This Japanese Industrial Standard specifies the shape, dimensions and measuring method for cross recesses formed on the heads of machine screws, wood screws, tapping screws and the like, hereinafter referred to as the "cross recess".

1.1 This specification covers the requirements for commercial wrought nonferrous nuts in nominal thread diameters M6 to M36 inclusive in a number of alloys in common use and intended for general service applications. 1.2 Applicable bolts, cap screws, and studs for use with nuts covered by this sp...

This Japanese Industrial Standard specifies the methods of verifying whether the characteristic values related to the forms and dimensions given to threaded fasteners, hereinafter referred to as the "characteristic values", are within the tolerance zone based on JIS B 1021, hereinafter referred t...

This International Standard specifies the characteristics of cross recessed countersunk (flat) head tapping screws with thread sizes from ST 2,2 to ST 9,5 inclusive.

This Standard specifies the basic dimensions, in milimetres, of ISO metric screw threads in accordance with JIS B 0205-2. The values refer to the basic profile in accordance with JIS B 0205-1.

The surface of the spring washer and of the safety ring must be smooth and free from scale and burr. The spring washers must be coiled with constant pitch and without any kinks (with the exception of the barbing of the ends). The ends of the spring washer which bite into the parent material must...