Product Specification
Length .010 to 24ʺ
Diameter .010 to 3ʺ
Thread Type UNC, UNF, Acme, Machine
Material Brass, Stainless Steel, Carbon Steel, Alloy Steel, Aluminum
Machine Surface Finish Up to a 16 micro
Tolerances +/-.001ʺ

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Product Description

Post nuts are also referred to as barrel bolts, sex bolts or Chicago screws. If you are looking for the best quality, and highly durable post nuts, then Norwood Screw Machine Parts is the right place for you. With a vast experience of more than five decades, Norwood is eager to provide you the best-in-class products.

Post Nuts Specifications

We can manufacture post nuts to the following specifications for our customers: 

Features Specifications
Head Types T-Head, Button, Rivet, Flat , Oval, Grommet, Low Profile, Hex, Large Truss
Materials Brass, Aircraft Aluminum, Steel, Aluminum, Stainless Steel, Carbon Steel, Alloy Steel, Plastics
Finish Zinc, Black oxide, anodized, waxed
Diameter .010″ to 3″
Tolerances +/-.001
Machine Surface Finish Up to a16 micro

Applications of Post Nuts

Post nuts are used in a number of applications from various industries. Here are some of the applications:

  1. Military Helmets
  2. Police, Fire, Construction Helmets
  3. Railing Systems
  4. Store Fixtures
  5. Solar Panels
  6. Fitness Apparatus Assembly
  7. Sports Helmets

Norwood Screw Machine Parts has a team of experts with a vast experience in the field of post nut hardware. With our expertise, we can guide you in selecting the right nuts for your application requirements. To know more about our products, you can contact us on our toll-free number 1-800-437-6644. You can also email us at

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.