| Finish Treatment |
|---|
| NICKEL | BLACK | CHROME | PLATING | BLACK ZINC |
| PLATING | SILVER | TINNING | BRASS | ANTIQUE COPPER |
| Machine Screw M/M 2A Q(60°) | |||
|---|---|---|---|
| Size | T | D | |
| Max | Min | ||
| 1.4 | 0.3 | 1.380 | 1.320 |
| 1.6 | 0.35 | 1.581 | 1.496 |
| 1.7 | 0.35 | 1.680 | 1.610 |
| 2.0 | 0.4 | 1.980 | 1.890 |
| 2.3 | 0.4 | 2.280 | 2.190 |
| 2.6 | 0.45 | 2.580 | 2.480 |
| 3.0 | 0.5 | 2.980 | 2.874 |
| 3.0 | 0.6 | 2.980 | 2.870 |
| 3.5 | 0.6 | 3.470 | 3.360 |
| 4.0 | 0.7 | 3.978 | 3.838 |
| 4.0 | 0.75 | 3.978 | 3.838 |
| 4.5 | 0.75 | 4.470 | 4.340 |
| 5.0 | 0.8 | 4.976 | 4.826 |
| 5.0 | 0.9 | 4.970 | 4.820 |
| 6.0 | 1.0 | 5.970 | 5.820 |
| 7.0 | 1.0 | 6.970 | 6.820 |
| 8.0 | 1.25 | 7.960 | 7.790 |
| 10.0 | 1.25 | 9.960 | 9.790 |
| 10.0 | 1.5 | 9.960 | 9.770 |
| 12.0 | 1.5 | 11.96 | 11.770 |
| 12.0 | 1.75 | 11.950 | 11.760 |
| 14.0 | 2.0 | 13.950 | 13.740 |
| 16.0 | 2.0 | 15.950 | 15.740 |
| Machine screw UNF 2A (60°) | |||
|---|---|---|---|
| Size | T | D | |
| Max | Min | ||
| NO.0 | 80 | 1.511 | 1.430 |
| NO.1 | 72 | 1.839 | 1.750 |
| NO.2 | 64 | 2.169 | 2.073 |
| NO.3 | 56 | 2.497 | 2.393 |
| NO.4 | 48 | 2.827 | 2.713 |
| NO.5 | 44 | 3.157 | 3.035 |
| NO.6 | 40 | 3.485 | 3.355 |
| NO.8 | 36 | 4.145 | 4.006 |
| NO.10 | 32 | 4.803 | 4.651 |
| NO.12 | 28 | 5.461 | 5.296 |
| 1/4" | 28 | 6.325 | 6.160 |
| 5/16" | 24 | 7.910 | 7.727 |
| 3/8" | 24 | 9.497 | 9.314 |
| 7/16" | 20 | 11.079 | 10.874 |
| 1/2" | 20 | 12.667 | 12.461 |
| 9/16" | 18 | 14.252 | 14.031 |
| 5/8" | 18 | 15.839 | 15.618 |
| 3/4" | 16 | 19.012 | 18.773 |
| 7/8" | 14 | 22.184 | 21.923 |
| 1" | 12 | 25.354 | 25.065 |
| Machine Screw UNC 2A Q(60°) | |||
|---|---|---|---|
| Size | T | D | |
| Max | Min | ||
| NO.1 | 72 | 1.839 | 1.742 |
| NO.2 | 64 | 2.169 | 2.065 |
| NO.3 | 56 | 2.497 | 2.383 |
| NO.4 | 48 | 2.824 | 2.695 |
| NO.5 | 44 | 3.155 | 3.025 |
| NO.6 | 40 | 3.485 | 3.332 |
| NO.8 | 36 | 4.143 | 3.990 |
| NO.10 | 32 | 4.801 | 4.618 |
| NO.12 | 28 | 5.461 | 5.278 |
| 1/4" | 28 | 6.322 | 6.116 |
| 5/16" | 24 | 7.907 | 7.686 |
| 3/8" | 24 | 9.492 | 9.253 |
| 7/16" | 20 | 11.077 | 10.815 |
| 1/2" | 20 | 12.662 | 12.385 |
| 9/16" | 18 | 14.247 | 13.957 |
| 5/8" | 18 | 15.834 | 15.527 |
| 3/4" | 16 | 19.004 | 18.677 |
| 7/8" | 14 | 22.177 | 21.824 |
| 1" | 12 | 25.349 | 24.968 |
| Tapping Screw ANSI Type A | |||
|---|---|---|---|
| Size | T | D | |
| Max | Min | ||
| NO.0 | 40 | 1.524 | 1.447 |
| NO.1 | 32 | 1.905 | 1.828 |
| NO.2 | 32 | 2.235 | 2.133 |
| NO.3 | 28 | 2.565 | 2.463 |
| NO.4 | 24 | 2.895 | 2.794 |
| NO.5 | 20 | 3.302 | 3.20 |
| NO.6 | 18 | 3.581 | 3.454 |
| NO.7 | 16 | 4.013 | 3.860 |
| NO.8 | 15 | 4.217 | 4.114 |
| NO.9 | 14 | 4.48 | 4.34 |
| NO.10 | 12 | 4.927 | 4.775 |
| NO.12 | 11 | 5.613 | 5.461 |
| NO.14 | 10 | 6.451 | 6.299 |
| Tapping Screw ANSI Type B | |||
|---|---|---|---|
| Size | T | D | |
| Max | Min | ||
| NO.0 | 48 | 1.524 | 1.447 |
| NO.1 | 42 | 1.905 | 1.828 |
| NO.2 | 32 | 2.235 | 2.133 |
| NO.3 | 28 | 2.565 | 2.463 |
| NO.4 | 24 | 2.895 | 2.794 |
| NO.5 | 20 | 3.302 | 3.20 |
| NO.6 | 20 | 3.581 | 3.454 |
| NO.7 | 19 | 3.911 | 3.784 |
| NO.8 | 18 | 4.267 | 4.114 |
| NO.10 | 16 | 4.927 | 4.775 |
| NO.12 | 14 | 5.613 | 5.461 |
| 1/4" | 14 | 6.248 | 6.096 |
| 5/16" | 12 | 8.001 | 7.823 |
| 3/8" | 12 | 9.652 | 9.423 |
| 7/16" | 10 | 11.176 | 10.947 |
| 1/2" | 10 | 12.801 | 12.573 |
| Tapping Screw ASA Type AB | |||
|---|---|---|---|
| Size | T | D | |
| Max | Min | ||
| NO.0 | 48 | 1.524 | 1.447 |
| NO.1 | 42 | 1.905 | 1.828 |
| NO.2 | 32 | 2.235 | 2.133 |
| NO.3 | 28 | 2.565 | 2.463 |
| NO.4 | 24 | 2.895 | 2.794 |
| NO.5 | 20 | 3.302 | 3.20 |
| NO.6 | 20 | 3.581 | 3.454 |
| NO.7 | 19 | 3.911 | 3.784 |
| NO.8 | 18 | 4.21 | 4.114 |
| NO.10 | 16 | 4.927 | 4.775 |
| NO.12 | 14 | 5.613 | 5.461 |
| 1/4" | 14 | 5.248 | 6.096 |
| Machine Screw W.T 2A Q(55°) | |||
|---|---|---|---|
| Size | T | D | |
| Max | Min | ||
| 1/16" | 60 | 1.560 | 1.447 |
| 3/32" | 48 | 2.361 | 1.828 |
| 1/8" | 40 | 3.155 | 2.133 |
| 5/32" | 32 | 3.945 | 2.463 |
| 3/16" | 24 | 4.742 | 2.794 |
| 1/4" | 20 | 6.33 | 3.20 |
| 5/16" | 18 | 7.91 | 3.454 |
| 3/8" | 16 | 9.50 | 3.784 |
| 7/16" | 14 | 11.082 | 4.114 |
| 1/2" | 12 | 12.67 | 4.775 |
| 9/16" | 12 | 14.258 | 5.461 |
| 5/8" | 11 | 15.845 | 6.096 |
| 3/4" | 10 | 19.020 | 7.823 |
| 7/8" | 9 | 22.195 | 9.423 |
| 1" | 8 | 25.37 | 10.947 |
| Tapping Screw W.T. Type A | |||
|---|---|---|---|
| Size | T | F | |
| Max | Min | ||
| 3/32" | 32 | 2.48 | 2.38 |
| 1/8" | 24 | 3.27 | 3.17 |
| 5/32" | 16 | 4.07 | 3.97 |
| 3/16" | 12 | 4.86 | 4.76 |
| 1/4" | 10 | 6.45 | 6.35 |
| 5/16" | 9 | 8.0 | 7.9 |
| 3/8" | 7 | 9.63 | 9.53 |
| 1/2" | 6 | 12.8 | 12.7 |
| Tapping Screw M/M Type A | |||
|---|---|---|---|
| Size | T | D | |
| Max | Min | ||
| M2 | 32 | 2.1 | 2.0 |
| M2.3 | 32 | 2.4 | 2.3 |
| M2.6 | 28 | 2.7 | 2.6 |
| M3 | 24 | 3.1 | 3.0 |
| M3.5 | 18 | 3.6 | 3.5 |
| M4 | 16 | 4.1 | 4.0 |
| M4.5 | 14 | 4.6 | 4.5 |
| M5 | 12 | 5.1 | 5.0 |
| M6 | 10 | 6.1 | 6.0 |
| M8 | 7 | 8.1 | 8.0 |
| M10 | 6 | 10.1 | 10.0 |
| Tapping Screw M/M Type B | |||
|---|---|---|---|
| Size | T | D | |
| Max | Min | ||
| M2 | 40 | 2.0 | 1.9 |
| M2.3 | 32 | 2.3 | 2.2 |
| M2.6 | 28 | 2.6 | 2.5 |
| M3 | 24 | 3.0 | 2.9 |
| M3.5 | 20 | 3.5 | 3.4 |
| M4 | 18 | 4.0 | 3.9 |
| M4.5 | 16 | 4.5 | 4.4 |
| M5 | 16 | 5.0 | 4.9 |
| M6 | 14 | 6.0 | 5.9 |
| M8 | 12 | 8.0 | 7.9 |