Captive Panel Retainers Installation Guide
Review the below information to properly install various captive panel retainers, including knurled shank retainers, panel screw retainers, and press fit retainers of either style.
Knurled Shank Retainers – Press Fit Only
American Standard Sizes: All Dimensions are in Inches
| SHANK DIA. “B” | .198 | .228 | .280 | .366 | .414 | .479 |
| “X” DIA. | .188 | .218 | .270 | .356 | .404 | .469 |
Panel Screw Retainers – Non Press Fit Styles Only
American Standard Sizes: All Dimensions are in Inches:
| SHANK DIA. “B” | .188 | .218 | .250 | .270 | .356 | .404 | .406 | .433 |
| “X” DIA. | .191 | .221 | .257 | .272 | .359 | .407 | .407 | .437 |
| “Y” DIA. | .252 | .282 | .318 | .333 | .420 | .468 | .468 | .498 |
Rule of thumb for “Y” countersink: Y = X + .045 min. or 0.78 max
Knurled Shank Retainers – Press Fit Only
Metric Sizes: All Dimensions are in Millimeters
| SHANK DIA. “B” | 5 | 5.8 | 7.1 | 9.3 |
| “X” DIA. | 4.75 | 5.54 | 6.86 | 9.04 |
Panel Screw Retainers – Non Press Fit Styles Only
Metric Sizes: All Dimensions are in Millimeters
| SHANK DIA. “B” | 6.3 | 11 |
| “X” DIA. | 6.5 | 11.2 |
| “Y” DIA. | 8 | 12.6 |
Rule of thumb for “Y” countersink: Y = X + 1.14 min. or 1.98 max