Figure 10. Drive Mounting Dimensions - Seagate ST3285N Product Manual

30 ST3655 Family SCSI Drives Product Manual, Rev. A
In the following figure, all dimensions are in inches (mm).
0.030 ± 0.010 (0.762 ± 0.254)
0.150 ± 0.010 (3.810 ± 0.254)
2.362 ± 0.010
(59.944 ± 0.254)
4.00 ± 0.02 (101.60 ± 0.51)
0.63 ± 0.02 (16.00 ± 0.51)
5.77 (146.56) max
2.375 ± 0.020
(60.325 ± 0.508)
Optional front panel
Four 6-32 UNC-2B threaded holes
Max screw insertion depth: 0.20 inches

Figure 10. Drive mounting dimensions

Six 6-32 UNC-2B threaded holes
Max screw insertion depth: 0.13 inch
(6.350 ± 0.254)
1.750 ± 0.010
(44.450 ± 0.254)
1.00 (25.40) max
0.250 ± 0.010