Flange Bolt Chart and Stud Size in mm HardHat Engineer
Size in Inch Size in mm No of Bolts Bolt Size UNC RF Stud Length ISO Stud Size Class 400 Flange 1 2 15 4 1 2 75 M14 3 4 20 4 5 8 90 M16 1 25 4 5 8 90 M16 1 1 4 32 4 5 8 95 M16 1 1 2 40 4 3 4 110 M20 2 50 8 5 8 110 M16 2 1 2 65 8 3 4 120 M20 3 80 8 3 4 125 M20 3 1 2 90 8 7 8 140 M24 4 100 8 7 8 140 M24 5 125 8 7 8 145 M24