VALGAL^®主要有常规型STANDARD和薄型LOW，各自种类可供应标准牙与细牙。VALGAL^®标准型弹簧锁紧螺母基本尺寸与意标UNI 9319一致。

> VARGAL NORMAL^®

> VARGAL^® FINE

> VARGAL^® LOW

> VARGAL^® LOW-FINE

VALGAL^® 优势

VARGAL^® 锁紧螺母通过弹簧锁紧部件的弹性变形实现配合螺纹径向锁紧，其在震动环境中锁紧效果表现优异：
> 优异的抗振动性。
> 高温应用。
> 得益于新型弹簧锁紧元件，其在安装过程中产生的摩擦进一步分散减小。
> 即使在多次装配后，弹簧锁紧螺母的锁紧效果也不会出现明显的下降。

PRELIMINARY REMARKS
Self-locking nuts are more often used in critical applications,which require good resistance to vibrations and dynamic stress.Due to those needs, constant improvements are made by Gally spa to control the ension during the assembling, by working on the friction coefficient parameter, which affects the clamping force on the screw with the applied torque.

The VARGAL^® 10 nuts are now provided with new concept springs,which are seen as best practice to the above-mentioned needs by reducing the dispersion of the friction coefficient, generated by the braking system.

The new spring allows the VARGAL® 10 nuts to:
- Reduce the tolerance limit of the screwing prevailing torque C1 C2;
- Reduce the tolerance limit of the tightening torque C3 C4;
- Adjust the prevailing torque to the requested level of resistance to vibrations;
- Guarantee controlled tightening with higher clamping forces;
- Carry out precision tightening with automatic wrenches;
- Keep excellent resistance to high temperatures.

IMPORTANT
VARGAL^® 10 nuts, both STANDARD and LOW ones, easily surpass the proof load required by European standards ( especially EN ISO 2320).However they differ from these same standards as regards resistance to unscrewing under severe vibration conditions, which is much higher in comparison to all the other locknuts known at present, and concerning the height. All VARGAL 10 nuts are supplied with AISI 631 stainless steel springs.