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Inch Hex & Square Head Machine Bolts

Looking for Hex & Square Head Machine Bolts?

We carry Inch Hex & Square Head Machine Bolts manufactured to ASME B18.2.1 standards.

Stock sizes include: 1/4-20 through 3/4-10 (Hex) & 1-8 through 1-1/4-7 (Square) in Steel Hot Dip Galvanized (Hex) & Steel Plain (Square).

Scroll down to find your size, or search by part number.

Add to Cart and buy online or email us for a custom quote.  Most popular products are in stock and ship within 24 hours.

Can't find what you're looking for? Email us at [email protected] for a custom quote. "We have the right screw for you" is our motto after all!
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1/2-13 X 1-1/4 Hex Machine Bolt Steel 1/2-13 X 1-1/4 Hex Machine Bolt Steel Hot Dip Galvanized [375 PER BOX]
Price per Box: $177.77 / Quantity Discounts Available
1/2-13 X 1-1/2 Hex Machine Bolt Steel 1/2-13 X 1-1/2 Hex Machine Bolt Steel Hot Dip Galvanized [300 PER BOX]
Price per Box: $165.01 / Quantity Discounts Available
1/2-13 X 1-3/4 Hex Machine Bolt Steel 1/2-13 X 1-3/4 Hex Machine Bolt Steel Hot Dip Galvanized [275 PER BOX]
Price per Box: $166.22 / Quantity Discounts Available
1/2-13 X 10 Hex Machine Bolt Steel 1/2-13 X 10 Hex Machine Bolt Steel Hot Dip Galvanized [65 PER BOX]
Price per Box: $219.75 / Quantity Discounts Available
1/2-13 X 11 Hex Machine Bolt Steel 1/2-13 X 11 Hex Machine Bolt Steel Hot Dip Galvanized [60 PER BOX]
Price per Box: $231.82 / Quantity Discounts Available
1/2-13 X 12 Hex Machine Bolt Steel 1/2-13 X 12 Hex Machine Bolt Steel Hot Dip Galvanized [55 PER BOX]
Price per Box: $216.71 / Quantity Discounts Available
1/2-13 X 14 Hex Machine Bolt Steel 1/2-13 X 14 Hex Machine Bolt Steel Hot Dip Galvanized [50 PER BOX]
Price per Box: $242.41 / Quantity Discounts Available
1/2-13 X 1 Hex Machine Bolt Steel 1/2-13 X 1 Hex Machine Bolt Steel Hot Dip Galvanized [400 PER BOX]
Price per Box: $207.27 / Quantity Discounts Available
1/2-13 X 2-1/2 Hex Machine Bolt Steel 1/2-13 X 2-1/2 Hex Machine Bolt Steel Hot Dip Galvanized [225 PER BOX]
Price per Box: $218.44 / Quantity Discounts Available
1/2-13 X 2 Hex Machine Bolt Steel 1/2-13 X 2 Hex Machine Bolt Steel Hot Dip Galvanized [250 PER BOX]
Price per Box: $167.59 / Quantity Discounts Available
1/2-13 X 3-1/2 Hex Machine Bolt Steel 1/2-13 X 3-1/2 Hex Machine Bolt Steel Hot Dip Galvanized [150 PER BOX]
Price per Box: $213.90 / Quantity Discounts Available
1/2-13 X 3 Hex Machine Bolt Steel 1/2-13 X 3 Hex Machine Bolt Steel Hot Dip Galvanized [200 PER BOX]
Price per Box: $188.54 / Quantity Discounts Available
1/2-13 X 4-1/2 Hex Machine Bolt Steel 1/2-13 X 4-1/2 Hex Machine Bolt Steel Hot Dip Galvanized [125 PER BOX]
Price per Box: $171.45 / Quantity Discounts Available
1/2-13 X 4 Hex Machine Bolt Steel 1/2-13 X 4 Hex Machine Bolt Steel Hot Dip Galvanized [150 PER BOX]
Price per Box: $185.62 / Quantity Discounts Available
1/2-13 X 5-1/2 Hex Machine Bolt Steel 1/2-13 X 5-1/2 Hex Machine Bolt Steel Hot Dip Galvanized [100 PER BOX]
Price per Box: $177.22 / Quantity Discounts Available
1/2-13 X 5 Hex Machine Bolt Steel 1/2-13 X 5 Hex Machine Bolt Steel Hot Dip Galvanized [125 PER BOX]
Price per Box: $188.24 / Quantity Discounts Available
1/2-13 X 6-1/2 Hex Machine Bolt Steel 1/2-13 X 6-1/2 Hex Machine Bolt Steel Hot Dip Galvanized [100 PER BOX]
Price per Box: $238.12 / Quantity Discounts Available
1/2-13 X 6 Hex Machine Bolt Steel 1/2-13 X 6 Hex Machine Bolt Steel Hot Dip Galvanized [100 PER BOX]
Price per Box: $310.06 / Quantity Discounts Available
1/2-13 X 7 Hex Machine Bolt Steel 1/2-13 X 7 Hex Machine Bolt Steel Hot Dip Galvanized [90 PER BOX]
Price per Box: $132.68 / Quantity Discounts Available
1/2-13 X 8 Hex Machine Bolt Steel 1/2-13 X 8 Hex Machine Bolt Steel Hot Dip Galvanized [80 PER BOX]
Price per Box: $203.22 / Quantity Discounts Available
1/2-13 X 1-1/4 Square Head Machine Bolt Steel 1/2-13 X 1-1/4 Square Head Machine Bolt Steel Plain [250 PER BOX]
Price per Box: $132.88 / Quantity Discounts Available
1/2-13 X 1-1/2 Square Head Machine Bolt Steel 1/2-13 X 1-1/2 Square Head Machine Bolt Steel Plain [250 PER BOX]
Price per Box: $144.60 / Quantity Discounts Available
1/2-13 X 1-3/4 Square Head Machine Bolt Steel 1/2-13 X 1-3/4 Square Head Machine Bolt Steel Plain [250 PER BOX]
Price per Box: $166.57 / Quantity Discounts Available
1/2-13 X 12 Square Head Machine Bolt Steel 1/2-13 X 12 Square Head Machine Bolt Steel Plain [50 PER BOX]
Price per Box: $537.23 / Quantity Discounts Available
1/2-13 X 1 Square Head Machine Bolt Steel 1/2-13 X 1 Square Head Machine Bolt Steel Plain [300 PER BOX]
Price per Box: $183.99 / Quantity Discounts Available
1/2-13 X 2-1/4 Square Head Machine Bolt Steel 1/2-13 X 2-1/4 Square Head Machine Bolt Steel Plain [200 PER BOX]
Price per Box: $233.47 / Quantity Discounts Available
1/2-13 X 2-1/2 Square Head Machine Bolt Steel 1/2-13 X 2-1/2 Square Head Machine Bolt Steel Plain [150 PER BOX]
Price per Box: $123.66 / Quantity Discounts Available
1/2-13 X 2 Square Head Machine Bolt Steel 1/2-13 X 2 Square Head Machine Bolt Steel Plain [200 PER BOX]
Price per Box: $150.98 / Quantity Discounts Available
1/2-13 X 3-1/2 Square Head Machine Bolt Steel 1/2-13 X 3-1/2 Square Head Machine Bolt Steel Plain [100 PER BOX]
Price per Box: $126.38 / Quantity Discounts Available
1/2-13 X 3 Square Head Machine Bolt Steel 1/2-13 X 3 Square Head Machine Bolt Steel Plain [150 PER BOX]
Price per Box: $196.42 / Quantity Discounts Available
1/2-13 X 4-1/2 Square Head Machine Bolt Steel 1/2-13 X 4-1/2 Square Head Machine Bolt Steel Plain [100 PER BOX]
Price per Box: $183.32 / Quantity Discounts Available
1/2-13 X 4 Square Head Machine Bolt Steel 1/2-13 X 4 Square Head Machine Bolt Steel Plain [100 PER BOX]
Price per Box: $149.13 / Quantity Discounts Available
1/2-13 X 6 Square Head Machine Bolt Steel 1/2-13 X 6 Square Head Machine Bolt Steel Plain [100 PER BOX]
Price per Box: $241.95 / Quantity Discounts Available
1/2-13 X 7-1/2 Square Head Machine Bolt Steel 1/2-13 X 7-1/2 Square Head Machine Bolt Steel Plain [75 PER BOX]
Price per Box: $336.38 / Quantity Discounts Available
1/2-13 X 7 Square Head Machine Bolt Steel 1/2-13 X 7 Square Head Machine Bolt Steel Plain [75 PER BOX]
Price per Box: $196.45 / Quantity Discounts Available
   
 
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