TriMas Aerospace

What TriMas Aerospace does

TriMas Aerospace designed and manufactured specialty engineered fasteners and precision-machined components for commercial aerospace and defense applications. The business unit operated as a division of TriMas Corporation (NASDAQ: TRS) and served OEM manufacturers and Tier-1 suppliers through direct enterprise sales relationships, with end applications spanning commercial aircraft, business jets, and military platforms. Core product lines included permanent threaded blind bolts, solid and blind rivets, collars, temporary fasteners, and installation tools, marketed under established brands Monogram Aerospace Fasteners, Allfast Fastening Systems, and Martinic Engineering.

The underlying technology centered on precision metal forming, CNC machining, gundrilling, and metal finishing processes certified to aerospace quality standards including Nadcap accreditation and ITAR registration. Manufacturing operations spanned four countries — the United States, India, Singapore, and Germany — providing geographic proximity to major OEM assembly sites and supply chain redundancy. The business earned revenue through hardware sales under quote-based B2B contracts typical of engineered aerospace components, with pricing not publicly disclosed.

On November 4, 2025, TriMas Corporation announced a definitive agreement to divest TriMas Aerospace to PennAero, a portfolio company of private investment firm Tinicum L.P., with funds managed by Blackstone Inc. participating as a minority investor. The transaction closed on March 16, 2026, at a purchase price of approximately $1.45 billion in cash, generating roughly $1.2 billion in net after-tax proceeds for TriMas. Post-close, TriMas Aerospace operates as part of the PennAero platform, which now encompasses an expanded portfolio of fastener, machined-component, ducting, and anti-vibration brands serving aerospace, defense, space, and advanced energy end markets.

Name

TriMas Aerospace

Legal name

TriMas Aerospace (operating division of TriMas Corporation)

Website

https://trsaero.com

Company type

Private

Founded year

1980

Operating status

Acquired

Headcount range

1,001–5,000 employees

Short description

TriMas Aerospace designed and manufactured specialty engineered fasteners and precision-machined components for commercial and defense aerospace OEMs and Tier-1 suppliers, operating brands including Monogram, Allfast, and Martinic with manufacturing facilities across the U.S., India, Singapore, and Germany.

Ownership category

akta.pro rank

Product category

Aerospace Fasteners and Precision-Machined Components

NAICS

Aerospace Product and Parts Manufacturing (33641), Bolt, Nut, Screw, Rivet, and Washer Manufacturing (332722), Other Aircraft Parts and Auxiliary Equipment Manufacturing (336413)

SIC

Bolts, Nuts, Screws, Rivets & Washers (3452), Aircraft Parts & Auxiliary Equipment, Nec (3728), Aircraft & Parts (3720)

akta.pro primary industry

Aerospace Fasteners & Hardware (IMABANAA)

Keywords

• Aerospace fasteners
• Precision machined components
• Aerospace manufacturing
• Blind bolts lockbolts
• Aircraft structural parts

Headquarters

HQ city

Irvine

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Aerospace Component Manufacturing: TriMas Aerospace generated revenue through the design and manufacture of engineered fasteners and precision-machined components for commercial aerospace and defense customers. The business served OEM and Tier-1 customers with recurring component supply contracts.

Go-to-market motion1 record

Distribution channels1 record

Core offering

TriMas Aerospace designs and manufactures engineered specialty fasteners and precision-machined components — including blind bolts, lockbolts, blind rivets, pins, and CNC-machined structural parts — for the commercial aerospace and defense industries. The company operates a multi-site, certified manufacturing footprint serving aircraft OEMs, Tier-1 engine/airframe suppliers, and defense primes on long-term qualification-based programs.

Product overview

TriMas Aerospace, now part of PennAero, is a provider of engineered fasteners and precision-machined components for commercial aerospace and defense applications. The portfolio includes multiple specialized brands: Monogram Aerospace Fasteners (permanent threaded blind bolts, collars, temporary fasteners), Allfast Fastening Systems (rivets, blind bolts, installation tools), Martinic Engineering (complex precision parts), Briles Aerospace (high-strength bolts), American Drilling Company (precision drilling and CNC machining), LubeCo (metal finishing and chemical processing), MAC Fasteners (male-threaded fasteners), TFI Aero (standard fasteners, T-bolts, self-locking nuts), PMI Aerospace (precision-machined components), RSA Engineered Products (aircraft ducting, seal connectors), Weldmac (metal formed components), and TAG (tie-rods, anti-vibration systems). The combined entity provides a comprehensive range of fasteners and engineered components with manufacturing footprint across the U.S., India, Singapore, and Germany.

Differentiator

Problem solved

Functional benefit

Products and services

• Monogram Aerospace Fasteners Monogram Aerospace Fasteners is a TriMas Aerospace brand that designs and manufactures specialty aerospace blind bolts, lockbolts, and high-strength fastening systems used on airframes, wings, engines, and structural sub-assemblies. The products are qualified to OEM specifications and serve commercial aerospace and defense customers that require AS9100D/NADCAP-certified flight-critical hardware.
• Allfast Fastening Systems Allfast Fastening Systems is a TriMas Aerospace brand that designs and manufactures aerospace blind rivets, blind bolts, lockbolts, and related specialty fastening systems. The brand's products are used by airframers, Tier-1 aerostructure suppliers, and defense primes where one-sided-access, high-strength, and corrosion-resistant fastening is required.
• Martinic Engineering Martinic Engineering is a TriMas Aerospace brand that produces precision CNC-machined aerospace components and assemblies for engine, airframe, and structural applications. The brand serves aerospace and defense customers that require tight-tolerance, AS9100D-certified machined hardware on qualified programs.
• Briles Aerospace Briles Aerospace is a TriMas Aerospace brand that designs and manufactures high-strength aerospace fasteners, lockbolts, and special-purpose fastening systems for commercial and defense aerospace customers. The brand's products are qualified to OEM and MIL-SPEC requirements and are used in primary and secondary structural applications.
• American Drilling Company American Drilling Company is a TriMas Aerospace brand that specializes in deep-hole gundrilling and precision drilling of aerospace components used in engine, airframe, and structural applications. The brand serves aerospace OEMs and Tier-1 suppliers that require tight-tolerance, certified drilling of difficult-to-machine alloys.
• LubeCo LubeCo is a TriMas Aerospace brand that provides aerospace-grade lubrication, sealant, and installation-related chemical products used in conjunction with aerospace fasteners and structural components. The brand's products are sold into the same commercial aerospace and defense customer base as the rest of the TriMas Aerospace portfolio.
• MAC Fasteners MAC Fasteners is a TriMas Aerospace brand that designs and manufactures aerospace fasteners and related hardware for commercial aerospace and defense applications. The brand supplies flight-critical fastening products qualified to OEM and industry specifications.
• TFI Aero TFI Aero is a TriMas Aerospace brand that supplies aerospace components and assemblies to commercial aerospace and defense customers, supporting OEM and Tier-1 supplier programs.
• PMI Aerospace PMI Aerospace is a TriMas Aerospace brand that produces aerospace components and precision hardware for commercial aerospace and defense applications, supplying OEMs and Tier-1 integrators.
• RSA Engineered Products RSA Engineered Products is a TriMas Aerospace brand that designs and manufactures engineered aerospace hardware and components for commercial aerospace and defense customers, with capabilities in tight-tolerance, certified production.
• Weldmac Weldmac is a TriMas Aerospace brand that produces welding, fabrication, and specialty aerospace hardware for commercial aerospace and defense applications.
• TAG TAG is a TriMas Aerospace brand that supplies aerospace components, assemblies, and related hardware to commercial aerospace and defense customers on qualified programs.

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• PennAero (Tinicum portfolio company)flagshipStrategic or Co-development Partner · 4 November 2025PennAero, a portfolio company of private investment firm Tinicum, acquired TriMas Aerospace assets. PennAero is a leading independent supplier of highly engineered aerospace fasteners and components. The combined entity strengthened PennAero's market position as a comprehensive aerospace components provider.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Lisi Aerospace: Lisi Aerospace is a leading global manufacturer of aerospace fasteners, structural components, and assembly solutions serving commercial and defense OEMs. It is one of TriMas Aerospace's most direct competitors in blind bolts, rivets, and engineered fasteners across the same OEM and Tier-1 customers.
• Cherry Aerospace: Cherry Aerospace (a Precision Castparts subsidiary) manufactures aerospace blind bolts, lockbolts, and blind rivets. It directly competes with Monogram Aerospace Fasteners and Allfast Fastening Systems in the same aerospace blind-bolt and rivet category serving identical OEM customers.
• SPS Technologies: SPS Technologies (owned by Precision Castparts/Berkshire Hathaway) manufactures aerospace fasteners including high-strength bolts and specialty threaded products. It is a direct peer to Briles Aerospace, MAC Fasteners, and TFI Aero in aerospace standard and specialty fasteners for OEM and Tier-1 customers.
• Howmet Aerospace: Howmet Aerospace is a large aerospace manufacturer producing engine components, fasteners, and structural parts. Its aerospace fasteners business directly competes with TriMas Aerospace's Monogram, Allfast, Briles, and TFI brands across commercial and defense OEM fastener programs.
• Stanley Aerospace (Stanley Black & Decker): Stanley Black & Decker's industrial segment includes aerospace fastener and component manufacturing operations. It directly competes with TriMas Aerospace's MAC Fasteners and TFI Aero in aerospace standard and specialty threaded fasteners serving commercial and defense customers.

Broad incumbents

• Precision Castparts Corp: PCC (Berkshire Hathaway subsidiary) is one of the largest aerospace components manufacturers globally, with major fastener operations including Cherry Aerospace and SPS Technologies. It is a broad incumbent competing with TriMas Aerospace across multiple fastener categories and serving the same OEM and Tier-1 customer base.
• Meggitt (Collins Aerospace): Meggitt (now part of Collins Aerospace/RTX) manufactures aerospace components including specialty fasteners, seals, and engineered systems. It is a broad incumbent with overlapping aerospace fastener and component capabilities serving similar OEM and defense customers as TriMas Aerospace.
• Senior plc: Senior plc is a UK-based manufacturer of engineered components and fluid conveyance systems for aerospace and defense. Its aerospace fluid conveyance and engineered component operations overlap with RSA Engineered Products (ducting, seal connectors) and TriMas Aerospace's broader engineered component portfolio.
• Triumph Group: Triumph Group designs, engineers, manufactures, and repairs aerospace components and structures. Its aerospace structures and component business competes with TriMas Aerospace's precision machined and engineered component brands (PMI, Weldmac, Martinic) across the same OEM programs.
• Ducommun: Ducommun is an aerospace and defense manufacturer producing structural and electronic components. Its engineered products business overlaps with TriMas Aerospace's precision machined components, structural parts, and assemblies serving commercial and defense aerospace customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/trimasaerospace
• Xx.com/trsaerospace
• Facebookfacebook.com/TRSAerospace

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries3 records

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about TriMas Aerospace