PennEngineering makes engineered fastening solutions for metal sheets, panels, circuit boards and other demanding assemblies, with the PEM® brand at the center of its work. Headquartered in Danboro, Pennsylvania, the company combines manufacturing and engineering support across North America, Europe and Asia with services such as in-house testing, product teardowns and prototype production. Its fasteners are used in applications ranging from automotive electronics and electric-vehicle charging to servers, medical equipment and aerospace electronics.
ISO 9001
AS9100
IATF 16949
Nadcap Accreditation
QSLM Approval
STANLEY Engineered FasteningWith more than 100 years of fastening expertise, STANLEY Engineered Fastening develops fastening solutions and intelligent assembly systems for manufacturers. A Stanley Black & Decker company, it combines global engineering support with more than 2.5 million square feet of facilities worldwide and a portfolio that includes legacy brands such as Nelson, Tucker, and POP. Its systems serve demanding applications ranging from electric vehicles and aerospace to industrial production.ELYRIA, OH
BultenFounded in 1873 to develop standardized fasteners, Sweden-based Bulten now designs and manufactures fastening solutions for products ranging from vehicles to consumer electronics. The company combines in-house production with engineering, prototyping, logistics and its Full Service Provider model, taking responsibility for fasteners from development through delivery. With about 1,900 employees, eight wholly owned manufacturing sites and operations in 19 countries, Bulten brings more than 150 years of fastening experience to customers worldwide.STREETSBORO, OH
Keystone Fastening TechnologiesFor more than 37 years, Keystone Fastening Technologies has built stud-welding systems and specialty fasteners from its Wexford, Pennsylvania operation, serving customers worldwide. The company is the proud North American partner and exclusive distributor of OBO Bettermann stud-welding products, while its prototyping lab develops custom solutions through cold heading, turned-part and CNC capabilities. Keystone also supports its equipment in-house with repair, rebuild, loaner and rental services.WEXFORD, PA
OptiTorque Technologies LLCOptiTorque Technologies LLC is a Penn Yan manufacturer known for developing high-strength fastening solutions for demanding industrial applications. The company serves OEM customers and custom-engineered projects, with in-house design, production, and testing suited to both prototypes and larger runs.PENN YAN, NY