Socket Head Screw Thread and Clearance Hole GD&T Tolerance Table Chart

Mechanical Tolerance Standards Charts

The following are recommended design installation mechanical tolerances table for cap head screws and the related clearance holes.

Related Resources:

• Hex Head Bolt Installation & Design Tolerances
• Dowel Pin Installation Tolerances
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• Choosing Geometric Tolerances GD&T for Design Tool

SIZE	HEAD HEIGHT	TAPPED HOLE POSITION TOL	CLEARANCE HOLE DIA. TOL. LIMITS	HOLE POSITIONAL TOLERANCE	HEAD DIAMETER	COUNTERBORE DIA. TOLERANCE LIMITS
.060-80 #0	.060	.005	.073 .068	.003	.096	.130 .123
.086-56/64 #2	.086	.008	.107 .100	.006	.140	.177 .170
.112-40/48 #4	.112	.009	.137 .127	.006	.183	.230 .211
.138-32/40 #6	.138	.014	.174 .164	.012	.226	.274 .264
.164-32/36 #8	.164	.016	.203 .192	.012	.270	.326 .314
.190-24/32 #10	.190	.022	.238 .226	.014	.312	.394 .372
.250-20/28	.250	.024	.300 .288	.014	.375	.457 .435
.3125-18/24	.3125	.024	.371 .351	.014	.468	.552 .528
.375-16/24	.375	.024	.435 .415	.016	.563	.654 .625
.4375-14/20	.4375	.024	.4975 .478	.016	.656	.742 .718
.500-13/20	.500	.024	.564 .544	.020	.750	.840 .816
.625-11/18	.625	.028	.693 .673	.020	.938	1.032 1.008
.750-10/16	.750	.028	.818 .798	.020	1.125	1.217 1.195
.875-9/14	.875	.028	.943 .923	.020	1.313	1.407 1.383
1.00-8/12	1.00	.028	1.068 1.048	.020	1.500	1.594 1.570

Related Resources:

• Gage Tolerance Calculator ASME B89.1.5 Pin and Ring Gauges
• ISO Tolerances For Fasteners
• Gauge Blocks Tolerances Specifications Table DIN 861
• General Tolerances Shaft - Holes Fits
• GD&T Geometric Dimensioning Tolerancing Basics Training
• GD&T Geometric Dimensioning Tolerancing Intermediate Training
• GDT ASME Y14.5-2009 Applications Training
• G&T Geometric Tolerancing ISO 1101 Training
• Online GD&T Fundamentals Training