CNA | Self-Clinching

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Dimensions

Thread Thread
Code
Screw
Length
Code
Sheet A
(Shank)
Max.
C
Max.
E
±.010
P1
Ref.
Minimum
Thickness
Hole
Size
+.003
-.000
Minimum
Distance
Hole Center
to Edge
4-40 440 .060 .060 .265 .25 .060 .264 .312 .060
.185 .185
6-32 632 .060 .060 .281 .28 .060 .280 .344 .060
.185 .185
.310 .310
8-32 832 .060 .060 .312 .31 .060 .311 .375 .060
.185 .185
.310 .310
10-32 1032 .060 .060 .344 .34 .060 .343 .406 .060
.185 .185
.310 .310
1/4-20 2520 .060 .060 .413 .38 .060 .412 .468 .060
.185 .185
.310 .310
General (Continued)
Thread Thread
Code
Screw
Length
Code
P2
±.016
P3
±.025
H1
Max.
H2
Ref.
Drive Size
Cross-
Recess
Six-Lobe Slot
4-40 440 .060 .250 .000 .370 .540 #1 T-10 .040W
.040D
.185 .375 .125
6-32 632 .060 .250 .000 .380 .540 #2 T-15 .051W
.047D
.185 .375 .125
.310 .500 .250
8-32 832 .060 .312 .000 .480 .705 #2 T-20 .055W
.055D
.185 .437 .125
.310 .562 .250
10-32 1032 .060 .312 .000 .490 .705 #2 T-25 .059W
.055D
.185 .437 .125
.310 .562 .250
1/4-20 2520 .060 .375 .000 .620 .905 #3 T-25 .071W
.059D
.185 .500 .125
.310 .625 .250

Material & Finish

Material
Code
Material Description Finish
Code
Finish Description For Use in
Sheet Hardness
Retainer Screw Spring Retainer Screw Spring HRB 70
Max.
HRB 60
Max.
SS 300-Series
Stainless Steel
400-Series
Heat Treated
Stainless Steel
300-Series
Stainless Steel
BLK-NIT Black
Nitride
Black
Nitride
Passivated
and/or
Tested per
ASTM
A 967
SS 300-Series
Stainless Steel
400-Series
Heat Treated
Stainless Steel
300-Series
Stainless Steel
P Passivated
and/or
Tested per
ASTM
A 967
Passivated
and/or
Tested per
ASTM
A 967
Passivated
and/or
Tested per
ASTM
A 967
STL Carbon Steel Heat Treated
Carbon Steel
300-Series
Stainless Steel
NI Bright Nickel
per ASTM B
689
Type II,
Class 5
Bright Nickel
per ASTM B
689
Type II,
Class 5
Passivated
and/or
Tested per
ASTM
A 967

Installation & Performance

  1. Prepare correct sized mounting hole in sheet. Do not deburr hole edges.
  2. Insert fastener in recessed anvil, locate sheet hole over captive screw shank with hole punch side of sheet toward the retainer and center punch over screw thread.
  3. Squeeze the fastener between concentric and parallel anvil and punch surfaces. Use only enough pressure to seat the retainer shoulder flush with the sheet. Anvil and punch should be made from hardened tool steel or may be ordered using the PENCOM part numbers shown in the tables below.
Anvil and Punch Dimensions
Thread
Code
Anvil Punch
A
±.002
C
±.002
Part
Number
D
±.002
Part
Number
440 .345 .358 TL1314 .190 TL1303
632 .345 .390 TL1315 .214 TL1304
832 .435 .421 TL1316 .243 TL1305
1032 .435 .452 TL1317 .267 TL1306
2520 .555 .514 TL1318 .329 TL1307
Performance
Thread
Code
Material
Code
Test Sheet Material
Aluminum Cold-rolled Steel
Installation
(lbs)
Retainer
Push-out
(lbs)
Installation
(lbs)
Retainer
Push-out
(lbs)
440 SS 2400 240 3000 300
STL 255
632 SS 2700 275 3500 350
STL 295
832 SS 2900 300 3800 400
STL 340
1032 SS 3000 400 4000 500
STL 420
2520 SS 3500 400 5000 600
STL 510

Performance data represents the average destructive result when all installation specifications are strictly followed. Variations in panel hole size, thickness, material, and installation methods will affect the loads. PENCOM strongly encourages testing in the application.

Drives

DriveDescription
TX6 - Lobe
PHCross Recess
SLSlotted