Dimensions in mm – source Din 7981 | ||||||||||
Publication date: 08/1990 – Supersedes DIN 7981: 12/1984 | ||||||||||
Ø thread size | P | dk max | dk min | k max | k min | recess nr. | Type H m ref. | Type Z m ref. | y type C | y type F |
2.2 | 0.8 | 4.2 | 3.9 | 1.8 | 1.55 | 1 | 2.6 | 2.4 | 2 | 1.6 |
2.9 | 1.1 | 5.6 | 5.3 | 2.2 | 1.95 | 1 | 3 | 2.9 | 2.6 | 2.1 |
3.5 | 1.3 | 6.9 | 6.54 | 2.6 | 2.35 | 2 | 4.2 | 3.9 | 3.2 | 2.5 |
3.9 | 1.4 | 7.5 | 7.14 | 2.8 | 2.55 | 2 | 4.4 | 4.1 | 3.5 | 2.7 |
4.2 | 1.4 | 8.2 | 7.84 | 3.05 | 2.75 | 2 | 4.6 | 4.3 | 3.7 | 2.8 |
4.8 | 1.6 | 9.5 | 9.14 | 3.55 | 3.25 | 2 | 5 | 4.7 | 4.3 | 3.2 |
5.5 | 1.8 | 10.8 | 10.37 | 3.95 | 3.65 | 3 | 6.5 | 6.2 | 5 | 3.6 |
6.3 | 1.8 | 12.5 | 12.07 | 4.55 | 4.25 | 3 | 7.1 | 6.7 | 6 | 3.6 |
Din 7981 – ≈ weight in kg x1000 pcs, (ρ=7,85 kg/dm3) – commercial sizes | |||||||||||||||
d thread size | ST 2.2 | ST 2.9 | ST 3.5 | ST 3.9 | ST 4.2 | ST 4.8 | ST 5.5 | ST 6.3 | |||||||
nominal length l | |||||||||||||||
4.5 | 0.174 | ||||||||||||||
6.5 | 0.214 | 0.424 | |||||||||||||
9.5 | 0.274 | 0.532 | 0.84 | 1.07 | 1.26 | 1.85 | |||||||||
13 | 0.344 | 0.658 | 1.02 | 1.29 | 1.5 | 2.18 | 3.24 | 4.32 | |||||||
16 | 0.404 | 0.766 | 1.17 | 1.48 | 1.71 | 2.46 | 3.62 | 4.86 | |||||||
19 | 0.874 | 1.32 | 1.67 | 1.92 | 2.74 | 4 | 5.4 | ||||||||
22 | 1.47 | 1.86 | 2.13 | 3.02 | 4.38 | 5.94 | |||||||||
25 | 1.62 | 2.05 | 2.34 | 3.3 | 4.76 | 6.48 | |||||||||
32 | 2.84 | 3.96 | 5.67 | 7.74 | |||||||||||
38 | 4.52 | 6.45 | 8.82 | ||||||||||||
45 | |||||||||||||||
50 |