Captive Screws

CPA – Self–Clinching

Download Product Flier

3D CAD Models available. Contact a PENCOM Account Representative to request.

Part Description Example

  • CPASeries
  • 440Thread
    Code
  • .030Length
    Code
  • SLDrive
    Code
  • KNKnurled
    Cap*
  • EMaterial/
    Finish
    Code

*Omit KN for smooth cap

Request A Quote

*Contact a PENCOM Account Representative for the part number based on the description.

Drive Description
PH Cross Recess
SL Slotted
SL – PH Slotted – Cross Recess
TX 6 – Lobe
SL – TX Slotted – 6 – Lobe

Installation

  1. Punch or drill hole in sheet. Do not deburr edges.
  2. Insert captive screw in sheet hole and anvil as shown.
  3. Squeeze the captive screw and sheet between parallel punch and anvil surfaces. Use only enough pressure to seat the retainer shoulder flush with the sheet. Punch and anvil should be made from hardened steel.

General

ThreadThread
Code
Screw
Length
Code
SheetØCØEP1
Min.
Thickness
Hole
Size
Min. Dist.
Hole Center
to Edge
4-40440.030.036.222/.219.329.217.420.030
.100.100
.160.160
.200.220
6-32632.020.036.253/.250.375.250.450.020
.080.080
.150.150
.210.210
8-32832.020.036.315/.312.473.311.510.020
.080.080
.150.150
.210.210
10-321032.020.036.315/.312.473.311.510.020
.080.080
.150.150
.210.210
1/4-200420.020.036.378/.375.563.372.580.020
.080.080
.150.150
.210.210
(1) All dimensions are reference unless toleranced.

General (Continued)

P2P3H1H2K Max.Total Float
of Screw
in Ferrule
Cross
Recess
Size
Six-Lobe
Recess
Size
Anvil
ØM
Cross Recess
and/or Slot
Heads
Six-Lobe
Recess
Heads
.150.000.450.330.000.000.03#1T10.133/.121
.220.064
.280.124
.340.184
.210.000.630.440.000.000.03#2T15.154/.142
.270.044
.340.114
.400.174
.220.000.640.440.012.050.03#2T25.181/.169
.280.044
.350.114
.410.174
.220.000.640.440.000.040.03#2T25.213/.201
.280.044
.350.114
.410.174
.280.000.790.530.000.040.03#2T30.268/.256
.340.044
.410.114
.470.174

General

ThreadThread
Code
Screw
Length
Code
SheetØCØEP1
Min.
Thickness
Hole
Size
Min. Dist.
Hole Center
to Edge
M3 x 0.5M30.800.905.64/5.568.405.5010.600.80
2.502.50
4.004.00
5.605.60
M3.5 x 0.6M3.50.500.906.43/6.359.606.3011.500.50
2.102.10
3.703.70
5.305.30
M4 x 0.7M40.600.908.00/7.9212.007.9013.000.60
2.202.20
3.803.80
5.405.40
M5 x 0.8M50.600.908.00/7.9212.007.9013.000.60
2.202.20
3.803.80
5.405.40
M6 x 1.0M60.500.909.60/9.5014.259.5014.700.50
2.102.10
3.703.70
5.305.30
(1) All dimensions are reference unless toleranced.

General (Continued)

P2P3H1H2K Max.Total Float
of Screw
in Ferrule
Cross
Recess
Size
Six-Lobe
Recess
Size
Anvil
ØM
Cross Recess
and/or Slot
Heads
Six-Lobe
Recess
Heads
3.800.0011.308.300.000.000.7#1T103.40/3.10
5.501.60
7.003.10
8.604.70
5.300.0015.9011.100.000.00.08#2T153.90/3.60
6.901.20
8.502.80
10.104.40
5.500.0016.2011.300.301.30.08#2T254.60/4.30
7.101.30
8.702.90
10.304.50
5.500.0016.2011.300.301.30.06#2T255.40/5.10
7.101.30
8.702.90
10.304.50
7.100.0020.0013.400.301.300.8#2T306.40/6.10
8.701.20
10.302.80
11.904.40

Material & Finish

Material/Finish
Code
RetainerSpring & CPD WasherKnobScrew
MaterialFinishMaterialFinishMaterialFinishMaterialFinish
EHeat-Treated
Carbon Steel
Zinc1300-Series Stainless SteelPassivate36000-Series
Aluminum
NaturalHeat-Treated
Carbon Steel
Zinc1
FBlack
Powder Coat
Zinc and Black
Powder Coat2
GNatural400-Series Stainless SteelPassivate3
HBlack
Powder Coat
Passivate and Black Powder Coat4
(1) Zinc SC1 .0002" (5 μm) min. with Type III Clear Chromate per ASTM B 633.
(2) Zinc SC1 .0002" (5 μm) min. with Type III Clear Chromate per ASTM B 633 and black powder coat (screw head only).
(3) Passivate per ASTM A 967
(4) Passivate per ASTM A 967 and black powder coat (screw head only).