39
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
Patte
rn
Pre
sse
r F
oot
Pattern No.
Application
Stitch Width
[mm (inch.)]
Stitch Length
[mm (inch.)]
Twin
Ne
edl
e
W
alk
ing Foo
t
R
eve
rs
e/
Rei
nforce
m
en
t
Stitc
hing
70
st
it
ch
es
mo
del
60
st
it
ch
es
mo
del
50
st
it
ch
es
mo
del
40
st
it
ch
es
mo
del
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
*
**
*
*
*
*
*
*
