How a lug is made
Barrel, palm, code.
01The barrel
The stripped conductor goes into the barrel, which is then crimped. Its bore is sized for a copper conductor of its cross-section; DIN 46235 lugs are listed for classes 1, 2, 5 and 6 of IEC 60228: solid, stranded, flexible and extra-flexible conductors.
02The palm
The palm goes over the stud or bolt. The hole is a little larger than the thread: 13 mm for M12. A lug for a smaller stud does not go over a larger one; a lug for a larger stud sits loose, with less contact area.
03The code
A DIN 46235 lug is stamped with the code of its hexagonal die to DIN 48083-4, from 5 for 6 mm2 to 32 for 300 mm2, and with rings showing where and how many times to crimp. A die with another code crimps the barrel to the wrong size.
DIN 46235 lugs: conductor cross-section, code of the lug and the die, studs in the standard, barrel bore and outer diameter, mm
| Cross-section, mm2 | Code | Studs in DIN 46235 | Barrel bore | Barrel outer |
| 6 | 5 | M5, M6 | — | 5.5 |
| 10 | 6 | M5, M6 | — | 6 |
| 16 | 8 | M6, M8, M10 | 5.5 | 8.5 |
| 25 | 10 | M6, M8, M10, M12 | 7 | 10 |
| 35 | 12 | M8, M10, M12 | 8.2 | 12.5 |
| 50 | 14 | M8, M10, M12, M16 | — | 14.5 |
| 70 | 16 | M8, M10, M12, M16 | — | 16.5 |
| 95 | 18 | M10, M12, M16 | 13.5 | 19 |
| 120 | 20 | M10, M12, M16, M20 | 15.5 | 21 |
| 150 | 22 | M10, M12, M16, M20 | 17 | 23.5 |
| 185 | 25 | M10, M12, M16, M20 | 19 | 25.5 |
| 240 | 28 | M16, M20 | 21.5 | 29 |
| 300 | 32 | M16, M20 | 24.5 | 32 |
Code: the number stamped on the lug, and the code of the hexagonal die to DIN 48083-4 that crimps it. Stud holes: M5 5.3, M6 6.4, M8 8.4, M10 10.5, M12 13, M16 17, M20 21 mm. A value is given only where two independent tables agree; values two tables do not agree on are left out: the barrel bore of 6, 10, 50 and 70 mm2 (the tables differ by 0.1 to 0.2 mm), the overall length and the palm width (they differ by maker and by stud), and cross-sections from 400 mm2. Combinations outside the standard, such as 16-12 or 35-6, are marked as such in both tables that mark them; on 95-8 the tables differ.
Sources
Every value appears in at least two independent published tables of DIN 46235 lugs from makers and distributors, and is left out where tables differ. The studs the standard gives each cross-section come, for 6 to 120 mm2, from two tables that mark the combinations outside it, and for 150 to 300 mm2 from one such table and two maker tables. The die codes are checked against the lug tables and against a die table of a tool maker.