1. Pakāpe: 4.8. klase, 8.8. klase, 10.9. klase, 12.9. klase A2-70, A4-70, A4-80
2. Izmērs:1/4″, 5/16″, 3/8″, 1/2″, M6, M8, M10, M12
Izmērs: 6mm, 8mm, 9mm, 11mm, 12mm
Atsperes garums: 20mm, 40mm, 60mm
3. Standarts: (DIN,ISO, ASME/ANSI, JIS, CNS, KS, NF, AS/NZS, UNI, GB)
4. Sertifikācija: ISO9001,CE, SGS