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Round Telescoping Tubing Locks
Square Telescoping Tubing Locks
Round Tubing And Oval Tubing
Tube Ends, Joiners, & Attachments
1" Square Tubing System - Build-A-Stand
Tables, Table Legs, & Table Parts
Stands & Stand Parts
Bases, Mounts & Clamps
Complete Telescopic Tubing Assemblies
Sheet Metal

Split Collar Telescopic Tube Lock (B)

  • B Style Split Collars are very strong and stiff.
  • They're our strongest lock and are suitable for use with our aluminum tubing or with steel tubing.
  • Features a spring-loaded mechanism and an easy-to-turn 2-finger plastic knob.
  • Available in 1/2" through 1 1/2" diameters.
  • Non-Rotational (NR) compatible 1/2"-1 3/8".
  • Available for purchase a la carte here


Model # Description Material
B-Split Collar Tubing - Aluminum
Lock - 88% Nylon, 12% Fiberglass

Testrite Telescopic Tubing and Locks