Specialists in High Quality, Low Cost Stampings

Nut & Washer Assemblies

Progressive Stamping Company has remained focused on one goal since our inception in
the early 1960’s. Our professionals are here to creatively solve our customer's problems while providing exceptional quality at competitive prices.

The Nut and Washer assemblies manufactured by Progressive Stamping consist of specialty nut and stamped washer.These products have typical applications in seating, chassis and suspension.


These products are typically referenced as Keps Nuts and consist of:

  • Flat Washers
  • Conical Washers
  • Nuts (M5-M24)
  • Bushings

The washers commonly used in this application are manufactured from ferrous materials primarily using high carbon steel and low carbon steel. We process gages ranging from .5mm (.020 in.) to 8 mm (.314 in.) in Compound Dies, Progressive Dies and Modified Form Stamping Dies.

Progressive Stamping has developed the ability to manufacture and procure these products based on your needs. If you have a problem, we can solve it!

  • Internally, Progressive utilizes its stamping equipment along with a custom, automated assembly machine to assemble the washer and nut.
  • Internationally, Progressive maintains strong alliances with strategic manufacturing partners to produce these products.

Regardless of their point of origin, Progressive employs exceptional quality control procedures along with logistical control to ensure all products meet and exceed our customer’s expectations.

Typically, products of this type will require additional processing after they have been assembled such as:

  • Heat Treatment
  • Paint
  • Plating
  • Sealers
  • Adhesives
  • Isolation Bushings through adhesives and Shrink Bonding
  • Testing

The depth of expertise at Progressive Stamping allows us to provide a very wide range of products and processes to meet your needs without sacrificing quality, timing, service or cost.

When you need your manufacturing problems solved with on-time delivery and exceptional quality we are the company to call. We will not just meet your needs, we will exceed them!


Progressive Stamping Co.
2807 Samoset • Royal Oak, MI 48083-1795
Tel: 313-299-7100• Fax: 313-299-7110

Products: Flat & Conical Washers | Nut & Bolt Retainers & Washers | Cam Assemblies | Vibration Isolator Assemblies
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