尼龙锁紧螺母、法兰锁紧螺母和防振自锁螺母完整指南,适用于汽车、机械和工业应用。
Nylon Insert Lock Nuts (Nyloc): How They Work
尼龙锁紧螺母(通常称为Nyloc螺母,DIN 985)在螺母顶部插入尼龙圈,在螺栓螺纹上产生摩擦锁紧。
High Strength Flange Locking Nuts
高强度法兰锁紧螺母(DIN 6925 / EN 1665)将尼龙插入件的锁定功能与法兰螺母增加的支撑面积结合在一起。
Vibration Proof Self Locking Nuts for Automotive
汽车用防振自锁螺母按照ISO 16130或个别OEM规格定义的振动曲线进行测试。
Lock Nut Type Selection Guide
| Lock Nut Type | Reusable | Temperature Limit | Vibration Resistance | Common Applications |
|---|---|---|---|---|
| Nylon Insert (Nyloc) | 15-20 times | 120°C (standard) | Good | General machinery, appliances |
| Nylon Insert (High Temp) | 10-15 times | 200°C | Good | Engines, exhaust, HVAC |
| All Metal Prevailing Torque | Yes (limited) | 650°C+ | Excellent | High temp, chemical, aerospace |
| Flange Locking (Serrated) | No | 200°C | Very Good | Automotive, wheel hubs, suspension |
| Castle Nut + Cotter Pin | Yes (with new pin) | No limit | Excellent (positive lock) | Wheel hubs, steering, critical safety |
| Lock Washer (Spring) | Yes | No limit | Moderate | Not recommended alone for vibration |
Frequently Asked Questions
尼龙锁紧螺母可以重复使用吗?
可以,尼龙锁紧螺母可重复使用约15-20次,然后尼龙失去抓力。
尼龙锁紧螺母在什么温度下会失效?
标准尼龙锁紧螺母在120°C以上开始失去有效性。高温版本可耐受200°C。
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