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Carriage Bolts
A wide range of grades
& sizes for your most
demanding applications.  

Carriage Bolts offer easy installation and versatility when assembling a variety of building materials such as wood, plastic, or hardened steel. Earnest Machine stocks Carriage Bolts in a wide range of grades, sizes, and finishes, which can be  used in high-stress plow or

low-stress wood applications.  

 

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specification sheet here >> 

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about the features and benefits 

of Carriage Bolts >>

Features 

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Low-Profile Head 

Carriage Bolts are designed with a smooth, low-profile head, which allows for materials to easily pass over their tops without damage. This style of head is also aesthetically pleasing and adds a finished or decorative look to any application.  

 

 

 

 

 

Greater Load Distribution

Thanks to their large diameter head, Carriage Bolts will distribute the clamping load across a wider area and will resist being pulled through softer building materials such as wood. 

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Square Neck 

Carriage Bolts feature a square neck that prevents the bolt from turning when tightening the nut during installation. The square neck design also helps draw the bolt into softer installation materials, locking the bolt in place, creating a secure bond between the fastened components in your assembly. 

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Alternative names for this product

Carriage Bolts can sometimes be called...

 

Shaker Screen Bolt

Round Head Square Neck Bolt

Mushroom Head Square Neck Bolt

Cupped Head Bolt

 

 

 

 

Carriage Bolt Applications
Snow Plow Assembly
Mining & Quarry Applications
Construction Equipment
Wood Construction & Carpentry

Popular sizes & finishes ready-to-ship 

  

Earnest Machine stocks Carriage Bolts in inch sizes ranging from 1/4" to 3/4" and metric sizes ranging from M6 to M12, in

a variety of grades and plating options which include Plain, Zinc Clear, & Zinc Yellow.

 

Inch Carriage Bolts

Grade 8 Carriage Bolts 

Grade 5 Carriage Bolts

Grade A Carriage Bolts 

 

Metric Carriage Bolts

Class 8.8 Carriage Bolts 

 

 

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Additional Carriage Assembly Product

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Plow Bolts

Ribbed Neck Carriage Bolts

 

Hex Nuts

Nylon Insert Lock Nuts

All Metal Lock Nuts