Phone: 1-586-200-1017 1-586-200-1017
FAX: 1-586-200-1018 1-586-200-1018
Cold Headed Bolts
ISO Certified
Made in USA

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Thread Rolling Services

ISO 9001: 2008 Threading & Thread Rolling Services for Bolts and Fasteners
External Thread Forms
Strong - Uniform - Smooth - Exact

Macomb Bolt can offer time and cost savings with its low overhead, to be your single source custom fastener supplier. Using high-tech quality control processes to ensure all thread rolling services, Macomb Bolt can deliver top quality bolts and fasteners, customer satisfaction, and efficient production times. We take great pride that our bolts and fasteners are "Made in the USA", manufactured in Marine City, Michigan.

We also have diamond and straight knurling services to your custom specifications.

  • Carriage Bolts
  • Thread Rolled Screws 3
  • Standard Sizing Chart
  • Click to View the Metric Sizing Chart
standard-sizes-fastener-chart
metric-sizes-fastener-chart

Types of Bolts and Fasteners Manufactured:

  • Thread Rolled Bolts
  • Thread Rolled Studs
  • Thread Rolled Screws
  • Cold Headed Fasteners
  • Thread Rolled Fasteners
  • Custom Bolts
  • Rivets
  • Weld Studs
  • Projection Weld Studs
  • Hex Flange Studs
  • Weld Bolts
  • Weld Pins
  • Locator Pins
  • Staking Studs
  • Projection Weld Pins
  • P-Points
  • Metric & Standard Fasteners

Materials Include:

  • C - 1010 - 4037
  • Carbon steel
  • Alloy
  • Stainless steel
  • Brass
  • Aluminum

Threading Capabilities Include:

  • Metric Fasteners
  • Acme Threads
  • Stub Acme
  • Trapezoidal Metric
  • Modified Buttress
  • Worms
  • Right, Left Hand
  • Single and Multiple Lead

Common Threads Rolled:

  • Class 2A
  • Class 3A in UNF, UNC, UNJF
  • UNJC

Thread Rolling Applications:

  • Automotive
  • Machine Tool
  • Construction
  • Metalworking
  • Agriculture
  • Computer
  • Medical
  • Mining
  • Fluid power
  • Transportation/Railroad
  • Utility
  • Marine
  • Energy

Email us your drawing using the form on the left, or call and we'll discuss your ideas to create a custom bolt or fastener to your exact needs.

The Thread Rolling Process:

Thread rolling, in general terms, creates the thread on a metal rod blank, through cold forming, by applying uniform pressure and rotating it through two dies. The dies are imprinted with the reverse of the thread form specification. The thread rolling process literally "squeezes" the metal into the desired thread. It's a process that has been around for over one hundred years.

A key feature of thread rolling is that no material is removed during the rolling process, eliminating one of the inherent weaknesses of cut or ground threads. The cold formed properties include a higher density of material grains, or molecules, especially where they have been compacted along the lower flank of each thread pitch and in the root of the thread.

Our thread rolling services may be a more cost effective alternative for bolt applications that involve hardened material, high surface finish, and surface integrity as well as production volumes.

  • Locator Pins
  • Staking Studs
  • Projection Weld Pins
  • P-Points
  • Metric & Standard Fasteners

Some of the fastener types provided through our thread rolling processes - Made in the USA:
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