SELF-CLINCHING NUTS - PennEngineering
PEM? brand self-clinching nuts install permanently in aluminum, steel or stainless steel sheets.
CLTM
SELF-CLINCHING NUTS
SELF-CLINCHING NUTS
Self-clinching nuts are installed by placing them in properly sized holes in sheets and applying a parallel squeezing force to the head of the nut. The sheet metal surrounding the head cold flows into an undercut thereby making the fastener an integral part of the sheet. A serrated clinching ring prevents the fastener from rotating after installation.
STM/SSTM/CLATM/CLSTM/CLSSTM nuts provide load-bearing threads in thin sheets with high pushout and torque-out resistance - PAGES 4 and 5
SPTM, PEM 300? nuts provide strong load-bearing threads in stainless steel sheets as thin as .030"/0.8 mm PAGES 4 and 5
PEM RT? free-running locknuts are free-running until clamp load is induced. A modified thread angle on the loaded flank provides the vibration resistant locking feature- PAGE 6
SLTM self-locking nuts are designed with a unique and economical TRI-DENT? locking feature, meeting 3 cycle locking performance requirements - PAGE 7
HTM (non-locking) and HNLTM (locking) nuts have threads that provide high pushout and torque-out resistance PAGE 8
SHTM hard panel nuts install into thin, harder, high strength steel materials PAGE 8
SMPSTM/SMPPTM nuts are for thinner sheet/close-to-edge applications PAGE 9
Material and finish specifications - PAGE 9
Installation - PAGES 10 and 13
Performance data - PAGES 14 - 17
Many PEM self-clinching nuts in this bulletin are dimensionally equivalent to nuts manufactured to NASM45938/1 specifications. Consult our Marketing department for a complete Military Specifications and National Aerospace Standards guide (Bulletin NASM) on our website.
Screws for use with PEM self-clinching locking fasteners should be Class 3A/4h fit or no smaller than Class 2A/6g.
PEM? Stamp (Registered Trademark)
PEM? Two Groove (Registered Trademark) PEM RT? Stamp (Registered Trademark)
SH (Registered Trademark)
Fasteners For Stainless Steel SP Identification Mark
SMPP Identification Mark
Fastener drawings and models are available at
CL-2 PennEngineering ?
? 2021 PennEngineering.
SELF-CLINCHING NUTS
PEM? SELF-CLINCHING NUT SELECTOR GUIDE
PEM Nut Type
S/SS/H
Recommended panel
material (1)
steel / aluminum
Thinnest sheet .025" /
0.64 mm
Application Requires:
Locking Threads
Free- Prevailing running torque
Closest centerline-toedge distance
Superior corrosion resistance
Recommended for installation into stainless steel sheets
Compatible with aluminum
anodizing
Harder high strength steel material
Non-magnetic
CLS/CLSS steel / aluminum
?
?
CLA
aluminum
?
?
?
SP
stainless steel
?
?
?
PEM RT? steel / aluminum
?
SL
steel / aluminum
?
HNL
aluminum
?
SH
hardened alloy steel
?
SMPS
steel / aluminum
?
?
?
?
SMPP
stainless steel
?
?
?
?
?
(1) Describes "best practice" for typical applications. Fasteners can be used in other panel materials not listed here if specified hardness limits are met. In all cases "For Use in Sheet Hardness" information is shown in chart on page 9.
THREAD MASKING
PEM? PreTectTM thread masking solution provides protection for PEM? internally threaded fasteners. They reduce labor and protect threads from paint and powder coating processes. Fasteners are shipped with plugs and film (where applicable) already in place. Click here for more information.
Thread mask is available for applications where hardware is installed prior to painting. During assembly, the threads of the mating hardware will remove paint, electro deposited automotive under coatings, and weld spatter upon application of torque. PEM? nuts can be specially ordered with thread mask applied. Click here for more information.
Thread mask color may vary.
"BC" suffix will be added to part number to designate thread mask to fastener.
AVAILABLE PEM? VARIMOUNT? FASTENING SYSTEM
The PEM? VariMount? fastening system (see PEM? Bulletin VM) utilizes a self-clinching nut paired with a round steel or stainless steel base plate to offer a clean and ready-made assembly for mounting into any rigid material or panel, including composites, plastics, and metals. Multiple radial holes in the base plate and a generous footprint provide effective mounting of the assembly. Mounting can be performed either on the front or through the back of a panel.
PennEngineering ? CL-3
SELF-CLINCHING NUTS
? S/SS nuts are recommended for use in steel or aluminum sheets HRB 80 / HB 150 or less.
? CLS/CLSS nuts are recommended for use in steel or aluminum sheets HRB 70 / HB 125 or less.
? SP nuts are recommended for use in stainless steel sheets HRB 90 / HB 192 or less.
? CLA nuts are recommended for use in steel or aluminum sheets HRB 50 / HB 82 or less.
PART NUMBER DESIGNATION
S
? 632 ? 1 ZI
SS
? 032 ? 1 ZI
CL S ? 632 ? 1
CLS S ? 032 ? 1
S P ? 632 ? 1
CL A ? 632 ? 1
Type Material Code
Thread Size Code
Shank Finish Code
STM/SSTM/CLSTM/CLSSTM/SPTM NUTS All dimensions are in inches.
UNIFIED
Thread Size
.086-56 (#2-56)
.099-48 (#3-48)
.112-40 (#4-40)
Carbon Steel
Type
Fastener Material
Stainless
Hardened
Steel
Stainless Steel
S
CLS
SP
Thread Code
256
S
CLS
--
348
S
CLS
SP
440
.138-32 (#6-32)
S
CLS
SP
632
.164-32 (#8-32)
S
CLS
SP
832
.190-24 (#10-24)
SS
CLSS
SP
024
.190-32 (#10-32)
SS
CLSS
SP
032
.216-24 (#12-24)
S
CLS
--
1224
.250-20 (1/4-20)
S (3)
CLS
SP
0420
.250-28 (1/4-28)
S
CLS
--
0428
.313-18 (5/16-18)
S (3)
CLS
SP
0518
.313-24 (5/16-24)
S
CLS
SP
0524
.375-16 (3/8-16)
S
CLS
SP
0616
.375-24 (3/8-24)
S
CLS
SP
0624
.438-20 (7/16-20)
S
--
--
0720
.500-13 (1/2-13)
S
CLS
--
0813
.500-20 (1/2-20)
S
CLS
--
0820
Shank Code
0 1 2 0 1 2 0 1 2 3 (2) 0 1 2 3 (2) 0 1 2 3 (2) 0 1 2 3 (2) 0 1 2 3 (2) 1 2 3 0 1 2 3 (2) 1 2 3 1 2 3 (2) 1 2 3 (2) 1 2 3 (2) 1 2 3 (2)
1
1 2 1 2
A (Shank)
Max.
.030 .038 .054 .030 .038 .054 .030 .038 .054 .087 .030 .038 .054 .087 .030 .038 .054 .087 .030 .038 .054 .087 .030 .038 .054 .087 .038 .054 .087 .045 .054 .087 .120 .054 .087 .120 .054 .087 .120 .054 .087 .120 .087 .120 .235 .087 .120 .235
.087
.120 .235 .120 .235
Rec. Min. Sheet Thickness (1)
.030 .040 .056 .030 .040 .056 .030 .040 .056 .090 .030 .040 .056 .090 .030 .040 .056 .090 .030 .040 .056 .090 .030 .040 .056 .090 .040 .056 .090 .047 .056 .090 .125 .056 .090 .125 .056 .090 .125 .056 .090 .125 .090 .125 .250 .090 .125 .250
.092
.125 .250 .125 .250
E
C
A
(Clinching profile may vary) Due to manufacturing procedure, parts may have a counterbore at shank end.
Hole Size In Sheet +.003 ?.000
C Max.
E ?.010
T ?.010
.166
.165
.250
.070
.166
.165
.250
.070
.166
.165
.250
.070
.1875
.187
.280
.070
.213
.212
.310
.090
.250
.249
.340
.090
.250
.249
.340
.090
.277
.276
.370
.130
.344
.343
.440
.170
.344
.343
.440
.170
.413
.412
.500
.230
.413
.412
.500
.230
.500
.499
.560
.270
.500
.499
.560
.270
.562
.561
.687
.311
.656
.655
.810
.360
T
Min. Dist. Hole CL To Edge
.19 .19 .19
.22
.27
.28
.28 .31 .34 .34 .38 .38 .44 .44 .562 .63
(1) For maximum performance, we recommend that you use the maximum shank length for your sheet thickness. (2) This shank code not available for SP nuts. (3) This thread size S nut, with a -2 shank code, can be installed successfully without the need to pre punch a mounting hole in a separate operation. See
page 15 for more information.
The increased hardness of stainless steel panels requires careful consideration when installing selfclinching fasteners. See page 16 or refer to Fastener Installation Dos and Don'ts on our website.
CL-4 PennEngineering ?
SELF-CLINCHING NUTS
STM/SSTM/CLSTM/CLSSTM/SPTM NUTS (See drawing at top of page 4) All dimensions are in millimeters.
METRIC
Type
Thread
Fastener Material
A
Rec.
Hole Size
Thread
Shank
(Shank)
Min. Sheet
In Sheet
C
E
Min. Dist.
T
Hole CL
Size
Carbon Stainless
Hardened
Code
Code
Max.
Thickness
+0.08
Max.
?0.25
?0.25
To Edge
Steel
Steel Stainless Steel
(1)
0 (2)
0.77
0.8
M2 x 0.4
S
CLS
SP
M2
1
0.97
1
4.22
4.2
6.35
1.5
4.8
2
1.38
1.4
0
0.77
0.8
M2.5 x 0.45
S
CLS
SP
M2.5
1
0.97
1
4.22
4.2
6.35
1.5
4.8
2
1.38
1.4
0
0.77
0.8
M3 x 0.5
S
CLS
SP
M3
1
0.97
1
4.22
4.2
6.35
1.5
4.8
2
1.38
1.4
0
0.77
0.8
M3.5 x 0.6
S
CLS
--
M3.5
1
0.97
1
4.75
4.73
7.11
1.5
5.6
2
1.38
1.4
0
0.77
0.8
M4 x 0.7
S
CLS
SP
M4
1
0.97
1
5.41
5.38
7.87
2
6.9
2
1.38
1.4
0
0.77
0.8
M5 x 0.8
SS
CLSS
SP
M5
1
0.97
1
6.35
6.33
8.64
2
7.1
2
1.38
1.4
00 (2)
0.89
0.92
M6 x 1
S (3)
CLS
SP
M6
0 (2)
1.15
1
1.38
1.2 1.4
8.75
8.73
11.18
4.08
8.6
2
2.21
2.29
M8 x 1.25
S (3)
CLS
SP
M8
1 2
1.38 2.21
1.4 2.29
10.5
10.47
12.7
5.47
9.7
M10 x 1.5
S
CLS
SP
M10
1
2.21
2.29
2 (2)
3.05
3.18
14
13.97
17.35
7.48
13.5
M12 x 1.75
S
--
--
M12
1
3.05
3.18
17
16.95
20.57
8.5
16
CLATM NUTS (See drawing at top of page 4) All dimensions are in inches.
UNIFIED
Type
Thread
Fastener Material Thread
Shank
A (Shank)
Min. Sheet Thickness
Hole Size In Sheet
C
E
Min. Dist.
T
Hole CL
Size
Aluminum
Code
Code
Max.
(1)
?.003 -.000
Max.
?.010
?.010
To Edge
.086-56 (#2-56)
CLA
256
1 2
.038
.040
.054
.056
.166
.165
.250
.070
.19
.112-40 (#4-40)
CLA
440
1 2
.038
.040
.054
.056
.1875
.187
.250
.090
.22
.138-32 (#6-32)
CLA
632
1 2
.038
.040
.054
.056
.213
.212
.280
.090
.27
.164-32 (#8-32)
CLA
832
1 2
.038
.040
.054
.056
.234
.233
.310
.130
.28
.190-24 (#10-24)
CLA
024
1 2
.038
.040
.054
.056
.296
.295
.370
.160
.31
.190-32 (#10-32)
CLA
032
1 2
.038
.040
.054
.056
.296
.295
.370
.160
.31
.250-20 (1/4-20)
CLA
1
0420
2
3
.054
.056
.087
.091
.120
.125
.344
.343
.440
.170
.34
(See drawing at top of page 4) All dimensions are in millimeters.
METRIC
Type
Thread Size x
Fastener Material Thread
Shank
A (Shank)
Min. Sheet Thickness
Hole Size In Sheet
C
Pitch
Aluminum
Code
Code
Max.
(1)
+0.08
Max.
1
0.98
1
M2 x 0.4
CLA
M2
2
1.38
1.4
4.22
4.2
M3 x 0.5
CLA
M3
1 2
0.98 1.38
1 1.4
4.75
4.73
M3.5 x 0.6
CLA
M3.5
1 2
0.98 1.38
1 1.4
5.41
5.38
M4 x 0.7
CLA
M4
1 2
0.98 1.38
1 1.4
5.94
5.92
M5 x 0.8
CLA
M5
1 2
0.98 1.38
1 1.4
7.52
7.49
M6 x 1
CLA
M6
1 2
1.38
1.4
2.21
2.3
8.75
8.73
Min. Dist.
E
T
Hole CL
?0.25
?0.25
To Edge
6.35
1.5
4.8
6.35
2
5.6
7.11
2
6.9
7.8
3
7.1
9.4
3.8
7.9
11.18
4.08
8.6
(1) For maximum performance, we recommend that you use the maximum shank length for your sheet thickness. (2) This shank code not available for SP nuts. (3) This thread size S nut, with a -2 shank code, can be installed successfully without the need to pre punch a mounting hole in a separate operation. See
page 15 for more information.
PennEngineering ? CL-5
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- dilution control conversion chart triple s
- body mass index table national institutes of health
- university of california
- digital signal processing university of alabama
- solution for homework 2 university of wisconsin madison
- conversion tables formulas and suggested guidelines for
- yeast comparison chart salt city brew supply
- fraction decimal conversion chart
- virtual memory yale university
- nema motor dimensions reference chart keller electrical
Related searches
- team meridian self service
- selling your self published book
- nycha self portal self service
- negative self talk vs positive self talk
- nuts that cause inflammation
- nuts that are anti inflammatory
- best nuts for inflammation
- are nuts inflammatory
- can nuts cause inflammation
- nuts with highest protein
- are nuts inflammatory foods
- nuts that reduce inflammation