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It was founded as the American Institute of Bolt, Nut and Rivet Manufacturers in 1931 and changed its name to the IFI in 1949. [2] Among their publications is the frequently cited IFI Fastener Technology Handbook , a reference frequently used as a design guide by mechanical engineers , machinists , and others involved in the production of high ...
ISO general purpose metric screw threads – Part 13: Selected sizes for screws, bolts and nuts from 1 to 52 mm screw thread diameter and limits of sizes: Active: DIN 13-19: ISO general purpose metric screw threads – Part 19: Nominal profiles: Active: DIN 13-20
ISO 898 is an international standard that defines mechanical and physical properties for metric fasteners.This standard is the origin for other standards that define properties for similar metric fasteners, such as SAE J1199 and ASTM F568M. [1]
Hanger bolt - Bolt that has no head, machine threaded body followed by a wood threaded screw tip. Allow nuts to be attached to what is really a screw. Hex bolt - Bolt with a hexagonal head and threaded shank. Section immediately under head may be unthreaded for fastening thicker materials. J bolt - Bolt shaped like the letter J, used for tie downs.
ISO 261: ISO general purpose metric screw threads — General plan. ISO 262: ISO general purpose metric screw threads — Selected sizes for screws, bolts and nuts. ISO 965: ISO general purpose metric screw threads — Tolerances [4] ISO 965-1: Principles and basic data; ISO 965-2: Limits of sizes for general purpose external and internal screw ...
The number series of machine screws has been extended downward to include #00-90 (0.047 in = 0.060 in − 0.013 in) and #000-120 (0.034 in = 0.060 in − 2 × 0.013 in) screws; [3] however, the main standard for screws smaller than #0 is ANSI/ASME standard B1.10 Unified Miniature Screw Threads. This defines a series of metric screws named after ...
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