A4 Push-to-Close Latch
139
Push-to-open · Large
Housing Assembly
A
6.0 (.236)
Ø 4.5 (.18)
8.1 (.32)
28 (1.09)
2.4 (.094)
11(.433)
5.0 (.20)
7.6 (.30)
5.0 (.20)
• Heavy-duty construction
• Push-to-close,
push-to-open
1.2 (.047)
ACTUAL SIZE
Ø 4.5 (.18)
7.6 (.30)
Material and Finish
A
56 (2.21)
Steel, zinc plated
24 (.93)
Section A-A
14.7 (.58)
Ø 4.5 (.18)
28 (1.10)
Ø 4.6 (.18)
9.4 (.37)
11.7 (.461)
56 (2.20)
66 (2.60)
Keeper
Part Number
Latch
A4-30-201-12
Keeper
A4-36-201-12
Ø 4.6 (.18)
12.5 (.49)
8.5 (.34)
13.3 (.52)
Description
6.0 (.24)
Datum
face
27
18.8
(1.06)
(.74)
35.5
(1.40)
8.5 (.34)
3.0 (.12)
3.3 (.13)
34.3 (1.35)
Other options available. For complete details
on variety, part numbers, installation and
specification, go to
www.southco.com/A4
A4 Push-to-Close Latch
Push-to-open · Small
Optional Floating Receptacle
Pin Latch
24.5 (.97)
Spring
2.4 (.093)
Notes: Floating part of receptacle faces pin latch
Slide
2.6 (.102)
9.6 17.4
(.38) (.69)
25
(1.0)
Body
19.2 (.76)
Ø 3.3 (.130) Rivet holes
2 places
1.0 (.039)
Ø 3.4 (.142)
32 (1.26)
Float ±1.0 (±.04) max.
Material and Finish
Steel, zinc plated and thermoplastic,
black
14.3
(.563)
20.6 25.5
(.811) (1.00)
18.7 (.736)
Ø 2.5 (.098) Rivet holes
2 places
ACTUAL SIZE
40 (1.58)
• Accommodates misalignment
• Push-to-close,
push-to-open
Part Number
12.4 (.486)
Pin latch
A4-20-501-10
Optional floating receptacle
A4-26-502-10
Dimensions in millimeters (inch) unless otherwise stated
Other options available. For complete details
on variety, part numbers, installation and
specification, go to
www.southco.com/A4
Southco® A4 Push-to-Close Latch
Concealed, Pinlatch
Pinlatch
Floating Receptacle
.97˝
1.58˝
.102˝
SLIDE
.093˝
SPRING
ø.142˝
.039˝
BODY
A4-20-501-10
ø.130˝ RIVET HOLES
2 PLACES
.563˝
The Concealed Pinlatch is opened and closed
with a gentle push of its panel. If the panel
is to be located flush with the support in the
closed position, clearance must be provided
behind the latch so it can be pushed inward
enough to release the latch.
ø.098˝ RIVET HOLES
2 PLACES
Material and Finish
Panel Preparation and Installation
Body: Die cast zinc with natural finish
Spring & Locking Cam: Stainless steel
Slide: Black thermoplastic
Mechanical
Support Thickness Range: .047˝ to .118˝.
Latch Float: .008˝.
Latch Ejection When Released: .177˝.
Latch Swing Arc Radius (Hinge to Latch
Centers: 6.0˝ minimum.
.736˝
.811˝
Without Floating Receptacle
With Floating Receptacle
(latch engages with frame support)
1. Floating Receptacle installation requires
a .740˝ gap between panel back and top
of support. Pressing panel for operation
closes gap to .433˝.
ø.130˝
RIVET
HOLES
(OPT.)
ø.406˝
.563˝
.736˝
.811˝
ø.75˝
1.26˝
ø.098˝
RIVET
HOLES
(OPT.)
.486˝
Panel Hole
Support Hole
(No Receptacle)
SUPPORT
X
PANEL
CLOSED
.344˝
MAX.
MOVEMENT
TO RELEASE
LATCH
SUPPORT
X
PANEL
CLOSED
PANEL
CLOSED,
LATCH
LOCKED
.335˝
MIN.
Support Hole
(Floating Receptacle)
LOCKING
CAM
PANEL
ELECTED,
LATCH
OPEN
PANEL
PUSHED
TO
OPERATE
A4-26-502-10
1.00˝
.486˝
Floating Receptacle (optional)
Part Number
FLOAT ±.04˝ MAX.
Note: Floating part of receptacle faces Pinlatch.
.76˝
Part Number
Push-to-Close Latches
1.0˝
.69˝
.38˝
.679˝
PANEL
PUSHED
TO
OPERATE
LOCKING
CAM
PANEL
EJECTED,
LATCH
OPEN
.433˝
MIN.
.177˝
.344˝ MAX. MOVEMENT
TO RELEASE LATCH
PANEL
CLOSED,
LATCH
LOCKED
.740˝
.177˝
Material and Finish
Receptacle Housing & Plate: Stainless steel
All dimensions on this page are in inches.
Refer to our Southco 2003 Handbook or visit www.southco.com for expanded product listings.
63
Southco® A4 Push-to-Close Latch
Concealed, Heavy Duty, Pinlatch
Housing Assembly
A
.236˝
.047˝
ø.18˝
.32˝
Push-to-Close Latches
.094˝
1.09˝
.433˝
ø.18˝
.30˝
.20˝
.93˝
A
2.21˝
Section A-A
.58˝
.30˝
ø.18˝
.20˝
.37˝
.461˝
Description
Part Number
Latch
Keeper
A4-30-201-12
A4-36-201-12
The Heavy Duty Pinlatch is a sturdy all steel
latch, having a simple press-to-lock, pressagain-to-open operation, which may be
installed so that it is totally concealed. It may
be easily fitted, using either its side or rear
mounting flanges with two screws or rivets.
A pressed steel keeper is provided for the
mating part. Housing and keeper ordered
separately.
Material and Finish
2.20˝
2.60˝
Keeper
ø.18˝
1.10˝
.24˝
ø.18˝
.49˝
.34˝
.52˝
DATUM
FACE
1.06˝
.74˝
Material: Steel
Finish: Mechanical zinc with clear chromate
.34˝
.12˝
Mechanical
.13˝
Maximum Load without Distortion:
135 lbs.
Ultimate Load: 200 lbs.
Installation
1. The assembly may be installed by its side
or rear flanges using No. 8 screws, peel
type rivets or M4 bolts.
2. Approximately .25 inches of movement is
required to latch or unlatch the assembly.
3. The latch must be installed so that the
datum face of the keeper aligns with the
inner face of the ribbed housing wall.
4. In the unlikely event that the keeper
cannot enter the latch because the cam
has rotated out of phase, turn the cam to
the “ready” position as shown.
.756˝
.917˝
.335˝
CAM
.40˝ ±.118
.25˝ MIN. CLEARANCE REQUIRED
TO LATCH OR UNLATCH
All dimensions on this page are in inches.
64
Refer to our Southco 2003 Handbook or visit www.southco.com for expanded product listings.