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INTRODUCTION OF APPLICATIONS

U-NUT ゆるみ止めナットの決定版

FUJILOK U-NUT was a groundbreaking Locknut introduced by Fuji Seimitsu as the first in the industry to feature a metal ring locking function.
FUJILOK U-NUT sparked a revolution in the area of bolts and nuts where up until that point loosening had been considered unavoidable. It has passed over 50 years since the birth.
FUJILOK U-NUT is now the highly regarded as the first name in Locknuts across all industries from steel structures such as railways and connecting bridges to automobiles, motorcycles, and on up to industrial machines.