1. Daraja: Daraja la 4.8, Grade 8.8,Grade10.9,Grade12.9 A2-70, A4-70, A4-80
2.Ukubwa:1/4″, 5/16″, 3/8″, 1/2″, M6, M8, M10, M12
Kufikiri: 6mm, 8mm, 9mm, 11mm, 12mm
Urefu wa spring: 20mm, 40mm, 60mm
3. Kawaida: (DIN,ISO, ASME /ANSI, JIS ,CNS ,KS,NF ,AS/NZS,UNI,GB)
4. Uthibitisho: ISO9001,CE,SGS