EFCO 406X Series - Manual (Page 11)

Series 406X Storefront Installation Instructions
EFCO 2014 Page 11
Section 3B. Shear Block Fabrication (cont.)
Shear Block Horizontals
 21U7 Shown, also for open
back and tubular intermediate
horizontals.
 Use Drill Fixture #DJ52
placed at each end of
horizontal as shown.
 Use a .230” dia. No. 1 drill bit
for each hole.
DJ52
21U7 F734
DJ52
21U4Shear Block
Horizontals
 Use Drill Fixture
#DJ47 placed at
each end of
horizontal as
shown.
 Drill one side as in
Fig. 8a then flip
drill fixture to
opposite side as in
Fig. 8b.
 Use a .230” dia.
No. 1 drill bit for
each hole.
(a) (b)
DJ47
DJ47
21U4
F757
F722
F722
F757
Vertical Dead Load Shear Pins
 Use Drill Fixture #DJ48 placed on vertical as shown below.
 Left Hands Shown, Right Hands Opposite
 Use a .189” dia. No. 12 drill bit at darkened hole only. DJ48 DJ48
Fig. #8
Fig. #7
Fig. #9