Hardware
J:
Place the angled edge of (512) Tunnel Rail tight to (160) Crowsnest Top with the bolt hole at the top and
loosely attach with 1 (G8) 5/16 x 2” Hex Bolt (with lock washer and flat washer, t-nut previously installed). (fig.
51.7 and 51.8)
K:
Loosely attach other end of (512) Tunnel Rail to (511) Tunnel Post with 1 (WB9) 5/16 x 2-1/8” Wafer Bolt
(with flat washer and t-nut). (fig. 51.7 and 51.8)
Step 51: Attach Tunnel Assembly to Fort
Part 4
Notice bolt
hole at top
511
Fig. 51.7
511
512
160
Wood Parts
1 x
Tunnel Rail FSC 5/4 x 4 x 23-11/16”
512
1 x
5/16 x 2” Hex Bolt (5/16” lock washer & 5/16” flat washer)
1 x
5/16 x 2-1/8” Wafer Bolt (5/16” flat washer & 5/16” t-nut)
G8
G8
WB9
WB9
G8
5/16” Flat
Washer
5/16” Lock
Washer
5/16”
T-Nut
5/16” Flat
Washer
Fig. 51.8
Top View
WB9
160
512
131