This product guide contains the specification for metric threaded half or lock nuts, a range of standard parts available from Westfield Fasteners. The basis of this specification is the DIN standard DIN 439.
Thread, d1 | Thread | M1.6 | M1.8 | M2 | M2.5 | M3 | M3.5 | M4 | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M18 | M20 | M22 | M24 | M27 | M30 | M33 | M36 | M39 | M42 | M45 | M48 | M52 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Fine Pitch 1 | - | - | - | - | - | - | - | - | - | M8x1 | M10x1.25 | M12x1.5 | M14x1.5 | M16x1.5 | M18x2 | M20x2 | M22x2 | M24x2 | M27x2 | M30x2 | M33x3 | M36x3 | M39x3 | M42x3 | M45x3 | M48x3 | M52x3 | |
Fine Pitch 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | M36x2 | M39x2 | M42x2 | M45x2 | M48x2 | M52x2 | |
Fine Pitch 3 | - | - | - | - | - | - | - | - | - | - | M10x1 | M12x1.25 | - | - | M18x1.5 | M20x1.5 | M22x1.5 | M24x1.5 | M27x1.5 | M30x1.5 | M33x1.5 | M36x1.5 | M39x1.5 | M42x1.5 | M45x1.5 | M48x1.5 | M52x1.5 | |
d2 | min | 2.88 | 3.15 | 3.6 | 4.5 | 4.95 | 5.4 | 6.1 | 7.2 | 9 | 11.7 | 15.3 | 17.1 | 19.8 | 21.6 | 24.3 | 27 | 28.8 | 32.4 | 36.9 | 41.4 | 45 | 49.5 | 54 | 62 | 66 | 71 | 76 |
e | Type A min | 3.28 | 3.62 | 4.18 | 5.31 | 5.87 | 6.44 | 7.50 | 8.63 | 10.89 | 14.20 | 18.72 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Type B min | 3.48 | 3.82 | 4.38 | 5.51 | 6.08 | 6.64 | 7.74 | 8.87 | 11.05 | 14.38 | 18.90 | 21.10 | 24.49 | 26.75 | 30.14 | 33.53 | 35.72 | 39.98 | 45.63 | 51.28 | 55.80 | 61.31 | 66.96 | 72.61 | 78.26 | 83.91 | 89.56 | |
m | 1 | 1.1 | 1.2 | 1.6 | 1.8 | 2 | 2.2 | 2.7 | 3.2 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13.5 | 15 | 16.5 | 18 | 19.5 | 21 | 22.5 | 24 | 26 | |
s | 3.2 | 3.5 | 4 | 5 | 5.5 | 6 | 7 | 8 | 10 | 13 | 17 | 19 | 22 | 24 | 27 | 30 | 32 | 36 | 41 | 46 | 50 | 55 | 60 | 65 | 70 | 75 | 80 |