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| Model | A | B | C | D | E | F |
| STC13 | 11 | 64 (2-1/2") | 25 (1") | 13 (1/2") | 25 | 15 |
| STC23 | 11 | 100 (4") | 25 (1") | 16 (5/8") | 45 | 20 |
| STC33 | 11 | 152 (6") | 28 (1-1/8") | 19 (3/4") | 65 | 25 |
| STC14 | 14 | 64 (2-1/2") | 28 (1") | 13 (1/2") | 25 | 15 |
| STC24 | 14 | 100 (4") | 32 (1-1/4") | 19 (3/4") | 45 | 20 |
| STC34 | 14 | 152 (6") | 32 (1-1/4") | 22 (7/8") | 65 | 25 |
| STC15 | 18 | 64 (2-1/2") | 32 (1-1/4") | 16 (5/8") | 25 | 15 |
| STC25 | 18 | 100 (4") | 38 (1-1/2") | 19 (3/4") | 45 | 20 |
| STC35 | 18 | 152 (6") | 38 (1-1/2") | 22 (7/8") | 65 | 25 |
| STC16 | 20 | 100 (4") | 38 (1-1/2") | 19 (3/4") | 45 | 20 |
| STC26 | 20 | 152 (6") | 38 (1-1/2") | 25 (1") | 65 | 25 |
| STC36 | 20 | 200 (8") | 44 (1-3/4") | 28 (1-1/8") | 90 | 40 |
| STC18 | 26 | 152 (6") | 50 (2") | 32 (1-1/4") | 65 | 25 |
| STC28 | 26 | 200 (8") | 50 (2") | 35 (1-3/8") | 90 | 40 |
| STC38 | 26 | 254 (10") | 50 (2") | 38 (1-1/2") | 110 | 60 |
