Two sets of 1/2 “ diameter nuts and bolts (our A-lock) were supplied to independent Laboratory  for the vibration test.  One set was made from 18-8 stainless steel and one set was made from low carbon steel.  The steel bar (6.0” long x 1.0” wide x ½” thick) was attached at one end to a shaker arm, end other end of the bar was free hanging (see fig.).  The nut was torqued to 45 ft/lb.
The duration of the random vibration test was one hour for each X, Y and Z axis, and subjected to a frequency ranging from 20 to 2000 Hz as shown in the data sheet below.
The test results showed no visual anomalies noted on units.  The certification was issued per specification
MIL-STD-810D, Meth. 514.3, Proc. 1 Cat. 4

Asymmetric Fasteners Inc.

 TSA 3

 TORKSLEEVE

mounts one or more components onto a single sleeve

 Self locking vibration resistant nuts and bolts

 A SUPERIOR WAY TO FASTEN ROTATING COMPONENTS.  

 Product Certification

 call us  908-684-4025

TSA

 Vibration Resistance Certified per  Military Stdandard 810D Method 514.3 

ASYMMETRIC THREAD

 No additional locking devices - free turning

 New sleeve technology for mounting components onto a keyless shaft.

 PATENTED

​​​  A breakthrough in thread design has led to the development of vibration resistant fasteners featuring a two-part design that is the SIMPLEST way to mount gears, sprockets, pulleys onto a keyless shafts.

 D-Locknut

 TSLock

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