Affiliations and Links

AISI American Iron and Steel Institute
ANSI American National Standards Institute
ASME American Society of Mechanical Engineers
ASTM American Society for Testing and Materials
BSI British Standards Institution
DIN Deutsches Institut fur Normung e.V.
IFI Industrial Fasteners Institute 
ISO International Organization for Standardization
SAE Society of Automotive Engineers
MAFDAMid Atlantic Fastener Distributors Association