What PBFasteners does

PB Fasteners is a precision aerospace fastener manufacturer founded in 1967 by Paul R. Briles and headquartered in a 95,000 sq. ft. single-building facility in Gardena, California. The company operates as a division of PCC Fasteners under Precision Castparts Corp. (NYSE: PCP), Berkshire Hathaway's largest aerospace subsidiary. PB Fasteners specializes in airframe structural nuts, bolts, screws, pins, fuse pins, and clevis bolts manufactured to MS, NAS, and customer-specific standards, alongside two proprietary integrated fastening systems — Taper-Lok® (40+ years in service) and SLEEVbolt® (100+ million flight hours accumulated without incident) — that provide interference fit fatigue enhancement and composite hole-fill solutions.

The company's technology stack is centered on vertically integrated aerospace-grade manufacturing, with all processes — hot/cold heading, thread rolling, machining, grinding, heat treating, plating (cadmium, nickel cadmium, passivation), and non-destructive testing (MT, PT) — performed in-house. Materials processed include 8740, H11, and PH13-8Mo steels, Ti 6Al-4V titanium, Inconel® 718, and MP35N® and MP159® multiphase alloys, with fastener sizes from 4-40 thread to over four inches in diameter. Testing infrastructure includes a 1,200,000 lb shear tester, five 200,000 lb fatigue machines, and full metallurgical capabilities supporting hydrogen embrittlement and stress durability testing. The company holds ISO 9001:2015/AS9100, ISO-IEC 17025, and Nadcap certifications.

PB Fasteners generates revenue through B2B direct sales to aerospace OEMs and Tier 1 suppliers via an RFQ-based procurement process with long-tenured contractual supply arrangements. Customers include Boeing, Lockheed Martin, Northrop Grumman, Honeywell, Bell Helicopter, and BAE Systems, with proprietary products flying on the F-22, F/A-18, C-17, B-1, B-2, 787, 747, 767, A380, and NASA Space Shuttle. Pricing is determined per RFQ based on specifications and quantities; no public pricing exists. The business model combines build-to-print standard fastener sales with licensing-like premium positioning for Taper-Lok® and SLEEVbolt®, the latter representing the company's primary differentiation in fatigue-critical and composite airframe applications.

Name

PBFasteners

Legal name

PB Fasteners (division of Precision Castparts Corp.)

Website

https://pbfasteners.com

Company type

Public

Founded year

1967

Operating status

Operating

Short description

PB Fasteners is a precision aerospace fastener manufacturer founded in 1967, operating from Gardena, California as a division of PCC Fasteners under Precision Castparts Corp. The company produces proprietary Taper-Lok® and SLEEVbolt® integrated fastening systems and standard MS/NAS structural fasteners for defense and commercial aerospace OEMs.

Ownership category

akta.pro rank

Product category

Aerospace Fasteners Manufacturing

NAICS

Bolt, Nut, Screw, Rivet, and Washer Manufacturing (332722), Aerospace Product and Parts Manufacturing (33641)

SIC

Bolts, Nuts, Screws, Rivets & Washers (3452)

akta.pro primary industry

Aerospace Fasteners & Hardware (IMABANAA)

Keywords

• Aerospace fasteners
• Structural bolts nuts
• Interference fit fasteners
• Airframe hardware
• Precision aerospace manufacturing

Headquarters

HQ city

Gardena

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Aerospace Fastener Manufacturing: PB Fasteners generates revenue through the manufacture and sale of precision aerospace fasteners including structural bolts, nuts, screws, fuse pins, and specialty fasteners. Products are sold as both standard (MS and NAS Standards) and custom build-to-print components. Revenue is derived from long-term supply contracts with aerospace OEMs and aftermarket replacement parts.
2. Proprietary Fastening Systems: Sale of proprietary fastening systems (Taper-Lok® and SLEEVbolt®) under licensing arrangements with aerospace manufacturers. These proprietary products command premium pricing due to their proven performance and represent a significant portion of revenue.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

PB Fasteners manufactures precision aerospace fasteners including structural bolts, nuts, screws, fuse pins, and specialized fastening systems for airframe applications. The company is best known for its proprietary Taper-Lok® and SLEEVbolt® fastening systems used to enhance structural performance and manage electromagnetic effects in composite and multi-metal airframe structures. All products are build-to-print or produced to MS/NAS standards in a 95,000 sq. ft. single-building facility in Gardena, California.

Product overview

PB Fasteners is a precision aerospace fastener manufacturer specializing in structural nuts, bolts, and specialized fastening systems. The company's product portfolio centers on two proprietary integrated fastening systems—Taper-Lok® and SLEEVbolt®—which provide interference fit solutions for fatigue enhancement and electromagnetic effects management in composite and multi-metal airframe structures. Supporting these flagship products is a comprehensive line of standard aerospace fasteners including fuse pins, screws, nuts, pins, clevis bolts, and eye bolts manufactured to MS and NAS standards. All products are manufactured in-house at the company's 95,000 sq. ft. facility in Gardena, California, with capabilities spanning hot/cold heading, thread rolling, machining, grinding, heat treating, plating, and non-destructive testing.

Differentiator

Problem solved

Functional benefit

Brands

• Taper-Lok®: Integrated fastening system used specifically for interference fit applications. Comprised of a tapered, conical-shank fastener installed into a precision tapered hole. The static preload, radial compression, and peripheral tension induced by the interference fit effectively reduces stress amplitude to proportionately enhance fatigue life. Has been in service for more than 40 years with proven effectiveness over full aircraft life cycles.
• SLEEVbolt®

Products and services

• Taper-Lok® Fastening System An integrated fastening system for interference fit applications comprising a tapered, conical-shank fastener installed into a precision tapered hole. Reduces stress amplitude to enhance fatigue life in airframe structures. Proven effective over full aircraft life cycles including B-52, C-130, C-141, 707, 727, DC-10, MD-11, A380.
• SLEEVbolt® Fastening System A two-piece assembly consisting of a tapered bolt and an internally tapered flanged outer sleeve used for interference fit applications requiring fatigue enhancement or as a hole fill fastener in composite type applications. Accumulated over 100 million flight hours without incident on platforms including F-22, F/A-18, C-17, B-1, B-2, 787, 747, 767 and NASA's Space Shuttle.
• Fuse Pins (Breakaway Safety Bolts) Breakaway safety bolts used in aero engine and landing gear attachments as safeguards to ensure these systems move in a predetermined direction when overloaded, such as during an emergency belly landing. Full line manufactured to meet OEM requirements.
• Structural Bolts Aerospace-grade structural bolts manufactured in various configurations including hex, 12-point, 12-spline, and tee heads. Available in materials such as 8740, H11, PH13-8Mo steel, Ti 6Al-4V, Inconel 718, MP35N, and MP159. Produced to MS, NAS, and customer-specific standards.
• Aerospace Nuts Airframe structural nuts manufactured in 12-point and other configurations, produced in various materials including titanium, Inconel, and specialty alloys for aerospace structural applications.
• Aerospace Screws Aerospace screws manufactured in multiple styles and recess configurations including Torq-Set, Phillips, Tri-Wing, and Torx, produced on a build-to-print basis.
• Pins and Clevis Bolts Precision aerospace pins and clevis bolts manufactured in various configurations and materials for airframe structural applications.
• Eye Bolts Aerospace-grade eye bolts manufactured in Dee style configuration with various material options for structural attachment applications.

Quantifiable outcome

• Over 100 million flight hours accumulated without incident on SLEEVbolt® installations
• +1 more outcomes

Named customers6 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators7 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Shur-Lok: PCC Fasteners division producing high-performance aerospace fastening systems and latches for airframe structures. Directly comparable as a sister PCC fastener manufacturer with structural aerospace focus.
• SPS Technologies: Sister company under PCC Fasteners producing aerospace fasteners and engineered components. Directly comparable as a fastener manufacturer serving the same OEM primes with overlapping structural fastener portfolios.
• Fatigue Technology: Sister company under PCC Precision Engineered Components, specializing in fatigue-enhancing aerospace fastener processes (split-sleeve coldworking). Highly comparable given shared focus on extending aerospace fatigue life through engineered fastening.
• TriMas Aerospace (Monogram Aerospace Fasteners): Monogram Aerospace Fasteners, part of TriMas Aerospace, produces aerospace blind bolts, lockbolts, and specialty fasteners. Directly competitive in the aerospace specialty fastener segment with structural applications.
• Lisi Aerospace: Lisi Aerospace is a major manufacturer of aerospace fasteners and structural components, including specialty hi-shear and proprietary fastening systems, serving the same Boeing/Lockheed/Airbus OEM customer base as PB Fasteners.
• AVK Industrial Products: Sister company under PCC Fasteners producing aerospace threaded inserts and fastening components. Comparable in serving the same OEM primes with engineered fastening solutions.
• Cherry Aerospace: Sister company under PCC Fasteners manufacturing aerospace fastening systems including blind bolts, lockbolts, and specialty fasteners. Comparable in targeting the same aerospace OEM and tier-1 supplier customers.

Emerging players

• B/E Aerospace (now part of Rockwell Collins/Collins Aerospace): Collins Aerospace has expanded into cabin and structural fasteners via acquisitions. While broader in scope, their structural fastener offerings overlap with PB Fasteners' aerospace structural fastener focus.

Broad incumbents

• Howmet Aerospace: Howmet Aerospace produces aerospace fasteners (legacy Alcoa/Arconic fastening systems) and engine components. A larger incumbent operating broadly across aerospace, but its fastener business directly overlaps with PB Fasteners' structural fasteners.
• Arconic: Arconic is a larger aerospace and industrial parts manufacturer with fastener offerings (titanium, aluminum aerospace fasteners). Broader portfolio than PB Fasteners but directly competitive in the aerospace structural fastener category.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/pb-fasteners

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

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 PBFasteners