- 3/8″ – 16 X 2″ hardened cup point set screws installed with red heads (complies with DASMA 103)
- Color coded (red-left hand) (black – right hand)
- NOTE: See ATL Torsion Spring & Cable Drum Manual for proper cable attachment procedure
| Max Door Height | Rated Lift per Drum | Max Cable Diam | Mounting | Cross Reference |
|---|---|---|---|---|
| 28'1" | 1100 lbs | 1/4" | 1" or 1-1/4"solid shaft with 1/4" keyway | Apco 1350-28, Canimex D1350-336VL, DNS N/A, OMI 2906 |
| 11'1" | 425 lbs | 3/16" | 1" solid shaft with 1/4" keyway | Apco 850-11, Canimex D850-132VL, DNS 143-11, OMI 2900 |
| 18'1" | 660 lbs | 3/16" | 1" solid shaft with 1/4" keyway | Apco 1100-18, Canimex D1100-216VL, DNS 236-18, OMI 2902 |