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My Account Product Search Product Catalog Metric Coarse Class 8.8Metric Set Screws 8.8Metric Coarse Class 10.9Metric Set Screws 10.9Metric Fine 8.8Metric Fine 10.9Grade 5 UNFGrade 5 Set Screws UNFGrade 5 UNCGrade 5 Set Screws UNCGrade 8 UNFGrade 8 UNCGrade C LocknutsGrade 9NylocsWashersSpecialsBrassCapscrewsFlangeFlange NutsGrade 8 UNC Plow BoltsKemtekLocknuts/ConelocksMetalfixRivetsRivnutsRivtecSpectrumStainless SteelStudsWing Nuts
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US Bolt Head

This technical information has been supplied by boltdepot.com

Bolt
Diameter
Head/Wrench Size
Hex Bolt
-
Lag Bolt
-
Square Bolt
Heavy Hex Bolt
#6
1/4
-
#8
1/4
-
#10
5/16
-
#12
5/16
-
1/4
7/16 or 3/8
-
5/16
1/2
-
3/8
9/16
-
7/16
5/8
-
1/2
3/4
7/8
9/16
13/16
-
5/8
15/16
1-1/16
3/4
1-1/8
1-1/4
7/8
1-5/16
1-7/16
1
1-1/2
1-5/8
1-1/8
1-11/16
1-3/4
1-1/4
1-7/8
2