Lag Bolts

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, Aircraft Aluminum
Grades 1, 2, 5, 7, and 8
Tolerances +/-.001ʺ

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Product Description

High-quality Lag Bolts for all Types of Industrial and Commercial Projects

Lag bolts are mainly referred as lag screws because they look more like screws than bolts. These screws are distinguished by their pointed ends, unlike the blunt ends of other bolts. The lag bolts are used in the home, as well as construction projects. Norwood Screw Machine provides these bolts in a variety of material for diverse applications.

Lag Bolts Specifications

Lag bolts are most often used to link components to each other.  These bolts are versatile and used in various industrial projects, too. We provide lag screws in the following specifications:

  • Head Types: Oval, round, round washer, hex washer, hex flange, flat, fillister
  • Length: From .010 to 24ʺ
  • Tolerance: +/-.001ʺ
  • Diameter: from .010 to 3ʺ
  • Micro Finish: 16
  • Thread Types: UNC, UNF, Acme, Machine
  • Materials: Brass, Stainless Steel, Carbon Steel, Alloy Steel, Aluminum, Aircraft Aluminum, Plastics including Nylatron, Delrin, Nylon, and PTFE

Applications Using Lag Bolts

The following are some of the applications where lag bolts are used more often than others:

  • Furniture and Cabinetry
  • Construction
  • Mining and Civil Engineering
  • Bridges
  • Railway Trestles
  • Barn Construction

If you have any queries regarding the uses of lag bolts or other best seller fastener products, please contact us at our toll-free number 1-800-437-6644. You can 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.