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Bolts 5/8-11 X 3-1/2 G5 Hxbt St-zn (Box 50)
Additional Notes
- Other sizes and quantities available by request
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
Manufacturer Resources
Product Specs
- Arra Compliant:
- N
- Buy American Compliant:
- No
- Division:
- Electrical H1
- Fastener Head Height:
- 25/64 in.
- Fastener Head Type:
- Hex
- Fastener Head Width:
- 0.922 - 0.938 in.
- Fastener Height:
- 0.378 - 0.403
- Fastener Length:
- 3/1/02
- Fastener Width:
- 1.051 - 1.083
- Field Application:
- Electrical, Plumbing, Heating, 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:
- 0.6170 - 0.6250 IN
- Pack Type:
- Box
- Product Group:
- Fasteners
- Product Height:
- 6 in
- Product Length:
- 7.25 in
- Product Weight:
- 10.8 lbs
- Product Width:
- 6.25 in
- Sub Division:
- Electrical-E H2
- Tensile Strength:
- 105000 psi minimum
- Thread Per Inch:
- 11
- Thread Standard:
- ASME B18.2.1-2012
- Wrenching Height:
- 0.269
- 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 G5HC70 – Frequently Asked Questions
1) Will a standard 5/8-11 nut and a 5/8 drilled hole work with this bolt?
Yes. It is cut 11 threads per inch on a 5/8 inch nominal diameter to ASME B18.2.1-2012, so any standard 5/8-11 UNC nut, coupling, or tapped hole threads on. Measured shank diameter runs 0.6170 to 0.6250 inch, so a 5/8 inch drilled hole is a press fit at best. Drill 11/16 inch for a normal clearance hole.
2) Is this Grade 5 bolt strong enough to mount a motor base or machinery bracket?
That is the intended use. The G5HC70 is a medium carbon steel cap screw, heat treated to Rockwell C19-30 with 105,000 psi minimum tensile and yield strength, which is the Grade 5 class used for motor mounts, machinery anchoring, and automotive or truck repair. For higher loads you would step up to a Grade 8 bolt instead.
3) How many bolts come in a box of Metallics G5HC70, and do nuts or washers come with them?
Sold as a box of 50 bolts, with 50 each as the order minimum. Bolts only, no nuts or washers included, so add 5/8-11 hex nuts and 5/8 flat or lock washers to your order to complete the joint.
4) Does the Metallics G5HC70 hex bolt meet Buy American or ARRA requirements on a public job?
No. The G5HC70 is not Buy American compliant and not ARRA compliant, with country of origin listed as multiple. If your spec carries a domestic sourcing clause, this bolt will not satisfy it and you need a domestic Grade 5 hex bolt instead.
5) What wrench or socket size fits the Metallics G5HC70 5/8-11 hex bolt?
The hex head measures 0.922 to 0.938 inch across the flats, which is a 15/16 inch wrench or socket. Head height is 25/64 inch, so clearance under a shallow socket is tight in recessed pockets. Plan on a 15/16 combination wrench or impact socket for both the bolt head and a matching 5/8-11 nut.
6) Is a zinc plated steel bolt suitable for outdoor or rooftop equipment mounting?
The finish is zinc plating over steel, which handles indoor and dry mechanical room service and gives light corrosion resistance. It is not a marine or continuously wet finish. For rooftop condensers, exterior pipe supports, or washdown areas, specify hot dip galvanized or stainless instead of zinc plated.
7) Can I get the same Metallics Grade 5 hex bolt in another length or diameter?
Yes. The G5HC70 belongs to the Metallics G5HC and JG5HC series of zinc plated Grade 5 hex bolts, and other sizes and quantities are available by request. The 5/8-11 x 3-1/2 is one size in that run, so if your drawing calls for a longer shank or a smaller diameter at the same Grade 5 strength, ask for the matching series number.
8) How much does a box of 50 5/8-11 x 3-1/2 Grade 5 hex bolts weigh for shipping?
A full box runs 10.8 lbs. Worth knowing if you are staging material by hand up a ladder or ordering several boxes for a motor replacement program, since the weight adds up quickly at this diameter.
9) What steel is this bolt made from, and can I weld to it?
Material conforms to AISI 1008 to 1026 carbon steel, heat treated to Grade 5 properties. Welding or torch cutting on it destroys the heat treatment and the 105,000 psi strength that the Grade 5 rating depends on, so use it as a bolted fastener only and never weld a nut or tab to the shank.
10) Is this bolt used in electrical and mechanical trades, or just automotive?
Field application covers the electrical, plumbing, heating, and air conditioning trades. A 5/8-11 Grade 5 hex bolt in this length is common for anchoring motors, pump bases, unit mounting rails, and heavy equipment feet, and the same bolt gets used in truck and automotive repair.
How fast can I get the Metallics G5HC70 delivered?
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Does the Metallics G5HC70 come with a warranty?
Absolutely. The Metallics G5HC70 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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