公制規格 (mm)： | | 型號 | A | B | C | D | E | F | | TN-8 | M8*1.25P | 10 | 12 | 6 | 16 | 22 | | TN-10 | M10*1.5P | 12 | 14 | 7 | 18 | 22 | | TN-12A | M12*1.75P | 14 | 16 | 8 | 22 | 28 | | TN-12B | 16 | 16 | 8 | 25 | 28 | | TN-14 | M14*2.0P | 16 | 16 | 8 | 25 | 28 | | TN-16 | M16*2.0P | 18 | 20 | 11 | 28 | 32 | | TN-18 | M18*2.5P | 20 | 24 | 12 | 32 | 38 | | TN-20 | M20*2.5P | 22 | 28 | 14 | 32 | 38 |
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