Product Name
Leister 100.775 - SPRING WASHER M3
Brief Description
A Leister 100.775 Spring Washer M3 is a specialized split lock washer designed to provide tension and prevent the loosening of M3 threaded fasteners in mechanical assemblies, particularly those subject to vibration, shock, or thermal expansion.
Popular Applications & Uses
- Securing bolts and screws in machinery and equipment subject to vibrations and dynamic loads.- Maintaining tension in joints experiencing thermal expansion and contraction.- Used in plastic welding equipment, such as the Leister Hot Jet S, as a replacement part.- General assembly applications in automotive, construction, and marine installations.- Absorbing shocks and vibrations to protect delicate components and prevent damage to joint assemblies.
Industries that Commonly Use It
- Aerospace/Defense- Automotive Service/Repair- Construction/ Building Services- Electrical Services or Products- Energy- General Manufacturing- Industrial Supply- Marine- Metal Fabrication- Plastic Fabrication- Prosumer- Transportation/ Specialty Vehicle
Special and Unique Features
- Designed to DIN 127B specification, often with a rectangular cross-section and straight cut ends.- Provides a spring-like force to maintain tension and resist fastener rotation.- Acts as a buffer to absorb shocks and minimize damage in dynamic applications.- Specifically identified as a replacement part for Leister hot air tools, such as the Hot Jet S.
Key Properties
- **Size:** M3 (for 3mm thread size).- **Internal Diameter (ID):** Approximately 3.1mm to 3.4mm.- **External Diameter (OD):** Approximately 5.2mm to 6.2mm.- **Thickness:** Approximately 0.8mm to 2.5mm.- **Material:** Commonly Stainless Steel (A2, A4, SS304) or Spring Steel, offering corrosion resistance and durability.- **Function:** Provides axial load and torsional resistance to prevent loosening.
Surface Compatibility
- Compatible with various metal surfaces (e.g., steel, aluminum) when used with appropriate M3 bolts, nuts, and machine screws.- Material selection should be compatible with the fastener and mating surfaces to prevent galvanic corrosion.
Known backups / known substitutes
- Other types of lock washers: Toothed lock washers (internal, external, combo), Belleville washers (disc springs), Wave washers.- Thread-locking compounds (e.g., liquid threadlockers).- Prevailing-torque nuts (e.g., nylon lock nuts, metal lock nuts).- Wedge-locking systems (e.g., Nord-Lock washers).- Flat washers (primarily for load distribution, not anti-loosening).
Comparison Note
- Spring washers (split lock washers) are a common and cost-effective solution for preventing loosening in light-to-moderate vibration environments.- They offer a balance between locking ability and ease of disassembly compared to more aggressive locking methods like wedge-locking systems or certain thread-locking compounds.- While effective for many applications, for critical vibration environments, modern prevailing-torque nuts or wedge-locking systems may be considered in addition to or instead of traditional lock washers.
Search Tags
Leister 100.775, Spring Washer M3, Lock Washer M3, Split Washer M3, Fastener M3, Leister replacement part, Hot Jet S part, Metric Washer, Anti-vibration washer, DIN 127B washer, Stainless Steel washer
