Tolerence Chart

Size Range in inch	Tolerence
1/16" to less than 5/16"	+/-0.001"
5/16" to less than 1/2"	+/-0.0015"
1/2" to less than 1"	+/-0.002"
1" to less than 1-1/2"	+/-0.0025"
1-1/2" to less than 4"	+/-0.003

Cold finished Hexagon and Square Bars

Size Range in inch	Tolerence
1/16" to less than 5/16"	+/-0.002"
5/16" to less than 1/2"	+/-0.003"
1/2" to less than 1"	+/-0.004"
1" to less than 2"	+/-0.006"
2" to less than 3"	+/-0.008"
3" and over	+/-0.010"

Tolerence chart for SS Round Bars as per ISO

Size Range (mm)	h8	h9	h10	h11	h12	h13	k12/k13
Upto 6	-0.018	-0.030	-0.048	-0.075	-0.120	-0.180	−
Over 6 upto 10	-0.022	-0.036	-0.058	-0.090	-0.150	-0.220	−
Over 10 upto 18	-0.027	-0.043	-0.070	-0.110	-0.180	-0.270	−
Over 18 upto 30	-0.033	-0.052	-0.084	-0.130	-0.210	-0.330	+0.10/+0.15
Over 30 upto 50	-0.039	-0.062	-0.100	-0.160	-0.250	-0.390	+0.15/+0.20
Over 50 upto 80	-0.046	-0.074	-0.120	-0.190	-0.300	-0.460	+0.20/+0.25
Over 80 upto 120	-0.054	-0.087	-0.140	-0.220	-0.350	-0.540	+0.25/+0.30