New self-clinching standoffs available!
Introducing the self-clinching standoffs that can be
attached onto 0.8mm thick stainless steel enclosures!

With the newly introduced self-clinching standoffs,
it is now possible for standoffs to be installed onto
0.8mm thick custom sized MBS and TCS series
enclosures as well!

CASE BOX RACK & CUSTOM

TAKACHI ELECTRONICS ENCLOSURE CO., LTD.

Clinching Fastener

Self-clinching Standoff / Stud / Nut
Easy attaching of self-clinching fasteners into simple through-holes.

Need standoffs formounting PCB/Components inmetallic enclosures.
Using threaded standoffs.

Self-clinching standoffs reduces assembly processes.

A screw fastened with a nut and used as a stud.

6HOIFOLQFKLQJVWXGPDNHVIRUDÀDWDQGEHDXWLIXO¿QLVKUsing burred holes.

Self-clinching nuts provide tougher thread holes.

Need studs in/on
aluminium
enclosures.

Need tough threadhole(s) on 1.0mm
thick aluminium.

●A wide variety of self-clinching fasteners are available for selection.

ST・STS series

SB・SBS series

Self-clinching Standoffs(Through-hole type)Self-clinching Standoffs(Blind type)

NM・NS series

NR series

Self-clinching nuts
(Round type)Self-clinching nuts
(Hex type)CS series

BN series

Self-clinching studs

Self-clinching nuts
(Blind type)

Clinching-1

●See "Thread and length size chart" on page clinching-3 to clinching-6.
Kindly specify and put the relevant "Part #" in your drawings.
4-M3 Nut (NR-M3-2)

Example4-M3 Standoff (ST-M3-8)

ExampleEXAMPLE

ST・STS Through-hole type

SB・SBS Blind type

Clinching-2

Thread and length size chart

ST・STS series

Standoffs (Through-hole type)For length (L) up to 12mm, it will be fully threaded.
For length (L) 13mm or longer, threading is only up to 10mm.

DrawingDBL

Material : Steel / Trivalent zinc plated
Stainless steel / Passivated
Stainless steel models are BTO (built-to-order) .

Part #(Steel)Part #(Stainless steel)for use with panel
thickness t=1.0mm+

Part #(Stainless steel)for use with panel
thickness t=0.8mm

New sizes.

Threadcode

All dimensions are in mm

Threadpitch

D-0.08

B+/-0.2

L+/-0.1

ST-M2-8
0.4

4.18

5.210ST-M2-1212

ST-M2.5-6

6

ST-M2.5-8

1.0

4.2

6.0

1.04.2

6.0

0.8-1.0

6.2

7.0

1.0

7.2

8.0

1.0

7.2

8.0

8
M2.5

0.45

4.18

5.2

ST-M2.5-10

10ST-M2.5-12

123

STS-M3-3

ST-M3-4

STS-M3-4

4

ST-M3-5

STS-M3-5

5

ST-M3-6

STS-M3-6

ST-M3-7

STS-M3-7

ST-M3-8

STS-M3-8

ST-M3-9

STS-M3-9

ST-M3-10

STS-M3-10

ST-M3-11

STS-M3-11

ST-M3-12

STS-M3-12

STS-M3-6-0.8

67

STS-M3-8-0.8

8STS-M3-10-0.8

109

M30.5

6.18

7.2

STS-M3-12-0.8

1112

ST-M3-13

13

ST-M3-14

14

ST-M3-15

15

ST-M3-16

16

ST-M3-17

17ST-M3-18

18

ST-M3-20

20
STS-M4-6

6ST-M4-8

STS-M4-88

ST-M4-9

STS-M4-9

ST-M4-7

79
M4

ST-M4-10*Minimumdistance

8
M2

ST-M2-10

ST-M4-6

Hole size+0.08 / -0

6

ST-M2-6

ST-M3-3

Minimum
sheet
thickness

0.7

7.18

8.2

STS-M4-10

10

ST-M4-12

12

ST-M4-14

14

ST-M4-16

16

ST-M5-6

6

ST-M5-8

8
M5

0.8

7.18

8.2

ST-M5-10

10

ST-M5-1212*Minimum distance = Minimum distance from hole center to edge. Installation requirements vary.
Only available together with installation services. Not available separately.

Clinching-3

Thread and length size chart

SB・SBS series

Standoffs (Blind type)Drawing
DB

LS

Material : Steel / Trivalent zinc plated
Stainless steel / PassivatedAll dimensions are in mm
Part #(Steel)Part #(Stainless steel)Threadcode

Threadpitch

D-0.08B+/-0.2

L+/-0.1

MinimumS63

84

SB-M2-10

104

SB-M2-12125

SB-M2.5-6

63

8

4

SB-M2.5-10104

SB-M2.5-12125

SB-M2-6
SB-M2-8
M2

0.4

4.18

5.2

SB-M2.5-8
M2.5

0.45

4.18

5.2

SB-M3-6

SBS-M3-6

63

SB-M3-7

SBS-M3-773

SB-M3-8

SBS-M3-884

SB-M3-9

SBS-M3-9

94

SB-M3-10

SBS-M3-10

104

114

125

135

14

6.5

156.5

16

6.5

SB-M3-17

17

6.5

SB-M3-18

18

9.5

SB-M3-20

20

9.5

63

73

84

94

104

SB-M4-12125

SB-M4-14

146.5

SB-M4-16

166.5

SB-M5-884

104125

SB-M3-11
SB-M3-12

SBS-M3-12
M3

0.5

6.18

7.2

SB-M3-13
SB-M3-14

SBS-M3-14

SB-M3-15
SB-M3-16

SB-M4-6

SBS-M3-16

SBS-M4-6

SB-M4-7
SB-M4-8

SBS-M4-8

SB-M4-9
M4
SB-M4-10

SB-M5-10

0.7

7.18

8.2

SBS-M4-10

M5

0.8

7.18

8.2

SB-M5-12

Min.
sheet
thickness

Hole size+0.08 / -0

*Minimumdistance

1.0

4.2

6.0

1.0

4.2

6.0

1.0

6.2

7.0

1.0

7.2

8.0

1.0

7.2

8.0

*Minimum distance = Minimum distance from hole center to edge. Installation requirements vary.
Only available together with installation services. Not available separately.

Clinching-4

Thread and length size chart

NM・NS series

Nuts (Round through-hole type)Drawing

D

Material : Steel / Trivalent zinc plated
Stainless steel / PassivatedB

H

All dimensions are in mm
Part #(Steel)Part #(Stainless steel)NM-M2-1

Threadcode

Threadpitch

MaximumDB+/-0.2

H+/-0.1Min.
sheet
thickness

M2

0.4

4.22

6.3

1.5

1.0

Ｍ 2.5

0.45

4.22

6.3

1.5

NM-M2.5-1

NS-M3-1

4.8

4.25

4.8

4.25

4.85.4

6.9

6.4

7.1

1.0
0.5

4.22

6.3

1.5

NM-M3-2

1.4
NS-M4-1

1.0
M4

0.7

5.38

7.9

2.0

NM-M4-2
NM-M5-1

4.25

1.4

M3

NM-M4-1*Minimumdistance

1.0

NM-M2.5-2
NM-M3-1

Hole size+0.08 / -0

1.4
NS-M5-1

1.0
M5

0.8

6.38

8.7

2.0

NM-M5-2

1.4*Minimum distance = Minimum distance from hole center to edge. Installation requirements vary.
Only available together with installation services. Not available separately.

NR series

Nuts (Hex through-hole type)DrawingDHBMaterial : Steel / Trivalent zinc plated

All dimensions are in mm
ThreadcodeThreadpitch

MaximumDB-0.2

H+/-0.1Min.
sheet
thickness

NR-M2-1

M2

0.4

4.45

5.5

2.0

1.0

4.5

4.5

NR-M2.5-1

Ｍ 2.5

0.45

4.45

5.5

2.0

1.0

4.5

4.5

M3

0.5

4.45

5.5

2.0

4.5

4.5

5.5

5.5

6.5

6.5

Part #

NR-M3-1

Hole size+0.08 / -0

*Minimumdistance

1.0

NR-M3-2

1.4

NR-M4-1

1.0
M4

0.7

5.45

7.0

2.2

NR-M4-2

1.4

NR-M5-1

1.0
M5

0.86.45

8.0

NR-M5-2

3.0
1.4*Minimum distance = Minimum distance from hole center to edge. Installation requirements vary.
Only available together with installation services. Not available separately.

Clinching-5

Thread and length size chart

CS series

Studs (Flush-head type)DrawingDH

L

Material : Steel / Trivalent zinc plated

All dimensions are in mmThreadcodePart #Thread
pitchD+/-0.4

Maximum
HL+/-0.4

CS-M3-8Min.
sheetthickness

Hole size+0.08 / -0

*Minimumdistance

t1.0

3.0

5.6

t1.0

4.0

7.2

8

CS-M3-1010M30.5

4.6

2.1

CS-M3-12

12

CS-M3-15

15

CS-M4-88

CS-M4-10

10M4

0.7

5.9

2.4

CS-M4-12

12

CS-M4-1515*Minimum distance = Minimum distance from hole center to edge. Installation requirements vary.
Only available together with installation services. Not available separately.

BN series

A specialized pressmachine forclinching is utilized
to ensure that thestandoffs / studs /nuts are securelyattached.

Nuts (Blind type)Drawing
HL

DBAS

Material : Steel / Trivalent zinc plated

All dimensions are in mm
Part #ThreadcodeThread
pitchMaximum
DMaximumAB+/-0.25

Minimum
SH+/-0.25

BN-M3-1Min.
sheetthickness

Hole size+0.08 / -0

*Minimumdistance

4.25

4.8

5.4

6.9

1.0
M3

0.5

4.22

3.8

6.35

5.3

9.6

BN-M3-2

1.4

BN-M4-1

1.0
M4

0.7

5.38

5.2

7.95

BN-M4-2

6.8

11.2
1.4

*Minimum distance = Minimum distance from hole center to edge. Installation requirements vary.
Only available together with installation services. Not available separately.

Clinching-6

Clinching fastenerConcealed-head Self-clinching Standoffs (Non-through-hole type)Installed into recessed pockets so that one side of the panel remains unmarred.
Standoffs can be mounted onto 1.5mm or thicker material without requiring a through-hole
to be milled.
Concealed-head standoffs/studs ensure that the IP rating (if the enclosure is a waterproofseries) is maintained.

●Mounting Mark Visibility

Example : Clinching M4 standoff on
1.5mm thick material.

取付跡
板厚

Concealed-head standoffs/studs give an

M3M41.5㎜△×2.0㎜◎◯aesthetically better finish on the enclosure.
A recess cut is made on the internal side, and2.5㎜◎◎3.0㎜〜◎◎the standoffs are press-inserted in.

Mounting is possible on 1.5mm thick material.
Mounting mark would be almost invisible on 2.5mm orthicker material.
◎ Almost invisible◯ Barely visible△ Somewhat visible
× Very visible

All dimensions are in mmMK series

Concealed-head Clinching Standoffs
DrawingDBPart #L3

MK-M3-4

4

MK-M3-5

5

MK-M3-6

6

MK-M3-8

L

Material : Steel / Nickel plated

Min.
Hole sizeLsheet+0.08 / -0+/-0.1
thickness

MK-M3-3

MK-M3-7HB
Thread Thread Maximum
code pitch
D+/-0.1

H+0-0.1

Ｍ30.5

4.45

6.00.95

78

MK-M3-9

9MK-M3-10

10MK-M3-11

11MK-M3-1212

MK-M4-3

3MK-M4-4

4

MK-M4-5

5MK-M4-6
MK-M4-7*Minimumdistance

1.5

4.5

4.5

1.5

5.5

5.5

6
Ｍ4

0.7

5.45

8.0

0.95

7

MK-M4-88MK-M4-10

10

MK-M4-12

12MK-M4-1414*Minimum distance = Minimum distance from hole center to edge. Installation requirements vary.
Only available together with installation services. Not available separately.

Clinching-7

Aluminium stud welding

Welded Fasteners
Welded fasteners on aluminium objects.
Standoffs and studs with little surface weld marks can be achieved.
BackFront

Weld marks may be more visible on plates thinner than 2.0mm.
All dimensions are in mmStuds

Part #aThreadcode

Threadpitch

L+/-0.2

aAMS-M3-8

8

AMS-M3-10

10

M3AMS-M3-120.5

0.8 ± 0.1

*Minimumdistance

7.0

12

AMS-M3-15

15LAMS-M4-88

Material : Aluminium

AMS-M4-10

10M4

AMS-M4-12

0.70.8 ± 0.1

7.0

12AMS-M4-1515*Minimum distance = Minimum distance from hole center to edge. Installation requirements vary.
All dimensions are in mmbThreadpitchL+/-0.2

Available screw
lengthAFS-M3-5

52.0

AFS-M3-6

62.5

73.5

84.5

Part #StandoﬀsThreadcode

AFS-M3-7

M3

0.5

b6

AFS-M3-8

L
Material : Aluminium

AFS-M3-9

95.5

AFS-M4-8

8

3.5

10

5.5

127.5

AFS-M4-10

M4

AFS-M4-120.7

8*Minimumdistance

7.07.0*Minimum distance = Minimum distance from hole center to edge. Installation requirements vary.

Welding

ExampleStainless steel and steel weld fasteners are also available. Please inquire for more details.

Clinching-8

Only available together with installation services. Not available separately.

Insert Nuts and Heliserts (for plastic)

Inserts for plastic

Simple and easy way for stable fastening.
Simply insert the nuts into the bosses, and it will be refastenable.

LINE-UP
Press-in inserts

Threaded inserts

0DWHULDO%UDVV8Q¿QLVKHG
Part #Size

Material : Brass / Nickel platedHole size inbosses

Length(mm)Part #Size

Heliserts

0DWHULDO6WDLQOHVVVWHHO8Q¿QLVKHG

Hole size inbossesLength(mm)

Part #Size

M2×0.4P

Hole size inbosses

Length(mm)

SP-M3

M3×0.5P

8 〜 105.3

IRB-2603S M2.6×0.45P

5.5 〜 6

3.0

2TNM-M2

4〜5

2.0

SP-M4

M4×0.7P

9.5 〜 12

7.4

IRB-304S

M3×0.5P

5.5 〜 6

4.0

2TMN-M2.6 M2.6×0.45P

4.8 〜 6

2.6

SP-M5

M5×0.8P

12 〜 14

8.3

IRB-404S

M4×0.7P

6 〜 10

4.0

2TMN-M3

4.8 〜 63.0

M3×0.5P●Comparison chart
MethodPress-in inserts

Threaded inserts

Heliserts

Strength○◎◎

Cost◎▲▲

Boss size

▲

○◎

Point

◎：Excellent ○：Good ▲：Average

EXAMPLE
Press-in inserts

Threaded inserts

Clinching-9

Heliserts