ENDRIES KNOWLEDGE BASE
Less searching. More certainty.
Practical guidance to select, specify, and apply fasteners with confidence.
brochures & flyers
A collection of brochures and flyers covering key fastener insights, product comparisons, and company resources, designed to help you make informed decisions and support your team with practical, downloadable guides.
conversion
charts
Designed to support precision engineering and manufacturing, this collection offers quick-reference conversions for drill sizes, thread dimensions, steel hardness, and U.S.-metric equivalents—empowering professionals to make accurate, data-driven decisions.
fastener engineering specs: inch
Built to support precision fastening applications, this collection delivers essential inch-based engineering specifications, covering grade identification, tensile stress areas, thread pitch combinations, bent bolt requirements, self-drilling screw guidelines, and tool selection.
fastener engineering specs: metric
Built for precision and reliability in metric fastening applications, this collection provides essential engineering specifications, covering tensile stress areas and the proper mating of metric screw and nut property classes—ensuring strength, compatibility, and performance.
hole sizes
Engineered for precision fastening, this collection provides critical hole size specifications for sheet metal applications, including recommendations for thread-forming, thread-cutting, and high-performance thread rolling screws—ensuring optimal fit, strength, and performance in metal assemblies.
materials
Providing material insights for fastening applications, this collection covers galvanic corrosion behavior, gauge thickness tolerances, material selection based on galvanic reactions, chemical compositions of steels and alloys, and the AISI/SAE numbering system—ensuring informed choices for durability and performance.
REACH, RoHS, RoHS2
This area provides a detailed overview of environmental compliance regulations, including REACH, RoHS, and RoHS 2, detailing restrictions on hazardous substances, material safety standards, and industry initiatives to ensure regulatory adherence in global manufacturing and supply chains.
Stainless steel
This collection outlines the chemical composition and key characteristics of stainless steels, providing essential insights into material properties, corrosion resistance, and performance considerations for industrial and fastening applications.