This Japanese Industrial Standard specifies the basic profile, formulas and basic dimensions for unified fine screw threads used for aircrafts and other purposes of limited necessity.

1.1 This specification covers the chemical, mechanical, and dimensional requirements for metric hardened steel washers for use with fasteners having nominal thread diameters M12 through M100. These washers are intended for general purpose mechanical and structural use with bolts, nuts, st […]

This International Standard specifies the characteristics of countersunk head grooved pins which have three equally spaced grooves impressed longitudinally on their exterior surface, with metric dimensions and nominal diameter, d1, from 1,4 to 20 mm inclusive. The displaced material to e […]

This standard specifies dimensions and technical delivery conditions for screw plugs which are intended to be screwed into holes with parallel thread as specified in DIN 13 Part 5, 6 or 7, or ISO 228-1. Such plugs may be used together with seal rings as specified in DIN 7603, type and mat […]

This quality focused Standard establishes in-process and final inspection requirements for fastener products as well as a receiving inspection plan for fastener purchasers. This Standard identifies four categories, recognizing that fastener users have widely varying requirements. The four […]

Decorator's tacks shall be made of steel (grade at manufacturer's discretion) and have a bright (bk) or blue annealed (bl g) finish.