Coburn-Myers Fastening Systems, Inc.
Coburn-Myers Fastening Systems, Inc.
3211 West 9th Street, Trainer, PA 19061-5242
Toll Free: (800) 662-7459
E-Mail: sales@coburnmyers.com
Web site: www.coburnmyers.com
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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.
A307 GRADE A SQUARE HEAD BOLT, ZINC CR+3 (INCH)
Unit of Measure
1 2 3 4 5 

Item #

Item Name

Package Quantity

Web Price

25C75BSQ2Z N/A 1/4-20 X 3/4 SQUARE BOLT A307 GRADE A ZINC N/A 4000 $343.56
25C100BSQ2Z N/A 1/4-20 X 1 SQUARE BOLT A307 GRADE A ZINC N/A 3600 $355.90
25C125BSQ2Z N/A 1/4-20 X 1 1/4 SQUARE BOLT A307 GRADE A ZINC N/A 2800 $456.23
25C150BSQ2Z N/A 1/4-20 X 1 1/2 SQUARE BOLT A307 GRADE A ZINC N/A 2400 $354.06
25C200BSQ2Z N/A 1/4-20 X 2 SQUARE BOLT A307 GRADE A ZINC N/A 1600 $312.14
25C250BSQ2Z N/A 1/4-20 X 2 1/2 SQUARE BOLT A307 GRADE A ZINC N/A 1300 $305.16
25C300BSQ2Z N/A 1/4-20 X 3 SQUARE BOLT A307 GRADE A ZINC N/A 900 $243.13
25C350BSQ2Z N/A 1/4-20 X 3 1/2 SQUARE BOLT A307 GRADE A ZINC N/A 750 $234.18
25C400BSQ2Z N/A 1/4-20 X 4 SQUARE BOLT A307 GRADE A ZINC N/A 700 $249.11
31C75BSQ2Z N/A 5/16-18 X 3/4 SQUARE BOLT A307 GRADE A ZINC N/A 2600 $474.76
31C100BSQ2Z N/A 5/16-18 X 1 SQUARE BOLT A307 GRADE A ZINC N/A 2200 $418.35
31C125BSQ2Z N/A 5/16-18 X 1 1/4 SQUARE BOLT A307 GRADE A ZINC N/A 1800 $391.76
31C137BSQ2Z N/A 5/16-18 X 1 3/8 SQUARE BOLT A307 GRADE A ZINC N/A 1250 $345.19
31C150BSQ2Z N/A 5/16-18 X 1 1/2 SQUARE BOLT A307 GRADE A ZINC N/A 1600 $371.36
31C175BSQ2Z N/A 5/16-18 X 1 3/4 SQUARE BOLT A307 GRADE A ZINC N/A 1300 $348.42
31C200BSQ2Z N/A 5/16-18 X 2 SQUARE BOLT A307 GRADE A ZINC N/A 1200 $392.81
31C250BSQ2Z N/A 5/16-18 X 2 1/2 SQUARE BOLT A307 GRADE A ZINC N/A 900 $328.44
31C300BSQ2Z N/A 5/16-18 X 3 SQUARE BOLT A307 GRADE A ZINC N/A 700 $314.87
31C350BSQ2Z N/A 5/16-18 X 3 1/2 SQUARE BOLT A307 GRADE A ZINC N/A 600 $305.13
31C400BSQ2Z N/A 5/16-18 X 4 SQUARE BOLT A307 GRADE A ZINC N/A 450 $259.88
31C500BSQ2Z N/A 5/16-18 X 5 SQUARE BOLT A307 GRADE A ZINC N/A 300 $212.81
31C600BSQ2Z N/A 5/16-18 X 6 SQUARE BOLT A307 GRADE A ZINC N/A 300 $259.88
37C400BSQ2Z N/A 3/8-16 X SQUARE BOLT A307 GRADE A ZINC N/A 325 $291.56
37C75BSQ2Z N/A 3/8-16 X 3/4 SQUARE BOLT A307 GRADE A ZINC N/A 1800 $432.05
37C100BSQ2Z N/A 3/8-16 X 1 SQUARE BOLT A307 GRADE A ZINC N/A 1500 $388.37
Unit of Measure
1 2 3 4 5