Shoulder screws and shoulder bushings are used to limit the stroke of moving tool parts, such as wipers, hold-down devices and ejectors. These parts are under a certain force, which is generated, for example, by springs. Shoulder screws and bushings also provide additional security in the event of failure or breakage of other holding elements.*www.vdi.de/3363
VDI 3363-1993 Referenced Document
DIN 7349:1974 Plain Washers for Bolts with Heavy Clamping Sleeves
DIN 9841:1980 Hexagon socket head shoulder screw for press tools
VDI 3363-1993 history
2017VDI 3363-2017 Shoulder screws, shoulder bushes in stamping and forming dies
1993VDI 3363-1993 Shoulder screws and shoulder bushes in large forming dies
1990VDI 3363-1990 Shoulder screws and shoulder bushes in large forming dies
1964VDI 3363-1964 Ansatzschrauben fuer Stanzwerkzeuge; Anwendung und Richtmasse