About Perigee Manufacturing

A Brief History of Perigee Manufacturing

In 1965, Perigee Manufacturing Company, Inc. was founded by Patrick J. Topolewski in Detroit, Michigan. Perigee Manufacturing began with 1 Acme-Gridley screw machine and 1 Warner-Swasey turret lathe in a small 3,000 sq.-ft. building. In 1977, Patrick brought in his son, Michael, to help out as business continued to grow. In 1981, Michael became president and expanded the operations to accommodate nearly 35,000 sq.-ft. of building to house 19 screw machines, 18 nut tappers, 12 nut slotters, and a full complement of presses, drills, grinders, lathes and other secondary equipment. Michael brought in his son Michael in 1999 and his son Timothy in 2004. In recent years, Perigee Manufacturing has added CNC machining capabilities and a full packaging line to increase our breadth in the fastener market.

About Us

Perigee Manufacturing, a family owned and operated company, specializes in Hexagon Nuts Milled from Bar. Our unique manufacturing and process capabilities allow us to satisfy even the most demanding product requirements.


Perigee Manufacturing is the industry nut slotting specialist, with expertise in slotting, de-burring, re-tapping and finishing your supplied product to drawing or specification. From slotted nuts to all-metal (Marsden) lock nuts to non-standards (to drawing or specification); Perigee Manufacturing is capable of tailoring your product to ensure a superior quality fastener with best-in-industry lead time.


Perigee Manufacturing is dedicated to providing customers with product of the highest quality, on time, every time. By utilizing stringent process controls, combined with our on-site test and inspection lab, Perigee Manufacturing achieves full compliance with all state-of-the-art quality standards and government safety and regulatory requirements. Statistical methods & analysis, advanced quality planning and continuous improvement coupled with our knowledge base allow us to attain these goals.

Custom-Made Fasteners

While cold forming is capable of producing large quantities of fasteners, it is not cost effective for lower volumes. From 1 piece to 250,000 pieces, Perigee Manufacturing will satisfy your requirements. With the incorporation of a dedicated packaging line, your finished product can be manufactured, bagged, labeled and barcoded w/ RFID encoding to meet your requirements. Perigee Manufacturing is truly a one-stop shop.

Our team

Please let us know how we can help you

  1. Michael F. Topolewski
  2. Sales
  3. Quality Control
    Quality Control


What we can do for your company and application

Perigee Manufacturing Company, Inc. is a domestic manufacturer of screw-machined and CNC-machined product, primarily hexagon, square, and round nuts.

Perigee Manufacturing manufactures small, medium and large volumes in standard and special patterns. Our specialty is slotted and castellated hexagon nuts; also, finished full, jam, heavy, thick, wheel, barrel, all-metal lock, Marsden lock, dynamic lock, cap/acorn, airframe, check, test, tamper-proof, breakaway, panel, sleeve, spacer and various other styles of nuts. Perigee Manufacturing also provides secondary slot milling for customer supplied hexagon nuts in large volumes for the automotive and heavy truck industries and prototype machining capabilities for custom and special requirements.

Perigee Manufacturing supplies the following industries/markets: Commercial, Automotive, Automotive Aftermarket, Heavy Truck, Defense/Military, Aerospace, Agricultural, Industrial and Construction. Perigee Manufacturing’s QMS is ISO 9001:2008 and has been certified to the Defense Logistics Agency's Qualified Suppliers List (QSLM) as an approved defense manufacturer since 2002 (CAGE 1X4X7).

Raw materials manufactured at Perigee:

Size range manufactured at Perigee:

Perigee Manufacturing provides full certification with every order and can furnish all PPAP levels upon request. Finished product can be expedited, manufactured, and certified within one to two weeks on small and medium volume orders.


Please contact us


7519 Intervale St.
Detroit, MI 48238

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Positions available, Contact us at jobs@perigeemfg.com

Looking for a career in manufacturing with competitive pay and benefits? Perigee Manufacturing is looking for new and experienced workers. From machine operators to screw machine setup, Perigee Manufacturing has an opening for the following positions.

Job Position 1: Machine Operator

Job Position 2: Screw Machine Setup

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