Content with Tolerances on nominal length

27 April 2016
Dimensions from most preferred sizes Dimensions (d) M16 M20 M24 M30 M36 b 116-122 120-127.5 124-133 130-140.5 136-148 ds 15.3-16.7 19.16-20.84 23.16-24.84 29.16-30.84 35-37 k (nom) 10 12.5 15 17.7 22.5 k 9.25-10.75 11.6-13.4 14.1-15.9 17.65-19.75 21.45-23.55 s 23.16-24 29.16-30 35-36 45-46 53.8-55 f (nom) 8 10 12 15 18 f 7.25-8.75 9.25-10.75 11.1-12.9 14.1-15.9 17.1-18.9 v 15.3-16.7 19.16-20.84 23.16-24.84 29.16-30.84 35-37 Tolerances on nominal length Nominal length (mm) Tolerance (mm) 250 < / <= 315 +/- 5.
Read more about BS 7419 Holding down bolts - Basic dimensions