PennAero has announced the completion of its acquisition of TriMas Corporation’s aerospace assets, bringing together two established manufacturers to form a broader and more capable independent supplier serving the global aerospace, defence, space and advanced energy markets.
The addition of the TriMas Aerospace businesses significantly enhances PennAero’s product portfolio and engineering capabilities. For existing customers of both organisations, operations will continue as usual, now supported by greater resources, expanded capabilities and a stronger long-term partner. For companies seeking an independent alternative to the industry’s largest consolidators, PennAero now offers a scaled and competitive option.
The TriMas Aerospace companies joining PennAero include Monogram Aerospace Fasteners, Allfast Fastening Systems, Mac Fasteners, TFI Aerospace, Martinic Engineering, RSA Engineered Products, Weldmac Manufacturing Company and TAG (formerly TriMas Aerospace Germany). Each of these businesses brings longstanding customer relationships and deep engineering expertise across major global commercial and defence programmes.
PennAero manufactures externally threaded structural fasteners, gears, latches, manifolds and precision components for airframe and engine manufacturers, supporting Boeing, Airbus and other leading OEMs. In addition, the company produces high-performance components for the semiconductor and space sectors.
With engineering and manufacturing operations spanning North America, Europe and Asia, the combined organisation is well positioned to deliver enhanced scale, technical capability and global reach, strengthening its role as a key independent supplier in the aerospace and advanced manufacturing industries.

























