Hexagon Thin Nuts (Old Type)
Hexagon nuts according to this Standard are still specified for a period not as yet determined for replacement needs and for existing designs only.
For new designs, hexagon nuts according to DIN 439 are recommended which conform with the conclusions of Technical Committee ISO/TC 2 “Fasteners” of the International Organization for Standardization (ISO).
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Slotted head screws
Diameter of clearance holes and counter bores for bolts and screws
Hexagon nuts with metric coarse and fine pitch thread – Product classes A and B
Hexagon head screws with metric fine pitch thread – Product grades A and B – (ISO 8676: 1988) – English version of DIN EN 28 676
CARBON AND ALLOY STEEL METRIC NUTS
General rules for tightening of threaded fasteners
Slotted spring-type straight pins (ISO 8752: 1987) English version of DIN EN 28 752