VARGAL^®主要有常規型STANDARD和薄型LOW，各自種類可供應標準牙與細牙。VALGAL^®標準型彈簧鎖緊螺母基本尺寸與意標UNI 9319一致。

> VARGAL NORMAL^® 

> VARGAL^® FINE

> VARGAL^® LOW

> VARGAL^® LOW-FINE

VALGAL^® 優勢

VARGAL^® 鎖緊螺母通過彈簧鎖緊部件的彈性變形實現配合螺紋徑向鎖緊，其在震動環境中鎖緊效果表現優異：
> 優異的抗振動性。
> 高溫應用。
> 得益于新型彈簧鎖緊元件，其在安裝過程中產生的摩擦進一步分散減小。
> 即使在多次裝配后，彈簧鎖緊螺母的鎖緊效果也不會出現明顯的下降。

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.