Founded in 1975 by Don “Stoney” Stonebrook, Stonebrook Machine Inc. manufactures special fasteners and complex per-print parts in-house. The Eastlake shop began by reworking standard fasteners and now handles work from prototypes and short runs to thousands of pieces, with CNC programmers and machinists supporting production. Its thread-gage inspection and proprietary shop and inventory system help maintain fit, traceability, and consistent lead times.
DFARS Compliant
Compliance program
Kelko Products CompanyFor more than three decades, Lorain-based Kelko Products Company has manufactured custom fasteners, double-end stud bolts, and CNC-turned components for demanding industrial applications. The company combines automatic screw machines and custom threading equipment with in-house machining and finishing, and handles everything from single prototypes to runs of 10,000 parts. Kelko serves customers across the United States and Canada, with quality inspections throughout production and documentation available for materials, testing, and specified standards.SANDUSKY, OH
East Coast Metals, IncFounded in 1977, East Coast Metals, Inc. is a privately held Pennsylvania corporation that manufactures specialty custom fasteners. The company says it serves customers worldwide and can produce orders ranging from a one-piece prototype to thousands of pieces.HARLEYSVILLE, PA
Earnest MachineFrom a small Cleveland machine shop in 1948, Earnest Machine has grown into a family-owned supplier of industrial fasteners with custom machining capabilities. Today, third-generation president Kirk Zehnder carries forward the company’s long relationship with heavy-equipment customers while guiding operations from distribution centers in the United States and the United Kingdom. Earnest Machine’s product quality system is certified to ISO 9001:2015.ROCKY RIVER, OH
TRIHEX Custom Manufacturing IncEstablished in 1979, TRIHEX Custom Manufacturing makes precision fasteners for niche markets from its U.S. operation. The company is particularly known for hard-to-find socket set fasteners, produced on automatic screw machines and available from stock for immediate delivery. TRIHEX also customizes fasteners to customer print specifications and builds them to ASME, ANSI, and DIN standards.WILLIAMSON, NY