KanLok
Anti-Loosening Bolt

KanLok the Perfect Anti-Loosening Nut







The best solution to the vibration loosening


The vibrational loosening is an important phenomenon that often causes failures in bolted joints. Consistent vibration of the structure and machinery eventually loosens the bolt assembly and may even result in catastrophic disaster. In order to prevent such failure, many companies and government agencies use large sum of expenditures for maintenance of bolted connections. KanLok uses its unique self-locking mechanism to effectively resist the loosening effect caused by prolonged vibration. KanLok's simple yet highly effective bolt assembly will ultimately make the structures and machineries not only safe and reliable but also very cost efficient and easy to maintain.

KanLok is

▷ Very easy to install
▷ Highly effective
▷ Simple and reliable
▷ Cost efficient
▷ Low maintenance

KanLok is used in

▷ Railway construction
▷ Ship building industry
▷ Aerospace industry
▷ Construction industry
▷ Power Plant
▷ Steel mill
▷ Machinery
▷ and many others

Components and Installation


Nut Shank Kanlok Assembly

KanLok consists of a nut and a shank, which is threaded in the same direction as the bolts. First, the nut is fitted onto the shank. The shank is then completely tightened along the bolt to the surface that is to be secured by bolted connection. Once the shank is firmly tightened against the surface, the nut is also affixed to the surface in order to trigger the self-locking mechanism of KanLok.



Mechanism


KanLok uses the action of the nut fitted on the shank in order to resist loosening due to intense vibration. Due to the direction of the threads on the bolt and the shank, the nut is rather tightened and pushed against the surface as KanLok assembly is being loosened. The moment on KanLok assembly that loosens the lock is converted into the axial stress on the face of the nut due to the nut pushing against the surface. The strength of the axial force against the surface is directly related to the magnitude of the moment applied about the bolt. Therefore, KanLok effectively resists loosening action of the lock due to vibration by using self-locking principle.


Dimension


Thread Dimensions (US Imperial)
Nominal
Thread Size
Threads per Inch
Coarse (UNC)
Threads per Inch
Fine (UNF)
Nominal
Diameter
W
(Inches)
H
(Inches)
6 32 40 0.1380 - -
8 32 36 0.1640 - -
10 24 32 0.1900 - -
12 24 28 0.2160 - -
1/4 20 28 0.2500 7/16 11/64
5/16 18 24 0.3125 1/2 7/32
3/8 16 24 0.3750 9/16 1/4
7/16 14 20 0.4375 5/8 19/64
1/2 13 20 0.5000 3/4 11/32
9/16 12 18 0.5625 13/16 3/8
5/8 11 18 0.6250 15/16 27/64
3/4 10 16 0.7500 1-1/8 1/2
7/8 9 14 0.8750 1-5/16 37/64
1 8 12 1.0000 1-1/2 43/64
1-1/8 7 12 1.1250 1-11/16 3/4
1-1/4 7 12 1.2500 1-7/8 27/32
1-3/8 6 12 1.3750 2-1/16 29/32
1-1/2 6 12 1.5000 2-1/4 1

Thread Dimensions (Metric)
Nominal
Thread Size
Thread Pitch
(mm)
Nominal
Diameter
W
(mm)
H
(mm)
M3 0.5 3 5.5 2.125
M4 0.7 4 7.0 2.925
M5 0.8 5 8.0 3.650
M6 1 6 10.0 4.150
M8 1.25 8 13.0 5.50
M10 1.5 10 17.0 7.180
M12 1.75 12 19.0 8.180
M14 2 14 22.0 9.180
M16 2 16 24.0 10.180
M18 2.5 18 27.0 12.215
M20 2.5 22 32.0 13.215
M22 2.5 22 32.0 14.215
M24 3 24 36.0 15.215
M27 3 27 41.0 17.215
M30 3.5 30 46.0 19.260
M33 3.5 33 50.0 21.260
M36 4 36 55.0 23.260
M39 4 39 60.0 25.260

In line with our policy of continuous product development, the information and specifications
in this website are subject to change without notice.

Test Results


KanLok has passed the strong vibration test under the USA’s National Aerospace Standard (NAS) 3350 and 3354 by withstanding 60 minutes of continuous vibration, which is far beyond the passing requirement of withstanding 17 minutes of vibration without significant loosening. The test clearly demonstrated the reliability and effectiveness of the anti-loosening mechanism implemented in KanLok.




Testing date: February 3rd, 2014
Location: The Gunma Pre.'l Industrial Technology Center, Japan
Testing Machine: SV-5500-220T, IMV Co., Ltd.
Room Temperature: 22ºC
Testing Duration: 17 minutes (10:59 AM ~ 11:17 AM)
Testing Condition: Frequency: 29.5 Hz (1755/min), Amplitude: 11.42 mm (20G)
Result: Exceptionally passed the requirement (17 minutes) of NAS 3350 and 3354

Applications


KanLok may greatly improve the stability and reliability of various structures and machineries that are exposed to constant vibration. Application of KanLok’s self-locking mechanism will significantly lower the cost and labor used to examine and maintain proper bolted connections in railroad, automobile, ship building, aircraft, construction machine, steel mill, power plant, oil plant, seismic isolation system, and many other industries.

Railway Bridge Construction Machine

Aircraft Automobile Ship Building

Seismic Isolation System