanical room?
The finish is zinc on steel, which handles indoor, mechanical room, and sheltered conditions. It is a plated coating, not stainless, so in constant wet, coastal, or chemical exposure it will eventually corrode. For those openings go to stainless or hot dip galvanized hardware instead.
5) How is the Metallics JG5HC26D packaged, and what is the minimum I can buy?
It ships in a jar of 50 pieces, and 50 each is the order minimum. The jar pack is the reason for the J prefix on the part number; the same bolt in the G5HC series is the bulk packaging. Other sizes and quantities are available by request.
6) Is this 3/8-16 hex cap screw fully threaded, and how much grip length do I get?
It is a hex cap screw with an unthreaded shank below the head, not a fully threaded bolt. Overall length is 3 inches under the head, so stack your material thickness plus washers and nut within that. If you need thread engagement the full length of the fastener, specify a fully threaded tap bolt instead.
7) What clearance hole should I drill for a 3/8-16 hex bolt like this?
Body diameter measures 0.3690 to 0.3750 inch, so a 7/16 inch (0.4375) hole gives a normal clearance fit and 25/64 inch is the close fit. Allow room for the head too: it needs 0.562 inch across flats plus socket clearance at the bearing surface.
8) What steel is this Grade 5 bolt made from?
Medium carbon steel to AISI 1008-1026, heat treated. That combination is what gets it to Grade 5 strength at Rockwell C19-30 hardness. It is a carbon steel fastener, so it is magnetic and it needs the zinc plating for corrosion protection.
How fast can I get the Metallics JG5HC26D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 JG5HC26D come with a warranty?
Absolutely. The Metallics JG5HC26D is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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