Hex Machine Bolts, ASTM A307, Coarse Thread, Zinc Plated – 1/4 - 5/16 - 3/8"

Also known as:

Hex Bolts, Square Head Bolts

Square Machine Bolts are easily gripped by a hand wrench due to the large bearing area design. Hex Machine Bolts tend to be larger than hex bolts—up to 1-1/2" in diameter or more, and up to 20" in length. Hot Dip Galvanized Hex Nuts, which are tapped oversize, must be used with Hot Dip Galvanized Machine Bolts. The length of machine bolts is measured from under the head to the tip.

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Code	Product	Qty.	Package	Qty.	Carton
BL122-2572	1/4-20 x 1/2" Hex Head Bolt, A307 Grade A, Zinc Plated	100 pcs	$3.38 $0.034 ea	4,500 pcs 50+ lbs	$99.78 $0.023 ea
BL122-4582	1/4-20 x 5/8" Hex Head Bolt, A307 Grade A, Zinc Plated	100 pcs	$3.38 $0.034 ea	4,000 pcs 50+ lbs	$96.20 $0.025 ea
BL122-6582	1/4-20 x 3/4" Hex Head Bolt, A307 Grade A, Zinc Plated	100 pcs	$3.84 $0.039 ea	4,000 pcs 50+ lbs	$105.36 $0.027 ea
BL122-8582	1/4-20 x 7/8" Hex Head Bolt, A307 Grade A, Zinc Plated	100 pcs	$4.34 $0.044 ea	3,000 pcs	$90.12 $0.031 ea
BL122-0582	1/4-20 x 1" Hex Head Bolt, A307 Grade A, Zinc Plated	100 pcs	$4.57 $0.046 ea	3,000 pcs 50+ lbs	$97.43 $0.033 ea
BL122-2582	1/4-20 x 1 1/4" Hex Head Bolt, A307 Grade A, Zinc Plated	100 pcs	$5.50 $0.055 ea	2,400 pcs 50+ lbs	$92.23 $0.039 ea
BL122-5592	1/4-20 x 1 1/2" Hex Head Bolt, A307 Grade A, Zinc Plated	100 pcs	$6.41 $0.065 ea	2,200 pcs 50+ lbs	$99.77 $0.046 ea
BL122-7592	1/4-20 x 1 3/4" Hex Head Bolt, A307 Grade A, Zinc Plated	100 pcs	$10.77 $0.108 ea	1,800 pcs 50+ lbs	$87.29 $0.049 ea
BL122-9592	1/4-20 x 2" Hex Head Bolt, A307 Grade A, Zinc Plated	100 pcs	$8.22 $0.083 ea	1,600 pcs 50+ lbs	$91.37 $0.058 ea
BL122-1592	1/4-20 x 2 1/4" Hex Head Bolt, A307 Grade A, Zinc Plated	50 pcs	$4.74 $0.095 ea	1,300 pcs	$80.79 $0.063 ea
BL122-3592	1/4-20 x 2 1/2" Hex Head Bolt, A307 Grade A, Zinc Plated	50 pcs	$5.38 $0.108 ea	1,300 pcs 50+ lbs	$84.80 $0.066 ea
BL122-5502	1/4-20 x 2 3/4" Hex Head Bolt, A307 Grade A, Zinc Plated	50 pcs	$5.47 $0.110 ea	900 pcs	$73.78 $0.082 ea
BL122-7502	1/4-20 x 3" Hex Head Bolt, A307 Grade A, Zinc Plated	50 pcs	$5.40 $0.108 ea	900 pcs	$74.30 $0.083 ea
BL122-9502	1/4-20 x 3 1/4" Hex Head Bolt, A307 Grade A, Zinc Plated	50 pcs	$6.93 $0.139 ea	800 pcs	$76.21 $0.096 ea
BL122-1502	1/4-20 x 3 1/2" Hex Head Bolt, A307 Grade A, Zinc Plated	50 pcs	$6.86 $0.138 ea	750 pcs	$79.48 $0.106 ea
BL122-3502	1/4-20 x 3 3/4" Hex Head Bolt, A307 Grade A, Zinc Plated	50 pcs	$7.82 $0.157 ea	700 pcs	$73.96 $0.106 ea
BL122-5512	1/4-20 x 4" Hex Head Bolt, A307 Grade A, Zinc Plated	50 pcs	$10.28 $0.206 ea	700 pcs	$72.36 $0.104 ea
BL122-9512	1/4-20 x 4 1/2" Hex Head Bolt, A307 Grade A, Zinc Plated	50 pcs	$9.72 $0.195 ea	600 pcs	$68.37 $0.114 ea
BL122-1512	1/4-20 x 5" Hex Head Bolt, A307 Grade A, Zinc Plated	50 pcs	$7.87 $0.158 ea	600 pcs	$76.09 $0.127 ea
BL122-3512	1/4-20 x 5 1/2" Hex Head Bolt, A307 Grade A, Zinc Plated	50 pcs	$13.10 $0.262 ea	600 pcs	$85.30 $0.143 ea
BL122-5522	1/4-20 x 6" Hex Head Bolt, A307 Grade A, Zinc Plated	50 pcs	$10.89 $0.218 ea	600 pcs 50+ lbs	$96.46 $0.161 ea
BL122-7522	1/4-20 x 6 1/2" Hex Head Bolt, A307 Grade A, Zinc Plated	50 pcs	$16.45 $0.329 ea	600 pcs 50+ lbs	$116.75 $0.195 ea
BL122-9522	1/4-20 x 7" Hex Head Bolt, A307 Grade A, Zinc Plated	50 pcs	$20.78 $0.416 ea	400 pcs	$86.15 $0.216 ea
BL122-1522	1/4-20 x 7 1/2" Hex Head Bolt, A307 Grade A, Zinc Plated	50 pcs	$22.03 $0.441 ea
BL122-3522	1/4-20 x 8" Hex Head Bolt, A307 Grade A, Zinc Plated	50 pcs	$20.00 $0.400 ea	350 pcs	$86.23 $0.247 ea

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