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Square Head Bolts

Collection: 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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223 products

1/2"-13x1-3/4" Square Head Bolts Grade A307 Hot Dip Galvanized

1/2"-13x1-3/4" Square Head Bolts Grade A307 Hot Dip Galvanized

Regular price From $2.03
Sale price From $2.03 Regular price
1/2"-13x1-3/4" Square Head Bolts Grade A307 Zinc Clear

1/2"-13x1-3/4" Square Head Bolts Grade A307 Zinc Clear

Regular price From $1.50
Sale price From $1.50 Regular price
1/2"-13x2" Square Head Bolts Grade A307 Hot Dip Galvanized

1/2"-13x2" Square Head Bolts Grade A307 Hot Dip Galvanized

Regular price From $2.05
Sale price From $2.05 Regular price
1/2"-13x2" Square Head Bolts Grade A307 Zinc Clear

1/2"-13x2" Square Head Bolts Grade A307 Zinc Clear

Regular price From $1.69
Sale price From $1.69 Regular price
1/2"-13x2-1/4" Square Head Bolts Grade A307 Hot Dip Galvanized

1/2"-13x2-1/4" Square Head Bolts Grade A307 Hot Dip Galvanized

Regular price From $2.37
Sale price From $2.37 Regular price
1/2"-13x2-1/4" Square Head Bolts Grade A307 Zinc Clear

1/2"-13x2-1/4" Square Head Bolts Grade A307 Zinc Clear

Regular price From $2.81
Sale price From $2.81 Regular price
1/2"-13x2-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized

1/2"-13x2-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized

Regular price From $1.91
Sale price From $1.91 Regular price
1/2"-13x2-1/2" Square Head Bolts Grade A307 Zinc Clear

1/2"-13x2-1/2" Square Head Bolts Grade A307 Zinc Clear

Regular price From $2.05
Sale price From $2.05 Regular price
1/2"-13x3" Square Head Bolts Grade A307 Hot Dip Galvanized

1/2"-13x3" Square Head Bolts Grade A307 Hot Dip Galvanized

Regular price From $2.95
Sale price From $2.95 Regular price
1/2"-13x3" Square Head Bolts Grade A307 Zinc Clear

1/2"-13x3" Square Head Bolts Grade A307 Zinc Clear

Regular price From $2.60
Sale price From $2.60 Regular price
1/2"-13x3-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized

1/2"-13x3-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized

Regular price From $3.59
Sale price From $3.59 Regular price
1/2"-13x3-1/2" Square Head Bolts Grade A307 Zinc Clear

1/2"-13x3-1/2" Square Head Bolts Grade A307 Zinc Clear

Regular price From $2.71
Sale price From $2.71 Regular price
1/2"-13x4" Square Head Bolts Grade A307 Hot Dip Galvanized

1/2"-13x4" Square Head Bolts Grade A307 Hot Dip Galvanized

Regular price From $4.12
Sale price From $4.12 Regular price
1/2"-13x4" Square Head Bolts Grade A307 Zinc Clear

1/2"-13x4" Square Head Bolts Grade A307 Zinc Clear

Regular price From $3.03
Sale price From $3.03 Regular price
1/2"-13x4-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized

1/2"-13x4-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized

Regular price From $4.37
Sale price From $4.37 Regular price
1/2"-13x4-1/2" Square Head Bolts Grade A307 Zinc Clear

1/2"-13x4-1/2" Square Head Bolts Grade A307 Zinc Clear

Regular price From $3.42
Sale price From $3.42 Regular price
1/2"-13x5" Square Head Bolts Grade A307 Hot Dip Galvanized

1/2"-13x5" Square Head Bolts Grade A307 Hot Dip Galvanized

Regular price From $5.57
Sale price From $5.57 Regular price
1/2"-13x5" Square Head Bolts Grade A307 Zinc Clear

1/2"-13x5" Square Head Bolts Grade A307 Zinc Clear

Regular price From $3.75
Sale price From $3.75 Regular price
1/2"-13x5-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized

1/2"-13x5-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized

Regular price From $5.18
Sale price From $5.18 Regular price
1/2"-13x5-1/2" Square Head Bolts Grade A307 Zinc Clear

1/2"-13x5-1/2" Square Head Bolts Grade A307 Zinc Clear

Regular price From $4.08
Sale price From $4.08 Regular price