Castle Nut M10 x 1.25 Metric Fine Black High Type Gr.8 DIN 935

Castle Nut
Hexagon High Type
Metric Fine
Black / Self Color
High Tensile Grade 8
Dia: M10
Pitch: 1.25
DIN: 935
Wrench Size Across Flats: 17mm
A DIN 935 castle nut (or castellated nut) is a specialized hex nut featuring a notched, cylindrical top that resembles a medieval castle's battlements. It is designed to create a "positive locking" connection that is virtually impossible to loosen accidentally. An split pin is normally used with the nut.