Home > Bolts > Hex & Square Head Machine Bolts > Inch Hex & Square Head Machine Bolts > 3/8-16

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!
Sort By:
1
3/8-16 X 1-1/4 Hex Machine Bolt Steel 3/8-16 X 1-1/4 Hex Machine Bolt Steel Hot Dip Galvanized [800 PER BOX]
Price per Box: $207.12 / Quantity Discounts Available
3/8-16 X 1-1/2 Hex Machine Bolt Steel 3/8-16 X 1-1/2 Hex Machine Bolt Steel Hot Dip Galvanized [675 PER BOX]
Price per Box: $185.33 / Quantity Discounts Available
3/8-16 X 1 Hex Machine Bolt Steel 3/8-16 X 1 Hex Machine Bolt Steel Hot Dip Galvanized [900 PER BOX]
Price per Box: $205.51 / Quantity Discounts Available
3/8-16 X 2-1/2 Hex Machine Bolt Steel 3/8-16 X 2-1/2 Hex Machine Bolt Steel Hot Dip Galvanized [400 PER BOX]
Price per Box: $146.03 / Quantity Discounts Available
3/8-16 X 2 Hex Machine Bolt Steel 3/8-16 X 2 Hex Machine Bolt Steel Hot Dip Galvanized [550 PER BOX]
Price per Box: $229.49 / Quantity Discounts Available
3/8-16 X 3-1/2 Hex Machine Bolt Steel 3/8-16 X 3-1/2 Hex Machine Bolt Steel Hot Dip Galvanized [300 PER BOX]
Price per Box: $182.37 / Quantity Discounts Available
3/8-16 X 3 Hex Machine Bolt Steel 3/8-16 X 3 Hex Machine Bolt Steel Hot Dip Galvanized [325 PER BOX]
Price per Box: $163.12 / Quantity Discounts Available
3/8-16 X 4-1/2 Hex Machine Bolt Steel 3/8-16 X 4-1/2 Hex Machine Bolt Steel Hot Dip Galvanized [225 PER BOX]
Price per Box: $172.55 / Quantity Discounts Available
3/8-16 X 4 Hex Machine Bolt Steel 3/8-16 X 4 Hex Machine Bolt Steel Hot Dip Galvanized [250 PER BOX]
Price per Box: $163.25 / Quantity Discounts Available
3/8-16 X 5 Hex Machine Bolt Steel 3/8-16 X 5 Hex Machine Bolt Steel Hot Dip Galvanized [225 PER BOX]
Price per Box: $190.42 / Quantity Discounts Available
3/8-16 X 6 Hex Machine Bolt Steel 3/8-16 X 6 Hex Machine Bolt Steel Hot Dip Galvanized [175 PER BOX]
Price per Box: $173.33 / Quantity Discounts Available
3/8-16 X 1-1/4 Square Head Machine Bolt Steel 3/8-16 X 1-1/4 Square Head Machine Bolt Steel Plain [500 PER BOX]
Price per Box: $144.50 / Quantity Discounts Available
3/8-16 X 1-1/2 Square Head Machine Bolt Steel 3/8-16 X 1-1/2 Square Head Machine Bolt Steel Plain [500 PER BOX]
Price per Box: $210.89 / Quantity Discounts Available
3/8-16 X 1 Square Head Machine Bolt Steel 3/8-16 X 1 Square Head Machine Bolt Steel Plain [600 PER BOX]
Price per Box: $193.81 / Quantity Discounts Available
3/8-16 X 2-1/4 Square Head Machine Bolt Steel 3/8-16 X 2-1/4 Square Head Machine Bolt Steel Plain [300 PER BOX]
Price per Box: $165.06 / Quantity Discounts Available
3/8-16 X 2-1/2 Square Head Machine Bolt Steel 3/8-16 X 2-1/2 Square Head Machine Bolt Steel Plain [300 PER BOX]
Price per Box: $171.86 / Quantity Discounts Available
3/8-16 X 2-3/4 Square Head Machine Bolt Steel 3/8-16 X 2-3/4 Square Head Machine Bolt Steel Plain [300 PER BOX]
Price per Box: $202.51 / Quantity Discounts Available
3/8-16 X 2 Square Head Machine Bolt Steel 3/8-16 X 2 Square Head Machine Bolt Steel Plain [400 PER BOX]
Price per Box: $193.75 / Quantity Discounts Available
3/8-16 X 3-1/2 Square Head Machine Bolt Steel 3/8-16 X 3-1/2 Square Head Machine Bolt Steel Plain [200 PER BOX]
Price per Box: $166.02 / Quantity Discounts Available
3/8-16 X 3 Square Head Machine Bolt Steel 3/8-16 X 3 Square Head Machine Bolt Steel Plain [250 PER BOX]
Price per Box: $184.88 / Quantity Discounts Available
   
 
1