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Alma Bolt Company & Prime Fasteners 1-800-526-2200

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Head Plow Bolts

 

 

 

 

 

#3 Head Plow Bolts

Made from grades 2, 5 and 8 carbon steel, these bolts are excellent for use on snow plows, farm equipment and similar heavy equipment. Conforms to ASTM A307 and A449. Available with a flat head style only. Stocked in diameters from 3/8" to 5/8".

D
A
F
S
B
Nominal Diameter
Diameter of Head
Feed Thickness
Depth of Square and Head
Width of Square
Max
Min Sharp
Abs. Min with Flat
Max
Max
Min
Max
Min
3/8 0.708 0.671 0.656 0.031 0.312 0.281 0.387 0.375
7/16 0.826 0.781 0.766 0.036 0.364 0.328 0.450 0.438
1/2 0.945 0.890 0.875 0.042 0.417 0.375 0.515 0.500
5/8 1.147 1.094 1.063 0.050 0.506 0.456 0.640 0.625
3/4 1.303 1.250 1.219 0.050 0.541 0.491 0.765 0.750

Minimum Thread Length of Plow Bolts

Bolt Length
Bolt Diameter
3/8
7/16
1/2
5/8
3/4
1
T TO H
-
-
-
-
1-1/4
T TO H
T TO H
T TO H
-
-
1-1/2
1
T TO H
T TO H
-
-
1-3/4
1
1-1/8
1-1/4
-
-
2
1
1-1/8
1-1/4
T TO H
-
2-1/4
-
1-1/8
1-1/4
1-1/2
T TO H
2-1/2
1
1-1/8
1-1/4
1-1/2
1-1/4
3
-
1-1/8
1-1/4
1-1/2
1-1/4
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