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Material
Zinc plated grade 5 steel
Diameter
US
5/16"
(36)
Thread density
Coarse
18
(18)
Fine
24
(18)
Length
US
1/2"
(2)
3/4"
(2)
1"
(2)
1-1/4"
(2)
1-1/2"
(2)
1-3/4"
(2)
2"
(2)
2-1/4"
(2)
2-1/2"
(2)
3"
(2)
3-1/2"
(2)
4"
(2)
4-1/2"
(2)
5"
(2)
5-1/2"
(2)
6"
(2)
5/8"
(2)
2-3/4"
(2)
Wrench size
1/2"
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Steel
Grade 5
External hex
1/2"
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Product catalog
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Hex bolts
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Hex bolts
Hex bolts, Zinc plated grade 5 steel
Hex bolt diameter is measured on the outside of the threads.
Resources
US Hex bolt sizes
(opens in new window/tab)
Head/Wrench size table
US thread per inch table
Diameter and Thread count
Coarse (standard) thread
5/16"-18
Fine thread
5/16"-24
See also
Metric hex bolts
A bolt with a six sided head.
