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Square Head Bolts

Square Head Bolts

Square Head Bolts have square-shaped external wrenching heads, which offer a large bearing area for positive gripping. These are best used in tight or dark spaces where a machinist or fabricator must tighten the bolt blind.
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5/16"-18x3-1/2" Square Head Bolts Grade A307 Zinc Clear

5/16"-18x3-1/2" Square Head Bolts Grade A307 Zinc Clear

From $1.33
From $1.33
5/16"-18x4" Square Head Bolts Grade A307 Hot Dip Galvanized

5/16"-18x4" Square Head Bolts Grade A307 Hot Dip Galvanized

From $1.73
From $1.73
5/16"-18x4" Square Head Bolts Grade A307 Zinc Clear

5/16"-18x4" Square Head Bolts Grade A307 Zinc Clear

From $1.53
From $1.53
5/16"-18x5" Square Head Bolts Grade A307 Hot Dip Galvanized

5/16"-18x5" Square Head Bolts Grade A307 Hot Dip Galvanized

From $2.13
From $2.13
5/16"-18x5" Square Head Bolts Grade A307 Zinc Clear

5/16"-18x5" Square Head Bolts Grade A307 Zinc Clear

From $1.86
From $1.86
5/16"-18x6" Square Head Bolts Grade A307 Hot Dip Galvanized

5/16"-18x6" Square Head Bolts Grade A307 Hot Dip Galvanized

From $2.50
From $2.50
5/16"-18x6" Square Head Bolts Grade A307 Zinc Clear

5/16"-18x6" Square Head Bolts Grade A307 Zinc Clear

From $2.24
From $2.24
3/8"-16x3/4" Square Head Bolts Grade A307 Hot Dip Galvanized

3/8"-16x3/4" Square Head Bolts Grade A307 Hot Dip Galvanized

From $0.72
From $0.72
3/8"-16x3/4" Square Head Bolts Grade A307 Zinc Clear

3/8"-16x3/4" Square Head Bolts Grade A307 Zinc Clear

From $0.63
From $0.63
3/8"-16x1" Square Head Bolts Grade A307 Hot Dip Galvanized

3/8"-16x1" Square Head Bolts Grade A307 Hot Dip Galvanized

From $0.88
From $0.88
3/8"-16x1" Square Head Bolts Grade A307 Zinc Clear

3/8"-16x1" Square Head Bolts Grade A307 Zinc Clear

From $0.68
From $0.68
3/8"-16x1-1/4" Square Head Bolts Grade A307 Hot Dip Galvanized

3/8"-16x1-1/4" Square Head Bolts Grade A307 Hot Dip Galvanized

From $1.00
From $1.00
3/8"-16x1-1/4" Square Head Bolts Grade A307 Zinc Clear

3/8"-16x1-1/4" Square Head Bolts Grade A307 Zinc Clear

From $0.82
From $0.82
3/8"-16x1-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized

3/8"-16x1-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized

From $1.10
From $1.10
3/8"-16x1-1/2" Square Head Bolts Grade A307 Zinc Clear

3/8"-16x1-1/2" Square Head Bolts Grade A307 Zinc Clear

From $0.98
From $0.98
3/8"-16x1-3/4" Square Head Bolts Grade A307 Hot Dip Galvanized

3/8"-16x1-3/4" Square Head Bolts Grade A307 Hot Dip Galvanized

From $1.59
From $1.59
3/8"-16x1-3/4" Square Head Bolts Grade A307 Zinc Clear

3/8"-16x1-3/4" Square Head Bolts Grade A307 Zinc Clear

From $1.47
From $1.47
3/8"-16x2" Square Head Bolts Grade A307 Hot Dip Galvanized

3/8"-16x2" Square Head Bolts Grade A307 Hot Dip Galvanized

From $1.08
From $1.08
3/8"-16x2" Square Head Bolts Grade A307 Zinc Clear

3/8"-16x2" Square Head Bolts Grade A307 Zinc Clear

From $1.50
From $1.50
3/8"-16x2-1/4" Square Head Bolts Grade A307 Hot Dip Galvanized

3/8"-16x2-1/4" Square Head Bolts Grade A307 Hot Dip Galvanized

From $1.22
From $1.22
3/8"-16x2-1/4" Square Head Bolts Grade A307 Zinc Clear

3/8"-16x2-1/4" Square Head Bolts Grade A307 Zinc Clear

From $0.98
From $0.98
3/8"-16x2-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized

3/8"-16x2-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized

From $1.63
From $1.63
3/8"-16x2-1/2" Square Head Bolts Grade A307 Zinc Clear

3/8"-16x2-1/2" Square Head Bolts Grade A307 Zinc Clear

From $1.43
From $1.43
3/8"-16x2-3/4" Square Head Bolts Grade A307 Hot Dip Galvanized

3/8"-16x2-3/4" Square Head Bolts Grade A307 Hot Dip Galvanized

From $1.78
From $1.78
3/8"-16x2-3/4" Square Head Bolts Grade A307 Zinc Clear

3/8"-16x2-3/4" Square Head Bolts Grade A307 Zinc Clear

From $1.56
From $1.56
3/8"-16x3" Square Head Bolts Grade A307 Hot Dip Galvanized

3/8"-16x3" Square Head Bolts Grade A307 Hot Dip Galvanized

From $1.95
From $1.95
3/8"-16x3" Square Head Bolts Grade A307 Zinc Clear

3/8"-16x3" Square Head Bolts Grade A307 Zinc Clear

From $1.74
From $1.74
3/8"-16x3-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized

3/8"-16x3-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized

From $2.26
From $2.26
3/8"-16x3-1/2" Square Head Bolts Grade A307 Zinc Clear

3/8"-16x3-1/2" Square Head Bolts Grade A307 Zinc Clear

From $1.98
From $1.98
3/8"-16x4" Square Head Bolts Grade A307 Hot Dip Galvanized

3/8"-16x4" Square Head Bolts Grade A307 Hot Dip Galvanized

From $2.87
From $2.87
3/8"-16x4" Square Head Bolts Grade A307 Zinc Clear

3/8"-16x4" Square Head Bolts Grade A307 Zinc Clear

From $2.35
From $2.35
3/8"-16x4-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized

3/8"-16x4-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized

From $2.92
From $2.92
3/8"-16x4-1/2" Square Head Bolts Grade A307 Zinc Clear

3/8"-16x4-1/2" Square Head Bolts Grade A307 Zinc Clear

From $2.45
From $2.45
3/8"-16x5" Square Head Bolts Grade A307 Hot Dip Galvanized

3/8"-16x5" Square Head Bolts Grade A307 Hot Dip Galvanized

From $3.11
From $3.11
3/8"-16x5" Square Head Bolts Grade A307 Zinc Clear

3/8"-16x5" Square Head Bolts Grade A307 Zinc Clear

From $2.69
From $2.69