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U-NUTユーナット

The Locknut with the stainless steel insert

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.

FUJILOK U-NUT

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. No matter how harsh the use environment is, the FUJILOK U-NUT which is required for safety and peace of mind is the definitive version of the locking nut which continues to evolve in terms of durability, vibration resistance, etc. as well as locking performance.

GU-NUT

The GU-NUT was developed to further improve upon the safety and peace of mind provided with the FUJILOK U-NUT and to create the lock nut standard for the next generation. The shape of the 270° high torque type friction ring (specialized spring) provides an even better locking function.

CLIP U-NUT

"CLIP U-NUT" is combined with the "FUJILOK U-NUT" and metal clip. This simplifies the application, especially in areas with limited access and a confined working space. By simply making a hole in the mating component ( no welding of nut necessary) and applying the CLIP U-NUT , considerable time is saved and overall reduced cost of the application.

BLU-NUT

R & D Product- we have added the FUJILOK U-Nut's functions & capabilities to a blind nut. To meet increasing customer demand and to improve application requirements, we have added the FUJILOK U-NUT's highly rated capabilities and functions to a blind nut and as a result , BLU-NUT will not only improve the application quality but be much more cost effective. We are seeking companies who may be interested in further developing this fastener method.

SU-NUT

Adopted by outdoor facilities such as MEGA SOLAR SYSTEMS for increased protection & security.
We have received many enquiries for an SU-NUT type product to increase protection of equipment and installations from damage & theft. Key facilities such as the Mega Solar System operations are a good example of the type of structures being set up in Japan. The SU-NUT special design works as a visual crime deterrent and also the special tool requirement greatly minimises any attempts to tamper with valuable equipment. We also control the use of the tool by arrangement of a free supply agreement with approved customers thereby further increasing the securty aspect.

FUJILOK U-NUT with FREE SPINNING WASHER

SPECIFICATION: SS400 ・ HOT DIP GALVANIZING
SPECIFICATION: SUS304 ・ FUN COAT (stainless lubrication oil)
To meet requests from various customers, we combined the FUJILOK U-NUT with a free spinning washer. Being a free spinning washer, the mating surface is not damaged.
FUJILOK U-NUT with FREE SPINNING WASHER enables reduced assembling operation time and improves efficiency. This one-part combination means reduced inventory and cost control.

FLANGE TYPE FUJILOK U-NUT in STAINLESS STEEL

We manufactured FLANGE TYPE FUJILOK U-NUT in STAINLESS STEEL mainly used for motorcycles.
FLANGE TYPE FUJILOK U-NUT in STAINLESS STEEL in coarse thread can improves the workability for constructions in public works, construction buildings, railways and bridges, and installation works for solar panels.
Also, this is appropriate for exteriors when you care about the appearance.


U-NUTユーナット

Fastening revolution for bearings.

With FINE U-NUT, variable positioning at the appropriate location is possible and torque management is also easy. This groundbreaking lock nut for use with bearings makes unnecessary of machining key ways on shafts, lockwashers, and a high degree of skill for installation. FINE U-NUT improves the rotational balance of bearings that provide power in all machine industries.

FINE U-NUT

With FINE U-NUT, unlike lockwasher, variable positioning at the appropriate location is possible and torque management is also easy. This groundbreaking lock nut for use with bearings makes unnecessary of machining key ways on shafts, lockwashers, and a high degree of skill for installation. FINE U-NUT improves the rotational balance of bearings that provide power in all machine industries. Reduction of equipment rotation loss and reduction of power consumption are also realized.

FINE U-NUT TOOL SET

It is a useful tool set for fastening FINE U-NUT.


U-NUTユーナット

Prevailing torque type precision locknut

The industry's first prevailing torque type precision locknut. The locking function of the FINE U-NUT is strengthened by having two friction rings (specialized springs).

TWIN FU-NUT

The industry's first prevailing torque type precision locknut. The locking function of the FINE U-NUT is strengthened by having two friction rings (specialized springs). Through the threads and the bearing surface being created at the same time, the TWIN FU-NUT provides both high bearing surface run-out accuracy and an excellent locking function and it always maintains accurate bearing rotation.


U-NUTユーナット

Fuji Seimitsu's anti-loosening quality for bolts

As a comprehensive manufacturer of lock nuts, we applied high quality locking function to the bolts. By using "FUJILOK BOLT N", you will be sure the application is tight and secure.

FUJILOK BOLT N

As a comprehensive manufacturer of lock nuts, we applied high quality locking function to the bolts.
By using "FUJILOK BOLT N", you will be sure the application is tight and secure.


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