This International Standard specifies ISO general purpose metric screw threads for screws, bolts and nuts in the diameter range 1 to 39 mm. These selected sizes are recommended also for general engineering use. These screw threads are selected from ISO 261, ISO general purpose metric sc […]

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 mater […]

This International Standard specifies the Characteristics of head configurations of slotted and recessed countersunk head screws, and recommends a gauging method for the head dimensions laid down in the respective product standards.

IFI-115 is a standard developed through the procedures of Industrial Fasteners Institute. IFI-115 was first published in 1970 and modestly revised and reissued in 1986 and 2002.

This standard specifies dimensions of steel countersunk head rivets with nominal diameters from 10 to 36 mm.

This standard specifies requirements for grub screws with a thrust point which, together with controlling elements, wing nuts or knurled nuts, are suitable for clamping with the thrust point directly or using a DIN 6311 thrust pad attached to the thrust point.