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Bolts 3/8-16 X 3-1/2 G5 Hxbt St-zn (Jar 50)
Features
- Used to mount motor to machinery. Also popular in automotive and truck repair
- 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:
- 15/64 in.
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 0.551 - 0.562 in.
- Fastener Height:
- 0.226 - 0.243
- Fastener Length:
- 3/1/02
- Fastener Width:
- 0.628 - 0.650
- Field Application:
- Electrical, Plumbing, Heating and Air Conditioning Industries
- Grade:
- 5
- Hardness:
- Rockwell C19-30
- Language Code:
- EN
- Material Standard:
- AISI 1008 - 1026
- Neurspe:
- https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Gr_5_Hex_Bolt_Dom_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:
- 2681 g
- Product Width:
- 114.3 MM
- 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 JG5HC27 – Frequently Asked Questions
1) Is the JG5HC27 bolt coarse thread, and will it take a standard 3/8-16 nut?
It is 3/8-16, which is 16 threads per inch, the coarse (UNC) pitch for 3/8 inch diameter. Any standard 3/8-16 hex nut, coupling nut, or tapped 3/8-16 hole will accept it. The shank measures 0.3690 to 0.3750 inch outside diameter, and threading is made to ASME B18.2.1-2012.
2) Do Metallics JG5HC27 grade 5 bolts qualify for a Buy American or ARRA funded job?
No. These are listed as not Buy American compliant and not ARRA compliant, with country of origin shown as multiple. If you are working a federally funded project with domestic sourcing requirements, you need a domestic grade 5 hex bolt instead.
3) What wrench or socket size fits the hex head on the Metallics JG5HC27 3/8 inch grade 5 bolt?
The hex head measures 0.551 to 0.562 inch across the flats, which is a 9/16 inch wrench or socket. Head height is 15/64 inch, so clearance under a bracket or motor foot needs to allow for that.
4) Can zinc plated grade 5 bolts be used outdoors or in a damp mechanical room?
The JG5HC27 is steel with a zinc finish, which handles indoor and sheltered mechanical rooms, equipment rooms, and shop use. Zinc plating is a sacrificial coating, not stainless, so for direct weather exposure, wet pits, or coastal installations a stainless or hot dip galvanized fastener is the better call.
5) Will a 3-1/2 inch long bolt be long enough for my assembly?
The JG5HC27 is a 3/8-16 x 3-1/2 inch bolt, so the 3-1/2 inches is the shank from under the head. Add up your material thicknesses plus washers and the nut, and leave a couple of threads protruding past the nut. Note that partially threaded hex bolts carry an unthreaded shoulder near the head, so if you need thread engagement right up to the head, specify a fully threaded cap screw instead.
6) How many bolts come in a jar of Metallics JG5HC27?
Fifty bolts per jar, and 50 each is the order minimum, so you buy by the jar rather than the piece. Metallics also notes other sizes and quantities are available by request.
7) Is this a general purpose bolt or is it specific to electrical work?
It is a general purpose grade 5 hex bolt. Metallics lists the field application as the electrical, plumbing, heating and air conditioning industries, and the same bolt is used for mounting motors to machinery and in automotive and truck repair. Nothing about it is electrical-specific beyond the trades that stock it.
8) What steel are Metallics grade 5 hex bolts made from?
Carbon steel to AISI 1008 through 1026, heat treated to reach grade 5 properties, then zinc plated. That material range is why the hardness lands at Rockwell C19-30 rather than the higher range you would see on a grade 8.
How fast can I get the Metallics JG5HC27 delivered?
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Does the Metallics JG5HC27 come with a warranty?
Absolutely. The Metallics JG5HC27 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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