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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3/8"-16x1-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized
$1.10
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3/8"-16x1-1/2" Square Head Bolts Grade A307 Zinc Clear
$0.98
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3/8"-16x1-3/4" Square Head Bolts Grade A307 Hot Dip Galvanized
$1.59
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3/8"-16x1-3/4" Square Head Bolts Grade A307 Zinc Clear
$1.47
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3/8"-16x2" Square Head Bolts Grade A307 Hot Dip Galvanized
$1.08
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3/8"-16x2-1/4" Square Head Bolts Grade A307 Hot Dip Galvanized
$1.23
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3/8"-16x2-1/4" Square Head Bolts Grade A307 Zinc Clear
$0.98
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3/8"-16x2-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized
$1.63
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3/8"-16x2-1/2" Square Head Bolts Grade A307 Zinc Clear
$1.43
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3/8"-16x2-3/4" Square Head Bolts Grade A307 Hot Dip Galvanized
$1.78
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3/8"-16x2-3/4" Square Head Bolts Grade A307 Zinc Clear
$1.56
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3/8"-16x3" Square Head Bolts Grade A307 Hot Dip Galvanized
$1.95
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3/8"-16x3-1/2" Square Head Bolts Grade A307 Zinc Clear
$1.98
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3/8"-16x3-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized
$2.26
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3/8"-16x4" Square Head Bolts Grade A307 Hot Dip Galvanized
$2.87
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3/8"-16x4-1/2" Square Head Bolts Grade A307 Zinc Clear
$2.45
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3/8"-16x4-1/2" Square Head Bolts Grade A307 Hot Dip Galvanized
$2.92
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3/8"-16x5" Square Head Bolts Grade A307 Hot Dip Galvanized
$3.11
