Specification for metric keys and keyways. Parallel and taper keys.
STANDARD published on 22.2.1972
Designation standards: BS 4235-1:1972
Publication date standards: 22.2.1972
The number of pages: 26
Approximate weight : 78 g (0.17 lbs)
Country: British technical standard
Category: Technical standards BS
Parallel and taper keys and keyways for shafts of 6 mm to 500 mm diameter. For square and rectangular parallel keys three classes of fit, free, normal and close, are foreseen. Status: Confirmed