LAC-M4-1MD
Floating self-clinching, locking thread fasteners LA4, LAC, LAS
LAC-M4-1MD
Floating self-clinching, locking thread fasteners LA4, LAC, LAS
Locking and Non-locking Threads These fasteners provide load-bearing threads in thin sheets and permit up to 0.76mm adjustment for mating hole misalignment.
The self-clinching feature offers fast and simple assembly. The fasteners are squeezed into prepared holes using any standard press. The sheet remains flush on one side, and the fastener is permanently locked in place.
Extra strength and support in assembly is obtained by the threads of the floating nut extending fully into the retainer shank (a unique PEM feature). A self-locking version of the fastener is also offered. Thread locking torque performance is equivalent to applicable NASM25027 specifications.
Non-locking Type A4 and self-locking Type LA4 fasteners provide load-bearing threads in stainless steel sheets as thin as 0.97mm with hardness up to HRB 88 on the Rockwell “B” scale.
Many PEM Type AS and AC self-clinching floating fasteners correspond to sizes in US NASM45938/11 specifications. Check our web site for a complete Military Specification and National Aerospace Standards Reference Guide (Bulletin NASM).
Specifications
- Gewinde Code
- M4
- Thread Size
- M4 x 0,7
- Thread Size X Pitch
- M4 x 0,7
- Thread Specification
- 6H, ANSI/ASME B1,13M, Intern
- Shank Code
- 1
- Fastener Material
- 300er Edelstahl
- Fastener Materials – Nut
- 300 Series Stainless Steel
- Fastener Materials – Retainer
- 300 Series Stainless Steel
- Nut Finish
- Black Dry-film Lubricant
- Retainer Finish
- Passivated and/or tested per ASTM A380
- For Use in Sheet Hardness
- HRB 70 / HB 125 or Less
- Float
- 0.38mm minimum, in all directions from center, 0.76mm total
- Product Category
- Floating self-clinching, locking thread fasteners LA4, LAC, LAS
- CAD Supplier
- PennEngineering® (PEM®)
- CADPartID
- 103681
- Thread Type
- Self-Locking
- Application Type
- Industriell, Fertigung; Blechverarbeitung
- Base Panel Material
- Aluminium, Wasserdichtheit
- Brand
- PEM
- Fastener Characteristics
- Schwimmend, Verriegelung, Außengewinde
- Industry
- Industriell; Kommerziell
- Installation Equipment/Method
- C-Frame Automatischer Vorschub / Feed, C-Rahmen Manueller Vorschub / Feed
- PEM Product Family
- ALA, LN
- Product Type
- Muttern
- Technology Type
- Selbst-einpressend
- Unit (Metric/Unified)
- metrisch
- A Shank Max
- 0.97mm
- E ± 0.38_mm
- 11.18mm
- Hole Size in Sheet + 0.08_mm
- 9.35mm
- Min. Dist. Hole C/L to Edge_mm
- 8.64mm
- Min. Sheet Thickness_mm
- 0.97mm
- C Max._mm
- 9.33mm
- D Max._mm
- 9.28mm
- T1 Max._mm
- 3.31mm
- T2 Max._mm
- 5.34mm
Resources
Installation & Performance Data
| TYPE | THREAD CODE | SHANK CODE | TEST SHEET MATERIAL | INSTALLATION (kN) | RETAINER PUSHOUT (N) | RETAINER TORQUE-OUT (N•m) |
|---|---|---|---|---|---|---|
| AC, AS, LAS, LAC | M4 | 1 | 5052-H34 Aluminum | 8.9 | 1112 | 15.8 |
| AC, AS, LAS, LAC | M4 | 2 | 5052-H34 Aluminum | 8.9 | 1178 | 16.9 |
| AC, AS, LAS, LAC | M4 | 1 | Cold-Rolled Steel | 13.3 | 1334 | 16.9 |
| AC, AS, LAS, LAC | M4 | 2 | Cold-Rolled Steel | 13.3 | 1779 | 22.6 |
| TYPE | THREAD CODE | SHANK CODE | TEST SHEET MATERIAL | INSTALLATION (kN) | RETAINER PUSHOUT (N) | RETAINER TORQUE-OUT (N•m) | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| LAS, LAC | M4 | 1 | 2024-T3 Aluminum | 13.3 | 1067 | 12.4 | ||||
| LAS, LAC | M4 | 2 | 2024-T3 Aluminum | 15.6 | 1334 | 16.9 | ||||
| LAS, LAC | M4 | 1 | 5052-H34 Aluminum | 8.9 | 1112 | 15.8 | ||||
| LAS, LAC | M4 | 2 | 5052-H34 Aluminum | 8.9 | 1178 | 16.9 | ||||
| LAS, LAC | M4 | 1 | Cold-Rolled Steel | 13.3 | 1334 | 16.9 | ||||
| LAS, LAC | M4 | 2 | Cold-Rolled Steel | 13.3 | 1779 | 22.6 |
Inventory
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