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Spanner Size comparison Chart
Dimensions shown are in mm, if you wish to convert to Inches, please use our universal converter.
| SPANNER JAW SIZES comparison CHART AND CORRESPONDING NUT/BOLT | ||||||
|---|---|---|---|---|---|---|
| DIFFERENCE | JAW SIZE | JAW SIZE | SPANNER | SPANNER | SPANNER | COMMON NUT/BOLT |
| (mm) | (mm) | (Inches) | METRIC | AF | BRITISH | |
| 2.97 | 0.117 | 10BA | ||||
| 0.23 | 3.20 | 0.126 | 3.2mm | M1.6 | ||
| 0.13 | 3.33 | 0.131 | 9BA | |||
| 0.53 | 3.86 | 0.152 | 8BA | |||
| 0.11 | 3.97 | 0.156 | 5/32 AF | #0 UNC | ||
| 0.03 | 4.00 | 0.157 | 4mm | M2 | ||
| 0.37 | 4.37 | 0.172 | 7BA | |||
| 0.39 | 4.76 | 0.188 | 3/16 AF | #2 UNC | ||
| 0.14 | 4.90 | 0.193 | 6BA | |||
| 0.1 | 5.00 | 0.197 | 5mm | M2.5 | ||
| 0.5 | 5.50 | 0.217 | 5.5mm | M3 | ||
| 0.06 | 5.56 | 0.219 | 7/32 AF | |||
| 0.03 | 5.59 | 0.220 | 5BA | |||
| 0.37 | 5.95 | 0.234 | 15/64 AF | |||
| 0.05 | 6.00 | 0.236 | 6mm | M3.5 | ||
| 0.3 | 6.30 | 0.248 | 4BA | |||
| 0.05 | 6.35 | 0.250 | 1/4 AF | #4 UNC | ||
| 0.65 | 7.00 | 0.276 | 7mm | M4 | ||
| 0.14 | 7.14 | 0.281 | 9/32 AF | |||
| 0.02 | 7.16 | 0.282 | 3BA | |||
| 0.77 | 7.94 | 0.313 | 5/16 AF | #6 UNC & #10 UNC (bolt) | ||
| 0.06 | 8.00 | 0.315 | 8mm | M5 | ||
| 0.23 | 8.23 | 0.324 | 2BA | |||
| 0.36 | 8.59 | 0.338 | 1/8 W; 3/16 BSF | |||
| 0.15 | 8.73 | 0.344 | 11/32 AF | #8 UNC | ||
| 0.27 | 9.00 | 0.354 | 9mm | |||
| 0.27 | 9.27 | 0.365 | 1BA | |||
| 0.25 | 9.53 | 0.375 | 3/8 AF | #10 UNC (nut) | ||
| 0.48 | 10.00 | 0.394 | 10mm | M6 | ||
| 0.49 | 10.49 | 0.413 | 0BA | |||
| 0.51 | 11.00 | 0.433 | 11mm | M7 | ||
| 0.11 | 11.11 | 0.438 | 7/16 AF | 1/4 UNF | ||
| 0.19 | 11.30 | 0.445 | 3/16 W; 1/4 BSF | |||
| 0.7 | 12.00 | 0.472 | 12mm | |||
| 0.7 | 12.70 | 0.500 | 1/2 AF | 5/16 UNF | ||
| 0.3 | 13.00 | 0.512 | 13mm | M8 | ||
| 0.33 | 13.34 | 0.525 | 1/4 W; 5/16 BSF | |||
| 0.67 | 14.00 | 0.551 | 14mm | |||
| 0.29 | 14.29 | 0.563 | 9/16 AF | 3/8 UNF | ||
| 0.71 | 15.00 | 0.591 | 15mm | |||
| 0.24 | 15.24 | 0.600 | 5/16 W; 3/8 BSF | |||
| 0.64 | 15.88 | 0.625 | 5/8 AF | 7/16 UNF (bolt) | ||
| 0.13 | 16.00 | 0.630 | 16mm | |||
| 1 | 17.00 | 0.669 | 17mm | M10 | ||
| 0.46 | 17.46 | 0.688 | 11/16 AF | 7/16 UNF (nut) | ||
| 0.54 | 18.00 | 0.709 | 18mm | |||
| 0.03 | 18.03 | 0.710 | 3/8 W; 7/16 BSF | |||
| 0.97 | 19.00 | 0.748 | 19mm | M12 | ||
| 0.05 | 19.05 | 0.750 | 3/4 AF | 1/2 UNF | ||
| 0.95 | 20.00 | 0.787 | 20mm | |||
| 0.64 | 20.64 | 0.813 | 13/16 AF | 9/16 UNF (bolt) | ||
| 0.19 | 20.83 | 0.820 | 7/16 W; 1/2 BSF | |||
| 0.17 | 21.00 | 0.827 | 21mm | |||
| 1 | 22.00 | 0.866 | 22mm | M14 | ||
| 0.22 | 22.23 | 0.875 | 7/8 AF | 9/16 UNF (nut) | ||
| 0.78 | 23.00 | 0.906 | 23mm | |||
| 0.37 | 23.37 | 0.920 | 1/2 W; 9/16 BSF | |||
| 0.44 | 23.81 | 0.938 | 15/16 AF | 5/8 UNF | ||
| 0.19 | 24.00 | 0.945 | 24mm | M16 | ||
| 1 | 25.00 | 0.984 | 25mm | |||
| 0.4 | 25.40 | 1.000 | 1 AF | |||
| 0.25 | 25.65 | 1.010 | 9/16 W; 5/8 BSF | |||
| 0.35 | 26.00 | 1.024 | 26mm | |||
| 0.99 | 26.99 | 1.063 | 1-1/16 AF | |||
| 0.01 | 27.00 | 1.063 | 27mm | M18 | ||
| 0.94 | 27.94 | 1.100 | 5/8 W; 11/16 BSF | |||
| 0.06 | 28.00 | 1.102 | 28mm | |||
| 0.57 | 28.58 | 1.125 | 1-1/8 AF | 3/4 UNF | ||
| 1.43 | 30.00 | 1.181 | 30mm | M20 | ||
| 0.48 | 30.48 | 1.200 | 11/16 W; 3/4 BSF | |||
| 1.27 | 31.75 | 1.250 | 1-1/4 AF | |||
| 0.25 | 32.00 | 1.260 | 32mm | M22 | ||
| 1.02 | 33.02 | 1.300 | 3/4 W; 7/8 BSF | |||
| 0.32 | 33.34 | 1.313 | 1-5/16 AF | 7/8 UNF | ||
| 0.66 | 34.00 | 1.339 | 34mm | |||
| 1.31 | 35.31 | 1.390 | 13/16 W | |||
| 0.69 | 36.00 | 1.417 | 36mm | M24 | ||
| 0.51 | 36.51 | 1.438 | 1-7/16 AF | |||
| 1.08 | 37.59 | 1.480 | 7/8 W; 1 BSF | |||
| 0.41 | 38.00 | 1.496 | 38mm | |||
| 0.1 | 38.10 | 1.500 | 1-1/2 AF | 1 UNF | ||
| 2.03 | 40.13 | 1.580 | 15/16 W | |||
| 0.87 | 41.00 | 1.614 | 41mm | M27 | ||
| 0.27 | 41.28 | 1.625 | 1-5/8 AF | |||
| 1.14 | 42.42 | 1.670 | 1 W; 1-1/8 BSF | |||
| 0.44 | 42.86 | 1.688 | 1-11/16 AF | 1-1/8 UNF | ||
| 3.14 | 46.00 | 1.811 | 46mm | M30 | ||
| 0.04 | 46.04 | 1.813 | 1-13/16 AF | |||
| 1.21 | 47.24 | 1.860 | 1-1/8 W; 1-1/4 BSF | |||
| 0.38 | 47.63 | 1.875 | 1-7/8 AF | 1-1/4 UNF | ||
| 2.38 | 50.00 | 1.969 | 50mm | M33 | ||
| 0.8 | 50.80 | 2.000 | 2 AF | |||
| 1.27 | 52.07 | 2.050 | 1-1/4 W; 1-3/8 BSF | |||
| 0.32 | 52.39 | 2.063 | 2-1/16 AF | 1-3/8 UNF | ||
| 2.61 | 55.00 | 2.165 | 55mm | M36 | ||
| 0.56 | 55.56 | 2.188 | 2-3/16 AF | |||
| 0.83 | 56.39 | 2.220 | 1-3/8 W; 1-1/2 BSF | |||
| 0.76 | 57.15 | 2.250 | 2-1/4 AF | 1-1/2 UNF | ||
| 2.85 | 60.00 | 2.362 | 60mm | M39 | ||
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