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Material
Zinc plated steel
Diameter
US
5/16"
(1)
Thread density
18
Length
7"
Wrench size
1/2"
(1)
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18
7"
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Hex bolts
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Hex bolts
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Zinc plated steel
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18
Hex bolts, Zinc plated steel, 18, 7"
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
See also
Metric hex bolts
A bolt with a six sided head.