Our knowledge combination is unique and specialized. Feel free to contact us with your challenge regarding fasteners, material selection, or broken fasteners. You may even see your question confidentially featured in an article discussing the issue.
Please see the Articles page for content discussing fastener mechanical properties, engineering and design, and specific issues with products.
Polycrew's technical knowledge is very deep regarding fasteners: requirements, specifications, types and applications, failure analysis, joint design, corrosion considerations, how fasteners are made and heat treatment of fasteners. The majority of Polycrew's fastener knowledge is based in steel, stainless steel, brass/bronze, Inconel 718, A286, C276, and nylon.
With this preface, the mission of Polycrew is to educate. Simply. Fasteners are often times the last considered component in a joint and also the most overlooked or taken for granted. Be assured, the technology and requirements going into fastener manufacturing is incredible and daunting to the uneducated. Polycrew bridges the knowledge gap between fastener gurus/manufacturers and fastener users/consumers.
Use the contact tab and let Polycrew know your fastener questions!
Please contact us with any fastener related questions and we will do our best to answer those questions in the form of articles. Polycrew
P: (612)888-POLY firstname.lastname@example.org
This low carbon steel fastener suffered from an issue called adiabatic shear banding. Upon loading the head split.
This sample displayed complex fatigue loading with abrupt changes to loading conditions, i.e. (1) high cycle low load unidirectional bending to (2) high cycle low load reversed bending to (3) low cycle high load reversed bending and finally (4) sudden fast fracture.