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Hardware
Step 46: Build Tunnel Assembly
Part 2
E:
Attach the tops of each Tunnel Side together using 2 (MB1) #12 x ½” Pan Bolts (with #12 Lock Nut) per side.
(fig. 46.4 and 46.5)
4 x
#12 x 1/2” Pan Bolt (with #12 lock nut)
MB1
Fig. 46.4
Fig. 46.5
#12 Lock
Nut
MB1