35
3
BUTTONHOLE SEWING
Buttonholes can be sewn and buttons can be sewn on.
*Auto Rfc.: Automatic Reinforcement
**Rfc.: Reinforcement
The maximum buttonhole length is about 28 mm (1-1/8 inch) (di thickness of the button).
Buttonholes are sewn from the front of the presser foot to the back, as shown below.
Stitch Name
Pat
ter
n
Pr
ess
er Foot
Pattern No.
Application
Stitch Width
[mm (inch.)]
Stitch Length
[mm (inch.)]
Tw
in
N
ee
dle
W
alki
ng Foot
Rever
se/
Re
in
fo
rc
em
en
t
St
it
ch
in
g
70 st
it
ches
m
odel
60 st
it
ches
m
odel
50 st
it
ches
m
odel
40 st
it
ches
m
odel
Auto
Manual
Auto
Manual
Buttonhole
stitch
A
29
29
29
25
Horizontal buttonholes
on thin and medium
weight fabrics
5.0
(3/16)
3.0-5.0
(1/8-3/16)
0.4
(1/64)
0.2-1.0
(1/64-1/16)
No
No
Auto
Rfc.
A
30
30
30
26
Secured buttoholes for
fabrics that have back-
ings
5.0
(3/16)
3.0–5.0
(1/8-3/16)
0.4
(1/64)
0.2–1.0
(1/64-1/16)
No
No
Auto
Rfc.
A
31
31
31
27
Buttonholes for stretch or
knit fabrics
6.0
(15/64)
3.0–6.0
(1/8-15/64)
1.0
(1/16)
0.5–2.0
(1/32-1/16)
No
No
Auto
Rfc.
A
32
32
32
28
Buttonholes for stretch
fabrics
6.0
(15/64)
3.0–6.0
(1/8-15/64)
1.5
(1/16)
1.0–3.0
(1/16-1/8)
No
No
Auto
Rfc.
A
33
33
33
29 Keyhole buttonholes for
thick or furry fabrics
7.0
(1/4)
3.0–7.0
(1/8-1/4)
0.5
(1/32)
0.3–1.0
(1/64-1/16)
No
No
Auto
Rfc.
A
34
34
–
–
Keyhole buttonholes for
medium weight and thick
fabrics
7.0
(1/4)
3.0–7.0
(1/8-1/4)
0.5
(1/32)
0.3–1.0
(1/64-1/16)
No
No
Auto
Rfc.
A
35
35
–
–
Keyhole buttonholes for
thick or furry fabrics
7.0
(1/4)
3.0–7.0
(1/8-1/4)
0.5
(1/32)
0.3–1.0
(1/64-1/16)
No
No
Auto
Rfc.
Zigzag stitch
(for quilting)
J
40
40
–
–
Appliqué quilting, free-
motion quilting, satin
stitching, button sewing
3.5
(1/8)
0.0–7.0
(0–1/4)
1.4
(1/16)
0.0-4.0
(0-3/16)
No
Yes
Rfc.
a
Reinforcement stitching
*
**
*
*
*
*
*
*
