Flexible metal conduit , Flexible electrical conduit , Stainless steel Flexible conduitTechnical Data: SquareLok Style (SL) SquareLok tubing is produced from a continuous metal strip, and is held in position by locking one leg of one profile over the leg of the adjacent profile.
Size Inside Diameter Outside Diameter Coiling Diameter Weight Breaking Load Min TongFengflex Part Number
5/32” 0.156” 0.235” 1.80” 0.030 lb/ft 145 lbs. SL-SS-0025
3/16” 0.188” 0.266” 1.80” 0.033lb/ft 150 lbs. SL-SS-003
7/32” 0.218” 0.303” 1.80” 0.040 lb/ft 155 lbs. SL-SS-0035
1/4” 0.250” 0.329” 2.0” 0.041 lb/ft 190 lbs. SL-SS-004
9/32” 0.282” 0.375” 2.0” 0.048 lb/ft 200 lbs. SL-SS-0045
5/16” 0.313” 0.410” 2.0” 0.055 lb/ft 200 lbs. SL-SS-005
3/8” 0.375” 0.500” 2.0” 0.088 lb/ft 225 lbs. SL-SS-006
1/2” 0.500” 0.625” 2.5” 0.106 lb/ft 250 lbs. SL-SS-008


OD tolerance is +/- 0.008 inches    ID tolerance is +/- 0.015 inches (.4mm)  Fully InterLok Style (FI) InterLok metal strip and the edges of the strip are completely interlocked with each other.  This offers increased crush protection, and higher axial strength.
Size Inside Diameter Outside Diameter Coiling Diameter Weight Breaking Load Min TongFengflexPart Number
3/16” 0.188” 0.266” 2.0” 0.041 lb/ft 190 lbs. FI-SS-003
7/32” 0.218” 0.303” 2.0” 0.045 lb/ft 200 lbs. FI-SS-0035
1/4” 0.250” 0.329” 2.0” 0.046 lb/ft 250 lbs. FI-SS-004