Square bolts (also known as square head bolts or square head machine bolts) offer less danger of wrench slippage in hand wrenching, as well as a greater bearing area. In addition, the square head style is more secure than a hex bolt style when fixed into a cored recess.
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Diameter

Pitch

Coarse

Length

Material

A307 Grade A

Finish

Galvanized

Type of Packages

Item #

Item Name

Package Quantity

Web Price

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N/A 3/8-16 X 1 3/4 SQUARE BOLT A307 GRADE A GALVANIZED N/A 1000 QUOTE Add To Cart
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N/A 3/8-16 X 3 SQUARE BOLT A307 GRADE A GALVANIZED N/A 500 QUOTE Add To Cart
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N/A 5/16-18 X 5 SQUARE BOLT A307 GRADE A GALVANIZED N/A 300 $246.46 Add To Cart
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N/A 5/8-11 X 8 SQUARE BOLT A307 GRADE A GALVANIZED N/A 60 $262.76 Add To Cart
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N/A 5/8-11 X 5 1/2 SQUARE BOLT A307 GRADE A GALVANIZED N/A 75 $271.45 Add To Cart
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N/A 1/4-20 X 3 1/2 SQUARE BOLT A307 GRADE A GALVANIZED N/A 750 $272.42 Add To Cart
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N/A 1/4-20 X 3 SQUARE BOLT A307 GRADE A GALVANIZED N/A 900 $284.45 Add To Cart
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N/A 1/4-20 X 4 SQUARE BOLT A307 GRADE A GALVANIZED N/A 700 $284.45 Add To Cart
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N/A 5/16-18 X 6 SQUARE BOLT A307 GRADE A GALVANIZED N/A 300 $291.06 Add To Cart
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N/A 5/8-11 X 6 SQUARE BOLT A307 GRADE A GALVANIZED N/A 75 $297.15 Add To Cart
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N/A 5/8-11 X 5 SQUARE BOLT A307 GRADE A GALVANIZED N/A 90 $297.99 Add To Cart
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N/A 5/16-18 X 4 SQUARE BOLT A307 GRADE A GALVANIZED N/A 450 $298.04 Add To Cart
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N/A 5/8-11 X 4 1/2 SQUARE BOLT A307 GRADE A GALVANIZED N/A 100 $317.28 Add To Cart
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N/A 3/8-16 X 5 1/2 SQUARE BOLT A307 GRADE A GALVANIZED N/A 250 $323.77 Add To Cart
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N/A 5/8-11 X 7 SQUARE BOLT A307 GRADE A GALVANIZED N/A 70 $337.60 Add To Cart
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N/A 3/8-16 X 4 1/2 SQUARE BOLT A307 GRADE A GALVANIZED N/A 300 $337.65 Add To Cart
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N/A 3/4-10 X 5 1/2 SQUARE BOLT A307 GRADE A GALVANIZED N/A 60 $338.18 Add To Cart
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N/A 1/2-13 X 4 1/2 SQUARE BOLT A307 GRADE A GALVANIZED N/A 175 $339.23 Add To Cart
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N/A 1/2-13 X 5 1/2 SQUARE BOLT A307 GRADE A GALVANIZED N/A 150 $344.85 Add To Cart
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N/A 1/4-20 X 2 1/2 SQUARE BOLT A307 GRADE A GALVANIZED N/A 1300 $345.82 Add To Cart
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N/A 1/4-20 X 2 SQUARE BOLT A307 GRADE A GALVANIZED N/A 1600 $348.02 Add To Cart
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N/A 3/8-16 X 3 1/2 SQUARE BOLT A307 GRADE A GALVANIZED N/A 400 $348.47 Add To Cart
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N/A 5/8-11 X 4 SQUARE BOLT A307 GRADE A GALVANIZED N/A 125 $350.62 Add To Cart
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N/A 3/4-10 X 5 SQUARE BOLT A307 GRADE A GALVANIZED N/A 65 $352.28 Add To Cart
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N/A 5/16-18 X 3 1/2 SQUARE BOLT A307 GRADE A GALVANIZED N/A 600 $353.40 Add To Cart
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