SOLUTIONS FOR CRITICAL MANUFACTURING
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Self-Clinching Collar Base Panel Fasteners
Description
Self-clinching collar base panel fasteners provide a durable, low-profile solution for securing access panels and covers in sheet metal assemblies. Installed by pressing into a prepared hole, the base is permanently retained in the sheet while the head provides convenient, repeatable panel engagement.
Key Features
- Self-clinching installation for permanent retention in thin sheet metal
- Convenient captive panel fastening for frequent access
- Knurled or smooth head options to suit grip and appearance requirements
- Aluminium knob with steel base for strength and corrosion resistance
Technical Dimensions
| Thread Size | Thread Type | Material | Sheet (Min.) | Hole Diameter | A1 (Nom.) | A2 (Nom.) | C (Max.) | D | G | P | T (Max.) | CL to Edge (Min.) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| #10-32 | Unified, Knurled Head | Aluminium knob, steel base | 0.036 | 0.312 (+0.003 / -0.000) | 0.45 | 0.64 | 0.311 | 0.514 (±0.010) | 0.230 (±0.025) | 0.000 (±0.025) | 0.036 | 0.33 |
| #10-32 | Unified, Knurled Head | Aluminium knob, steel base | 0.036 | 0.312 (+0.003 / -0.000) | 0.45 | 0.64 | 0.311 | 0.514 (±0.010) | 0.290 (±0.025) | 0.060 (±0.025) | 0.036 | 0.33 |
| #10-32 | Unified, Knurled Head | Aluminium knob, steel base | 0.036 | 0.312 (+0.003 / -0.000) | 0.45 | 0.64 | 0.311 | 0.514 (±0.010) | 0.350 (±0.025) | 0.120 (±0.025) | 0.036 | 0.33 |
| #10-32 | Unified, Smooth Head | Aluminium knob, steel base | 0.036 | 0.312 (+0.003 / -0.000) | 0.45 | 0.64 | 0.311 | 0.514 (±0.010) | 0.230 (±0.025) | 0.000 (±0.025) | 0.036 | 0.33 |
| #10-32 | Unified, Smooth Head | Aluminium knob, steel base | 0.036 | 0.312 (+0.003 / -0.000) | 0.45 | 0.64 | 0.311 | 0.514 (±0.010) | 0.290 (±0.025) | 0.060 (±0.025) | 0.036 | 0.33 |
| #10-32 | Unified, Smooth Head | Aluminium knob, steel base | 0.036 | 0.312 (+0.003 / -0.000) | 0.45 | 0.64 | 0.311 | 0.514 (±0.010) | 0.350 (±0.025) | 0.120 (±0.025) | 0.036 | 0.33 |
| #4-40 | Unified, Knurled Head | Aluminium knob, steel base | 0.036 | 0.219 (+0.003 / -0.000) | 0.31 | 0.45 | 0.218 | 0.417 (±0.010) | 0.170 (±0.025) | 0.000 (±0.025) | 0.036 | 0.28 |
| #4-40 | Unified, Knurled Head | Aluminium knob, steel base | 0.036 | 0.219 (+0.003 / -0.000) | 0.31 | 0.45 | 0.218 | 0.417 (±0.010) | 0.230 (±0.025) | 0.060 (±0.025) | 0.036 | 0.28 |
| #4-40 | Unified, Knurled Head | Aluminium knob, steel base | 0.036 | 0.219 (+0.003 / -0.000) | 0.31 | 0.45 | 0.218 | 0.417 (±0.010) | 0.290 (±0.025) | 0.120 (±0.025) | 0.036 | 0.28 |
| #4-40 | Unified, Smooth Head | Aluminium knob, steel base | 0.036 | 0.219 (+0.003 / -0.000) | 0.31 | 0.45 | 0.218 | 0.417 (±0.010) | 0.170 (±0.025) | 0.000 (±0.025) | 0.036 | 0.28 |
| #4-40 | Unified, Smooth Head | Aluminium knob, steel base | 0.036 | 0.219 (+0.003 / -0.000) | 0.31 | 0.45 | 0.218 | 0.417 (±0.010) | 0.230 (±0.025) | 0.060 (±0.025) | 0.036 | 0.28 |
| #4-40 | Unified, Smooth Head | Aluminium knob, steel base | 0.036 | 0.219 (+0.003 / -0.000) | 0.31 | 0.45 | 0.218 | 0.417 (±0.010) | 0.290 (±0.025) | 0.120 (±0.025) | 0.036 | 0.28 |
| #6-32 | Unified, Knurled Head | Aluminium knob, steel base | 0.036 | 0.25 (+0.003 / -0.000) | 0.45 | 0.64 | 0.249 | 0.450 (±0.010) | 0.230 (±0.025) | 0.000 (±0.025) | 0.036 | 0.29 |
| #6-32 | Unified, Knurled Head | Aluminium knob, steel base | 0.036 | 0.25 (+0.003 / -0.000) | 0.45 | 0.64 | 0.249 | 0.450 (±0.010) | 0.290 (±0.025) | 0.060 (±0.025) | 0.036 | 0.29 |
| #6-32 | Unified, Knurled Head | Aluminium knob, steel base | 0.036 | 0.25 (+0.003 / -0.000) | 0.45 | 0.64 | 0.249 | 0.450 (±0.010) | 0.350 (±0.025) | 0.120 (±0.025) | 0.036 | 0.29 |
| #6-32 | Unified, Smooth Head | Aluminium knob, steel base | 0.036 | 0.25 (+0.003 / -0.000) | 0.45 | 0.64 | 0.249 | 0.450 (±0.010) | 0.230 (±0.025) | 0.000 (±0.025) | 0.036 | 0.29 |
| #6-32 | Unified, Smooth Head | Aluminium knob, steel base | 0.036 | 0.25 (+0.003 / -0.000) | 0.45 | 0.64 | 0.249 | 0.450 (±0.010) | 0.290 (±0.025) | 0.060 (±0.025) | 0.036 | 0.29 |
| #6-32 | Unified, Smooth Head | Aluminium knob, steel base | 0.036 | 0.25 (+0.003 / -0.000) | 0.45 | 0.64 | 0.249 | 0.450 (±0.010) | 0.350 (±0.025) | 0.120 (±0.025) | 0.036 | 0.29 |
| #8-32 | Unified, Knurled Head | Aluminium knob, steel base | 0.036 | 0.312 (+0.003 / -0.000) | 0.45 | 0.64 | 0.311 | 0.514 (±0.010) | 0.230 (±0.025) | 0.000 (±0.025) | 0.036 | 0.33 |
| #8-32 | Unified, Knurled Head | Aluminium knob, steel base | 0.036 | 0.312 (+0.003 / -0.000) | 0.45 | 0.64 | 0.311 | 0.514 (±0.010) | 0.290 (±0.025) | 0.060 (±0.025) | 0.036 | 0.33 |
| #8-32 | Unified, Knurled Head | Aluminium knob, steel base | 0.036 | 0.312 (+0.003 / -0.000) | 0.45 | 0.64 | 0.311 | 0.514 (±0.010) | 0.350 (±0.025) | 0.120 (±0.025) | 0.036 | 0.33 |
| #8-32 | Unified, Smooth Head | Aluminium knob, steel base | 0.036 | 0.312 (+0.003 / -0.000) | 0.45 | 0.64 | 0.311 | 0.514 (±0.010) | 0.230 (±0.025) | 0.000 (±0.025) | 0.036 | 0.33 |
| #8-32 | Unified, Smooth Head | Aluminium knob, steel base | 0.036 | 0.312 (+0.003 / -0.000) | 0.45 | 0.64 | 0.311 | 0.514 (±0.010) | 0.290 (±0.025) | 0.060 (±0.025) | 0.036 | 0.33 |
| #8-32 | Unified, Smooth Head | Aluminium knob, steel base | 0.036 | 0.312 (+0.003 / -0.000) | 0.45 | 0.64 | 0.311 | 0.514 (±0.010) | 0.350 (±0.025) | 0.120 (±0.025) | 0.036 | 0.33 |
| 1/4-20 | Unified, Knurled Head | Aluminium knob, steel base | 0.036 | 0.375 (+0.003 / -0.000) | 0.53 | 0.79 | 0.374 | 0.575 (±0.010) | 0.290 (±0.025) | 0.000 (±0.025) | 0.036 | 0.46 |
| 1/4-20 | Unified, Knurled Head | Aluminium knob, steel base | 0.036 | 0.375 (+0.003 / -0.000) | 0.53 | 0.79 | 0.374 | 0.575 (±0.010) | 0.350 (±0.025) | 0.060 (±0.025) | 0.036 | 0.46 |
| 1/4-20 | Unified, Knurled Head | Aluminium knob, steel base | 0.036 | 0.375 (+0.003 / -0.000) | 0.53 | 0.79 | 0.374 | 0.575 (±0.010) | 0.410 (±0.025) | 0.120 (±0.025) | 0.036 | 0.46 |
| 1/4-20 | Unified, Smooth Head | Aluminium knob, steel base | 0.036 | 0.375 (+0.003 / -0.000) | 0.53 | 0.79 | 0.374 | 0.575 (±0.010) | 0.290 (±0.025) | 0.000 (±0.025) | 0.036 | 0.46 |
| 1/4-20 | Unified, Smooth Head | Aluminium knob, steel base | 0.036 | 0.375 (+0.003 / -0.000) | 0.53 | 0.79 | 0.374 | 0.575 (±0.010) | 0.350 (±0.025) | 0.060 (±0.025) | 0.036 | 0.46 |
| 1/4-20 | Unified, Smooth Head | Aluminium knob, steel base | 0.036 | 0.375 (+0.003 / -0.000) | 0.53 | 0.79 | 0.374 | 0.575 (±0.010) | 0.410 (±0.025) | 0.120 (±0.025) | 0.036 | 0.46 |
| M3 x 0.5 | Metric, Knurled Head | Aluminium knob, steel base | 0.92 | 5.56 (+0.08 / -0.00) | 7.87 | 11.43 | 5.54 | 10.59 (±0.25) | 4.32 (±0.64) | 0.00 (±0.64) | 0.92 | 7.11 |
| M3 x 0.5 | Metric, Knurled Head | Aluminium knob, steel base | 0.92 | 5.56 (+0.08 / -0.00) | 7.87 | 11.43 | 5.54 | 10.59 (±0.25) | 5.84 (±0.64) | 1.52 (±0.64) | 0.92 | 7.11 |
| M3 x 0.5 | Metric, Knurled Head | Aluminium knob, steel base | 0.92 | 5.56 (+0.08 / -0.00) | 7.87 | 11.43 | 5.54 | 10.59 (±0.25) | 7.37 (±0.64) | 3.05 (±0.64) | 0.92 | 7.11 |
| M3 x 0.5 | Smooth Head, Metric | Aluminium knob, steel base | 0.92 | 5.56 (+0.08 / -0.00) | 7.87 | 11.43 | 5.54 | 10.59 (±0.25) | 4.32 (±0.64) | 0.00 (±0.64) | 0.92 | 7.11 |
| M3 x 0.5 | Smooth Head, Metric | Aluminium knob, steel base | 0.92 | 5.56 (+0.08 / -0.00) | 7.87 | 11.43 | 5.54 | 10.59 (±0.25) | 5.84 (±0.64) | 1.52 (±0.64) | 0.92 | 7.11 |
| M3 x 0.5 | Smooth Head, Metric | Aluminium knob, steel base | 0.92 | 5.56 (+0.08 / -0.00) | 7.87 | 11.43 | 5.54 | 10.59 (±0.25) | 7.37 (±0.64) | 3.05 (±0.64) | 0.92 | 7.11 |
| M3.5 x 0.5 | Knurled Head, Metric | Aluminium knob, steel base | 0.92 | 6.35 (+0.08 / -0.00) | 11.43 | 16.26 | 6.33 | 11.43 (±0.25) | 5.84 (±0.64) | 0.00 (±0.64) | 0.92 | 7.37 |
| M3.5 x 0.5 | Knurled Head, Metric | Aluminium knob, steel base | 0.92 | 6.35 (+0.08 / -0.00) | 11.43 | 16.26 | 6.33 | 11.43 (±0.26) | 7.37 (±0.64) | 1.52 (±0.64) | 0.92 | 7.37 |
| M3.5 x 0.5 | Knurled Head, Metric | Aluminium knob, steel base | 0.92 | 6.35 (+0.08 / -0.00) | 11.43 | 16.26 | 6.33 | 11.43 (±0.27) | 8.89 (±0.64) | 3.05 (±0.64) | 0.92 | 7.37 |
| M3.5 x 0.5 | Smooth Head, Metric | Aluminium knob, steel base | 0.92 | 6.35 (+0.08 / -0.00) | 11.43 | 16.26 | 6.33 | 11.43 (±0.28) | 5.84 (±0.64) | 0.00 (±0.64) | 0.92 | 7.37 |
| M3.5 x 0.5 | Smooth Head, Metric | Aluminium knob, steel base | 0.92 | 6.35 (+0.08 / -0.00) | 11.43 | 16.26 | 6.33 | 11.43 (±0.29) | 7.37 (±0.64) | 1.52 (±0.64) | 0.92 | 7.37 |
| M3.5 x 0.5 | Smooth Head, Metric | Aluminium knob, steel base | 0.92 | 6.35 (+0.08 / -0.00) | 11.43 | 16.26 | 6.33 | 11.43 (±0.30) | 8.89 (±0.64) | 3.05 (±0.64) | 0.92 | 7.37 |
| M4 x 0.7 | Knurled Head, Metric | Aluminium knob, steel base | 0.92 | 7.92 (+0.08 / -0.00) | 11.43 | 16.26 | 7.9 | 13.06 (±0.25) | 0.00 (±0.64) | 0.00 (±0.64) | 0.92 | 8.38 |
| M4 x 0.7 | Knurled Head, Metric | Aluminium knob, steel base | 0.92 | 7.92 (+0.08 / -0.00) | 11.43 | 16.26 | 7.9 | 13.06 (±0.25) | 7.37 (±0.64) | 1.52 (±0.64) | 0.92 | 8.38 |
| M4 x 0.7 | Knurled Head, Metric | Aluminium knob, steel base | 0.92 | 7.92 (+0.08 / -0.00) | 11.43 | 16.26 | 7.9 | 13.06 (±0.25) | 8.89 (±0.64) | 3.05 (±0.64) | 0.92 | 8.38 |
| M4 x 0.7 | Smooth Head, Metric | Aluminium knob, steel base | 0.92 | 7.92 (+0.08 / -0.00) | 11.43 | 16.26 | 7.9 | 13.06 (±0.25) | 5.84 (±0.64) | 0.00 (±0.64) | 0.92 | 8.38 |
| M4 x 0.7 | Smooth Head, Metric | Aluminium knob, steel base | 0.92 | 7.92 (+0.08 / -0.00) | 11.43 | 16.26 | 7.9 | 13.06 (±0.25) | 7.37 (±0.64) | 1.52 (±0.64) | 0.92 | 8.38 |
| M4 x 0.7 | Smooth Head, Metric | Aluminium knob, steel base | 0.92 | 7.92 (+0.08 / -0.00) | 11.43 | 16.26 | 7.9 | 13.06 (±0.25) | 8.89 (±0.64) | 3.05 (±0.64) | 0.92 | 8.38 |
| M5 x 0.8 | Knurled Head, Metric | Aluminium knob, steel base | 0.92 | 7.92 (+0.08 / -0.00) | 11.43 | 16.26 | 7.9 | 13.06 (±0.25) | 5.84 (±0.64) | 0.00 (±0.64) | 0.92 | 8.38 |
| M5 x 0.8 | Knurled Head, Metric | Aluminium knob, steel base | 0.92 | 7.92 (+0.08 / -0.00) | 11.43 | 16.26 | 7.9 | 13.06 (±0.25) | 7.37 (±0.64) | 1.52 (±0.64) | 0.92 | 8.38 |
| M5 x 0.8 | Knurled Head, Metric | Aluminium knob, steel base | 0.92 | 7.92 (+0.08 / -0.00) | 11.43 | 16.26 | 7.9 | 13.06 (±0.25) | 8.89 (±0.64) | 3.05 (±0.64) | 0.92 | 8.38 |
| M5 x 0.8 | Smooth Head, Metric | Aluminium knob, steel base | 0.92 | 7.92 (+0.08 / -0.00) | 11.43 | 16.26 | 7.9 | 13.06 (±0.25) | 5.84 (±0.64) | 0.00 (±0.64) | 0.92 | 8.38 |
| M5 x 0.8 | Smooth Head, Metric | Aluminium knob, steel base | 0.92 | 7.92 (+0.08 / -0.00) | 11.43 | 16.26 | 7.9 | 13.06 (±0.25) | 7.37 (±0.64) | 1.52 (±0.64) | 0.92 | 8.38 |
| M5 x 0.8 | Smooth Head, Metric | Aluminium knob, steel base | 0.92 | 7.92 (+0.08 / -0.00) | 11.43 | 16.26 | 7.9 | 13.06 (±0.25) | 8.89 (±0.64) | 3.05 (±0.64) | 0.92 | 8.38 |
| M6 x 1.0 | Knurled Head, Metric | Aluminium knob, steel base | 0.92 | 9.53 (+0.08 / -0.00) | 13.46 | 20.07 | 9.5 | 14.61 (±0.25) | 10.41 (±0.64) | 3.05 (±0.64) | 0.92 | 11.68 |
| M6 x 1.0 | Knurled Head, Metric | Aluminium knob, steel base | 0.92 | 9.53 (+0.08 / -0.00) | 13.46 | 20.07 | 9.5 | 14.61 (±0.25) | 7.37 (±0.64) | 0.00 (±0.64) | 0.92 | 11.68 |
| M6 x 1.0 | Knurled Head, Metric | Aluminium knob, steel base | 0.92 | 9.53 (+0.08 / -0.00) | 13.46 | 20.07 | 9.5 | 14.61 (±0.25) | 8.89 (±0.64) | 1.52 (±0.64) | 0.92 | 11.68 |
| M6 x 1.0 | Smooth Head, Metric | Aluminium knob, steel base | 0.92 | 9.53 (+0.08 / -0.00) | 13.46 | 20.07 | 9.5 | 14.61 (±0.25) | 10.41 (±0.64) | 3.05 (±0.64) | 0.92 | 11.68 |
| M6 x 1.0 | Smooth Head, Metric | Aluminium knob, steel base | 0.92 | 9.53 (+0.08 / -0.00) | 13.46 | 20.07 | 9.5 | 14.61 (±0.25) | 7.37 (±0.64) | 0.00 (±0.64) | 0.92 | 11.68 |
| M6 x 1.0 | Smooth Head, Metric | Aluminium knob, steel base | 0.92 | 9.53 (+0.08 / -0.00) | 13.46 | 20.07 | 9.5 | 14.61 (±0.25) | 8.89 (±0.64) | 1.52 (±0.64) | 0.92 | 11.68 |
