Carriage Bolts

Product Specification
Length .010 to 24ʺ
Diameter .010 to 3ʺ
Head Type Hex, Indented Hex, Headless, Button, Flat, Pan, Round, Square, Socket and Fillister
Micro-Finish 16
Thread Types UNC, UNF, Acme, Machine
Tolerances +/-.001ʺ

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Product Description

Best Quality Custom Carriage Bolts in Various Specifications

Carriage bolts are one of the important types of threaded fasteners in use today. These fasteners are distinguished by their domed heads placed on a square base. The bolts are designed to be used with a nut. These bolts are available in an assortment of standard diameters, lengths, and thread pitches. The carriage bolts are available in abundant varieties. Norwood Screw Machine Parts provides high quality carriage bolts in various specifications for diverse applications. 

Norwood’s Custom Carriage Bolt Specifications

Carriage bolts are pushed into a hole with the same diameter as the shank. The bolt is hammered into the place after securing with square shoulder locks. These carriage bolts are often used in applications where smooth surface finishes are required. We provide these screws in the following specifications.

  1. Head Types: Hex, Indented Hex, Headless, Button, Flat, Pan, Round, Square, Socket and Fillister
  2. Grades: 1, 2, 5, 7, and 8
  3. Length:From .010 to 24ʺ
  4. Thread Types:UNC, UNF, Acme, Machine
  5. Tolerance:+/-.001ʺ
  6. Diameter: from .010 to 3ʺ
  7. Micro Finish:16
  8. Materials:Brass, Stainless Steel, Carbon Steel, Alloy Steel, Aluminum, Aircraft Aluminum, Plastics including Nylatron, Delrin, Nylon, and PTFE

Application of Norwood Custom Carriage Bolts

Our carriage bolts are used in a variety of applications such as:

  1. Chain link fences
  2. Ready to assemble furniture
  3. Machinery assembly
  4. Automobiles

If you have any queries regarding carriage bolts and our industry-grade fastener products, please contact us at our toll-free number 1-800-437-6644. You can also send us an email to

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Industries Served

About Norwood Screw Machine

Norwood is a privately owned custom screw machine parts manufacturer. For over 59 years we serve some of the largest corporations to the small company with a new product to develop. Whether a unique item with a one time requirement or a long running contract order with scheduled deliveries, Norwood Screw Machine Parts is the right choice for the job.



Quality Control

We know that we are - and should be - judged by how quickly, accurately and cost-effectively we meet our customer's needs. Our in-house quality assurance team begins the process with the receipt of an order. They maintain close communications with customers to ensure that customer goals are clearly understood and completely achieved.