
United Metal Products
About Us
United Metal Products is a full-service metal stamping supplier based in Detroit, Michigan. We take parts from design and prototype through production tooling and high-volume runs — all under one roof. Our capabilities include progressive stamping on mechanical presses from 60 to 600 tons, Bihler four-slide forming, flat and 5-axis laser cutting, wire EDM, in-house tool and die build and repair, robotic welding, orbital riveting, and assembly. Quality is backed by IATF 16949 and ISO 14001 certification and FARO Blue 3D scanning inspection. Proudly made in the USA, we focus on delivering quality parts at competitive pricing — including fast-turn and emergency production when schedules demand it.
Our Listings
Our Products

Progressive Metal Stampings
Progressive die stampings ranging from small washers to parts up to 2 ft long, produced on mechanical presses from 60 to 600 tons. Suited to both high-volume programs and short-turn orders.

Four-Slide Formed Parts
Strip and wire parts formed on Bihler four-slide technology, with in-line thread forming, screw insertion, and contact welding. Efficient for small and large batch sizes.
Laser-Cut Parts
Flat parts cut on a TRUMPF TruLaser 1030 and complex 3D parts on a Mazak 5-axis laser. No tooling cost, so it works well for prototypes and short runs.

Prototype Stampings
Prototype parts and development builds that move directly into production tooling, all handled in-house.
Welded & Riveted Assemblies
Robotic welding, orbital riveting, and assembly that deliver finished, ready-to-install components.
Washers & Small Fasteners
Washers and small fasteners supplied through UMP’s affiliate, Detroit Washers and Specials (DWS).

Tooling, Die Build & Repair
Tooling design and build, wire EDM, plus die maintenance, repair, and storage for customer-owned dies.
Our History
Founded in Detroit in 1946, United Metal Products has been stamping metal parts for more than 75 years. In 2007, the company was acquired by CEO Leonard MacEachern and CFO Mike Mattei. Under their ownership, UMP has expanded its capabilities and its team — adding flat and 5-axis laser cutting, wire EDM, Bihler four-slide technology, and a Coil Tech feed line for its largest press — while earning IATF 16949 and ISO 14001 certification. Today UMP also owns and operates Detroit Washers and Specials (DWS), extending its offering into washers and small fasteners.
Our Locations
United Metal Products – Headquarters & Manufacturing
Documents & Certifications
IATF 16949:2016
Automotive quality management system certification issued by NSF-ISR for United Metal Products, Detroit, MI. Scope: manufacture of small to mid-size stampings and assemblies. IATF Certificate No. 0500327 / Certificate No. 41871-TS9.
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Videos
Multi-Slide Forming in Action
An OMCG multi-slide machine running production at our Detroit plant, forming small strip and wire parts in a single continuous operation.