Specifications

The part number for each Stitcher Head can be used to define the stitcher head itself,
in most cases. The Head’s model type, mounting style, nominal wire size and crown size
can all be determined from the part number.
G20 S HD 24 1/2 L or SCP
L = Loop Stitch or Solid Clincher Plate option
1/2 = Crown size in inches
24 = Wire Size
HD = Head
S = Release type or Original Equipment Manufacturer
G20 = Model type
Part Number Definition
5
Model Differences
Generally speaking, the following part numbers indicate which Stitcher Heads can be used as
replacement heads for your Stitcher Machine or collating system*. Refer to Figure 1 for more
information.
• Style BHD (back release) - Models G20BHD19211/2, G20BHD20241/2 and G20BHD241/2L.
These Heads are for use on Bolt-Mount / Crank-Driven Stitchers. They come with a Long Wire
Guide Spring Assembly (G20286A), a Clincher Plate Assembly (7650A), two Rear Mounting Bolts
(G20341), two Rear Clamp Pins (G20376) and two Bonnet Stud Nuts (HN1213).
• Style DHD - Models G20DHD20241/2. These Heads come with a Long Wire Guide Spring
Assembly (G20286A), a Clincher Plate Assembly (7650A), a Bonnet Clamp Block (G20501) and a
Bonnet Clamp Eccentric (G20524).
• Style SHD (side release) - Models G20SHD201/2, G20SHD205/8, G20SHD205/8-SCP,
G20SHD241/2, G20SHD241/2-SCP, G20SHD241/2L, G20SHD245/8, G20SHD245/8-SCP,
G20SHD20241/2 and G20SHD20245/8. These Heads come with a Short Wire Guide Spring
Assembly (G20679A), a Clincher Plate Assembly (7650A) on the standard heads and a s Sided
Solid Clincher Plate (7650SCP) on those heads with a the Solid Clincher Plate option, a Bonnet
Clamp Block (G20501) and a Bonnet Clamp Eccentric (G20524).
* These are just examples and should be used as reference only.