SL™ locknuts are self-clinching fasteners with a deformed-thread locking feature designed to prevent loosening under vibration. They provide a 3-cycle prevailing torque rating and are suitable for use in soft materials with hardnesses up to HRB 80 or HB 150. The fasteners are made from heat-treated carbon steel and feature a thermal oxide finish with light oil. They accept Class 3A/4h metric screws and are rated for service temperatures up to 800°F (426°C), though above 300°F (149°C) the conversion coating may dehydrate. The nylon insert is not used in this type; locking is achieved through thread deformation only.
Type SL self-locking nuts are designed with a unique and economical TRI-DENT® locking feature, which meets demanding locking performance requirements.
| PennEngineering® | bisco industries | |
|---|---|---|
| Product Category | Nuts | Nuts |
| Product Number | SL-M4-1ZI | SL-M4-1ZI |
| Product Name | Trident Heat-Treated Carbon Steel Locknuts - Type SL - Metric | Lock Nuts |
| Type | Locknut; Other; TRI-DENT® Locking Feature | Locknut |
