PERFORMANCE
· Twin-Lock® washers ensure the ultimate fastening performance for joints under extreme vibrations or dynamic loads.
· The coefficient of friction of the outside knurled surface of the washer is much higher than the coefficient of friction of the cam surface.
· The hardness of Twin-Lock® washers is higher than the strength of all classes of bolt/nut (8.8, 10.9 and 12.9).
· This unique cam system uses tension to create high force in a fastened joint that is subjected to vibrations.
ADVANTAGES
· Reusable without loss of performance
· Can be used with any kind of bolt/nut of any class of resistance (up to 12.9)
· No risk of hydrogen embrittlement
MATERIALS
· Carbon steel, hardness 465-550 HV 10 after hardening and tempering
· Stainless Steel AISI 316L according to EN 10088-1.4404, surface hardness ≥550 HV 0.05 after surface hardening
SURFACE TREATMENTS
· Delta Protekt® KL100 + VH301 Cr6 free, red corrosion resistance min. 600 hours (salt spray corrosion test according to ISO 9227)
· Mechanical Zinc-plating + sealing Cr6 free, red corrosion resistance min. 600 hours (salt spray corrosion test according to ISO 9227)