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A307 Grade A Carriage Bolts

Round head square neck bolts are referred to as Carriage Bolts. With their trademark shallow, mushroom-shaped head, these bolts are intended to be used in low profile applications where access to installing and removing the bolt is only available from the nut side.  This includes many wood-to-wood or metal-to-wood applications.  Because of the 1-sided access, they are also often used in applications where tamperproof access is desired.
 
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Showing 101 to 150 of 637 results
Model Product Size Plate Pkg Qty  
490034 1/4"-20 x 6" Carriage Bolt, A307 Gr. A, HD Galv. 1/4"-20 HD Galv. 450
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Quote
488037 1/4"-20 x 6 1/2" Carriage Bolt, A307 Gr. A, Plain 1/4"-20 Plain 425
Add to
Quote
489037 1/4"-20 x 6 1/2" Carriage Bolt, A307 Gr. A, Zinc 1/4"-20 Zinc 425
Add to
Quote
490107 1/4"-20 x 6 1/2" Carriage Bolt, A307 Gr. A, HD Galv. 1/4"-20 HD Galv. 550
Add to
Quote
488038 1/4"-20 x 7" Carriage Bolt, A307 Gr. A, Plain 1/4"-20 Plain 375
Add to
Quote
489038 1/4"-20 x 7" Carriage Bolt, A307 Gr. A, Zinc 1/4"-20 Zinc 375
Add to
Quote
490108 1/4"-20 x 7" Carriage Bolt, A307 Gr. A, HD Galv. 1/4"-20 HD Galv. 500
Add to
Quote
488039 1/4"-20 x 7 1/2" Carriage Bolt, A307 Gr. A, Plain 1/4"-20 Plain 250
Add to
Quote
489039 1/4"-20 x 7 1/2" Carriage Bolt, A307 Gr. A, Zinc 1/4"-20 Zinc 250
Add to
Quote
488040 1/4"-20 x 8" Carriage Bolt, A307 Gr. A, Plain 1/4"-20 Plain 250
Add to
Quote
489040 1/4"-20 x 8" Carriage Bolt, A307 Gr. A, Zinc 1/4"-20 Zinc 250
Add to
Quote
490109 1/4"-20 x 8" Carriage Bolt, A307 Gr. A, HD Galv. 1/4"-20 HD Galv. 450
Add to
Quote
488042 5/16"-18 x 5/8" Carriage Bolt, A307 Gr. A, Plain 5/16"-18 Plain 2,000
Add to
Quote
489042 5/16"-18 x 5/8" Carriage Bolt, A307 Gr. A, Zinc 5/16"-18 Zinc 2,000
Add to
Quote
428046 5/16"-18 x 3/4" Carriage Bolt, A307 Gr. A, Zinc-Yellow 5/16"-18 Zinc-Yellow 2,400
Add to
Quote
488043 5/16"-18 x 3/4" Carriage Bolt, A307 Gr. A, Plain 5/16"-18 Plain 2,000
Add to
Quote
489043 5/16"-18 x 3/4" Carriage Bolt, A307 Gr. A, Zinc 5/16"-18 Zinc 2,000
Add to
Quote
490035 5/16"-18 x 3/4" Carriage Bolt, A307 Gr. A, HD Galv. 5/16"-18 HD Galv. 1,500
Add to
Quote
428048 5/16"-18 x 1" Carriage Bolt, A307 Gr. A, Zinc-Yellow 5/16"-18 Zinc-Yellow 1,600
Add to
Quote
488044 5/16"-18 x 1" Carriage Bolt, A307 Gr. A, Plain 5/16"-18 Plain 1,625
Add to
Quote
489044 5/16"-18 x 1" Carriage Bolt, A307 Gr. A, Zinc 5/16"-18 Zinc 1,625
Add to
Quote
490036 5/16"-18 x 1" Carriage Bolt, A307 Gr. A, HD Galv. 5/16"-18 HD Galv. 1,600
Add to
Quote
428050 5/16"-18 x 1-1/4" Carriage Bolt, A307 Gr. A, Zinc-Yellow 5/16"-18 Zinc-Yellow 1,400
Add to
Quote
488045 5/16"-18 x 1-1/4" Carriage Bolt, A307 Gr. A, Plain 5/16"-18 Plain 1,375
Add to
Quote
489045 5/16"-18 x 1-1/4" Carriage Bolt, A307 Gr. A, Zinc 5/16"-18 Zinc 1,375
Add to
Quote
490037 5/16"-18 x 1-1/4" Carriage Bolt, A307 Gr. A, HD Galv. 5/16"-18 HD Galv. 1,375
Add to
Quote
428052 5/16"-18 x 1-1/2" Carriage Bolt, A307 Gr. A, Zinc-Yellow 5/16"-18 Zinc-Yellow 1,100
Add to
Quote
488041 5/16"-18 x 1-1/2" Carriage Bolt, A307 Gr. A, Plain 5/16"-18 Plain 3,500
Add to
Quote
488046 5/16"-18 x 1-1/2" Carriage Bolt, A307 Gr. A, Plain 5/16"-18 Plain 1,250
Add to
Quote
489041 5/16"-18 x 1-1/2" Carriage Bolt, A307 Gr. A, Zinc 5/16"-18 Zinc 2,000
Add to
Quote
489046 5/16"-18 x 1-1/2" Carriage Bolt, A307 Gr. A, Zinc 5/16"-18 Zinc 1,250
Add to
Quote
490038 5/16"-18 x 1-1/2" Carriage Bolt, A307 Gr. A, HD Galv. 5/16"-18 HD Galv. 1,250
Add to
Quote
488047 5/16"-18 x 1-3/4" Carriage Bolt, A307 Gr. A, Plain 5/16"-18 Plain 1,125
Add to
Quote
489047 5/16"-18 x 1-3/4" Carriage Bolt, A307 Gr. A, Zinc 5/16"-18 Zinc 1,125
Add to
Quote
490039 5/16"-18 x 1-3/4" Carriage Bolt, A307 Gr. A, HD Galv. 5/16"-18 HD Galv. 1,000
Add to
Quote
428055 5/16"-18 x 2" Carriage Bolt, A307 Gr. A, Zinc-Yellow 5/16"-18 Zinc-Yellow 850
Add to
Quote
488048 5/16"-18 x 2" Carriage Bolt, A307 Gr. A, Plain 5/16"-18 Plain 1,000
Add to
Quote
489048 5/16"-18 x 2" Carriage Bolt, A307 Gr. A, Zinc 5/16"-18 Zinc 1,000
Add to
Quote
490040 5/16"-18 x 2" Carriage Bolt, A307 Gr. A, HD Galv. 5/16"-18 HD Galv. 1,000
Add to
Quote
488049 5/16"-18 x 2-1/4" Carriage Bolt, A307 Gr. A, Plain 5/16"-18 Plain 875
Add to
Quote
489049 5/16"-18 x 2-1/4" Carriage Bolt, A307 Gr. A, Zinc 5/16"-18 Zinc 875
Add to
Quote
490041 5/16"-18 x 2-1/4" Carriage Bolt, A307 Gr. A, HD Galv. 5/16"-18 HD Galv. 800
Add to
Quote
428057 5/16"-18 x 2-1/2" Carriage Bolt, A307 Gr. A, Zinc-Yellow 5/16"-18 Zinc-Yellow 650
Add to
Quote
488050 5/16"-18 x 2-1/2" Carriage Bolt, A307 Gr. A, Plain 5/16"-18 Plain 800
Add to
Quote
489050 5/16"-18 x 2-1/2" Carriage Bolt, A307 Gr. A, Zinc 5/16"-18 Zinc 800
Add to
Quote
490042 5/16"-18 x 2-1/2" Carriage Bolt, A307 Gr. A, HD Galv. 5/16"-18 HD Galv. 800
Add to
Quote
428058 5/16"-18 x 2-3/4" Carriage Bolt, A307 Gr. A, Zinc-Yellow 5/16"-18 Zinc-Yellow 600
Add to
Quote
488051 5/16"-18 x 2-3/4" Carriage Bolt, A307 Gr. A, Plain 5/16"-18 Plain 750
Add to
Quote
489051 5/16"-18 x 2-3/4" Carriage Bolt, A307 Gr. A, Zinc 5/16"-18 Zinc 750
Add to
Quote
490110 5/16"-18 x 2-3/4" Carriage Bolt, A307 Gr. A, HD Galv. 5/16"-18 HD Galv. 700
Add to
Quote
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Showing 101 to 150 of 637 results
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Showing 101 to 150 of 637 results

Model:
490034
Product:
1/4"-20 x 6" Carriage Bolt, A307 Gr. A, HD Galv.
Size:
1/4"-20
Plate:
HD Galv.
Model:
488037
Product:
1/4"-20 x 6 1/2" Carriage Bolt, A307 Gr. A, Plain
Size:
1/4"-20
Plate:
Plain
Model:
489037
Product:
1/4"-20 x 6 1/2" Carriage Bolt, A307 Gr. A, Zinc
Size:
1/4"-20
Plate:
Zinc
Model:
490107
Product:
1/4"-20 x 6 1/2" Carriage Bolt, A307 Gr. A, HD Galv.
Size:
1/4"-20
Plate:
HD Galv.
Model:
488038
Product:
1/4"-20 x 7" Carriage Bolt, A307 Gr. A, Plain
Size:
1/4"-20
Plate:
Plain
Model:
489038
Product:
1/4"-20 x 7" Carriage Bolt, A307 Gr. A, Zinc
Size:
1/4"-20
Plate:
Zinc
Model:
490108
Product:
1/4"-20 x 7" Carriage Bolt, A307 Gr. A, HD Galv.
Size:
1/4"-20
Plate:
HD Galv.
Model:
488039
Product:
1/4"-20 x 7 1/2" Carriage Bolt, A307 Gr. A, Plain
Size:
1/4"-20
Plate:
Plain
Model:
489039
Product:
1/4"-20 x 7 1/2" Carriage Bolt, A307 Gr. A, Zinc
Size:
1/4"-20
Plate:
Zinc
Model:
488040
Product:
1/4"-20 x 8" Carriage Bolt, A307 Gr. A, Plain
Size:
1/4"-20
Plate:
Plain
Model:
489040
Product:
1/4"-20 x 8" Carriage Bolt, A307 Gr. A, Zinc
Size:
1/4"-20
Plate:
Zinc
Model:
490109
Product:
1/4"-20 x 8" Carriage Bolt, A307 Gr. A, HD Galv.
Size:
1/4"-20
Plate:
HD Galv.
Model:
488042
Product:
5/16"-18 x 5/8" Carriage Bolt, A307 Gr. A, Plain
Size:
5/16"-18
Plate:
Plain
Model:
489042
Product:
5/16"-18 x 5/8" Carriage Bolt, A307 Gr. A, Zinc
Size:
5/16"-18
Plate:
Zinc
Model:
428046
Product:
5/16"-18 x 3/4" Carriage Bolt, A307 Gr. A, Zinc-Yellow
Size:
5/16"-18
Plate:
Zinc-Yellow
Model:
488043
Product:
5/16"-18 x 3/4" Carriage Bolt, A307 Gr. A, Plain
Size:
5/16"-18
Plate:
Plain
Model:
489043
Product:
5/16"-18 x 3/4" Carriage Bolt, A307 Gr. A, Zinc
Size:
5/16"-18
Plate:
Zinc
Model:
490035
Product:
5/16"-18 x 3/4" Carriage Bolt, A307 Gr. A, HD Galv.
Size:
5/16"-18
Plate:
HD Galv.
Model:
428048
Product:
5/16"-18 x 1" Carriage Bolt, A307 Gr. A, Zinc-Yellow
Size:
5/16"-18
Plate:
Zinc-Yellow
Model:
488044
Product:
5/16"-18 x 1" Carriage Bolt, A307 Gr. A, Plain
Size:
5/16"-18
Plate:
Plain
Model:
489044
Product:
5/16"-18 x 1" Carriage Bolt, A307 Gr. A, Zinc
Size:
5/16"-18
Plate:
Zinc
Model:
490036
Product:
5/16"-18 x 1" Carriage Bolt, A307 Gr. A, HD Galv.
Size:
5/16"-18
Plate:
HD Galv.
Model:
428050
Product:
5/16"-18 x 1-1/4" Carriage Bolt, A307 Gr. A, Zinc-Yellow
Size:
5/16"-18
Plate:
Zinc-Yellow
Model:
488045
Product:
5/16"-18 x 1-1/4" Carriage Bolt, A307 Gr. A, Plain
Size:
5/16"-18
Plate:
Plain
Model:
489045
Product:
5/16"-18 x 1-1/4" Carriage Bolt, A307 Gr. A, Zinc
Size:
5/16"-18
Plate:
Zinc
Model:
490037
Product:
5/16"-18 x 1-1/4" Carriage Bolt, A307 Gr. A, HD Galv.
Size:
5/16"-18
Plate:
HD Galv.
Model:
428052
Product:
5/16"-18 x 1-1/2" Carriage Bolt, A307 Gr. A, Zinc-Yellow
Size:
5/16"-18
Plate:
Zinc-Yellow
Model:
488041
Product:
5/16"-18 x 1-1/2" Carriage Bolt, A307 Gr. A, Plain
Size:
5/16"-18
Plate:
Plain
Model:
488046
Product:
5/16"-18 x 1-1/2" Carriage Bolt, A307 Gr. A, Plain
Size:
5/16"-18
Plate:
Plain
Model:
489041
Product:
5/16"-18 x 1-1/2" Carriage Bolt, A307 Gr. A, Zinc
Size:
5/16"-18
Plate:
Zinc
Model:
489046
Product:
5/16"-18 x 1-1/2" Carriage Bolt, A307 Gr. A, Zinc
Size:
5/16"-18
Plate:
Zinc
Model:
490038
Product:
5/16"-18 x 1-1/2" Carriage Bolt, A307 Gr. A, HD Galv.
Size:
5/16"-18
Plate:
HD Galv.
Model:
488047
Product:
5/16"-18 x 1-3/4" Carriage Bolt, A307 Gr. A, Plain
Size:
5/16"-18
Plate:
Plain
Model:
489047
Product:
5/16"-18 x 1-3/4" Carriage Bolt, A307 Gr. A, Zinc
Size:
5/16"-18
Plate:
Zinc
Model:
490039
Product:
5/16"-18 x 1-3/4" Carriage Bolt, A307 Gr. A, HD Galv.
Size:
5/16"-18
Plate:
HD Galv.
Model:
428055
Product:
5/16"-18 x 2" Carriage Bolt, A307 Gr. A, Zinc-Yellow
Size:
5/16"-18
Plate:
Zinc-Yellow
Model:
488048
Product:
5/16"-18 x 2" Carriage Bolt, A307 Gr. A, Plain
Size:
5/16"-18
Plate:
Plain
Model:
489048
Product:
5/16"-18 x 2" Carriage Bolt, A307 Gr. A, Zinc
Size:
5/16"-18
Plate:
Zinc
Model:
490040
Product:
5/16"-18 x 2" Carriage Bolt, A307 Gr. A, HD Galv.
Size:
5/16"-18
Plate:
HD Galv.
Model:
488049
Product:
5/16"-18 x 2-1/4" Carriage Bolt, A307 Gr. A, Plain
Size:
5/16"-18
Plate:
Plain
Model:
489049
Product:
5/16"-18 x 2-1/4" Carriage Bolt, A307 Gr. A, Zinc
Size:
5/16"-18
Plate:
Zinc
Model:
490041
Product:
5/16"-18 x 2-1/4" Carriage Bolt, A307 Gr. A, HD Galv.
Size:
5/16"-18
Plate:
HD Galv.
Model:
428057
Product:
5/16"-18 x 2-1/2" Carriage Bolt, A307 Gr. A, Zinc-Yellow
Size:
5/16"-18
Plate:
Zinc-Yellow
Model:
488050
Product:
5/16"-18 x 2-1/2" Carriage Bolt, A307 Gr. A, Plain
Size:
5/16"-18
Plate:
Plain
Model:
489050
Product:
5/16"-18 x 2-1/2" Carriage Bolt, A307 Gr. A, Zinc
Size:
5/16"-18
Plate:
Zinc
Model:
490042
Product:
5/16"-18 x 2-1/2" Carriage Bolt, A307 Gr. A, HD Galv.
Size:
5/16"-18
Plate:
HD Galv.
Model:
428058
Product:
5/16"-18 x 2-3/4" Carriage Bolt, A307 Gr. A, Zinc-Yellow
Size:
5/16"-18
Plate:
Zinc-Yellow
Model:
488051
Product:
5/16"-18 x 2-3/4" Carriage Bolt, A307 Gr. A, Plain
Size:
5/16"-18
Plate:
Plain
Model:
489051
Product:
5/16"-18 x 2-3/4" Carriage Bolt, A307 Gr. A, Zinc
Size:
5/16"-18
Plate:
Zinc
Model:
490110
Product:
5/16"-18 x 2-3/4" Carriage Bolt, A307 Gr. A, HD Galv.
Size:
5/16"-18
Plate:
HD Galv.
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Showing 101 to 150 of 637 results

Manufacturing of A307 Grade A Carriage Bolts

A307 Grade A Carriage Bolts are manufactured from low carbon steel (less than 0.25% carbon) with a minimum tensile strength of 60,000 PSI, making them ideal for a wide range of general purpose applications.  They may be supplied in a standard neck, short neck, ribbed neck, or fin neck.  They are readily available in plain finish, electro-zinc, and hot-dip galvanized.
 

Contact Us About A307 Grade A Carriage Bolts Today

Call Empire Bolt & Screw or send us a Request for Quote on your A307 Grade A Carriage Bolt needs today.
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