AC-0428-2
Floating Self-Clinching Fasteners A4, AS, AC
AC-0428-2
Floating Self-Clinching Fasteners A4, AS, AC
Locking and Non-locking Threads These fasteners provide load-bearing threads in thin sheets and permit up to .030” 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 .038” 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).
Especificaciones
- Código de rosca
- 0428
- Tamaño de rosca
- .250-28 (1/4-28)
- Especificación de rosca
- 2B, ASME B1.1
- Código del vástago
- 2
- Material del inserto
- 300 Series Stainless Steel
- Fastener Materials – Nut
- 300 Series Stainless Steel
- Para uso en láminas de dureza
- HRB 70 / HB 125 or Less
- Float
- .015” minimum, in all directions from center, .030” total
- Categoría del producto
- Floating Self-Clinching Fasteners A4, AS, AC – Unified
- Tipo de rosca
- Internal, Non-Locking
- Marca
- PEM
- Producto de la familia PEM
- AC
- Tipo de producto
- OtherFasteners
- A Vástago máx
- 0.054in
- E ± .015_in
- 0.6in
- Hole Size in Sheet +.003 – .000_in
- in
- Min. Dist. Hole C/L to Edge_in
- 0.42in
- C Max._in
- 0.514in
- D Max._in
- 0.51in
- T1 Max._in
- 0.21in
- T2 Max._in
- 0.31in
Datos de instalación y rendimiento
| Type | Thread Code | Shank Code | Test Sheet Material | Installation (lbs.) | Retainer Pushout (lbs.) | Retainer Torque-out (in. lbs.) | A ±.001 (in.) | A ±0.03 (mm) | B ±.005 (in.) | B ±0.13 (mm) | Haeger Part Number Anvil | Haeger Part Number Punch | Pemserter Part Number Anvil | Pemserter Part Number Punch |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AC-AS-LAC-LAS | 428 | 2 | 5052-H34 Aluminum | 3000 | 400 | 200 | 0.092 | 2.34 | 0.315 | 8 | H-131-04L | H-108-0020L | 8021392 | 975200048 |
| AC-AS-LAC-LAS | 428 | 2 | Cold-Rolled Steel | 5000 | 500 | 325 | 0.092 | 2.34 | 0.315 | 8 | H-131-04L | H-108-0020L | 8021392 | 975200048 |
Inventario
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