M6 x 20mm O2 Tank Security Screws, 30/Pk.

Thumb Screw Security Knobs Grip for O2 Tanks, 30 Pack Knurled Knob Size: Thread Size: M6 (1mm Pitch); Thread Length: 20mm / 0.79″; Round Head Diameter: 14mm / 0.55″; Total Length: 26mm / 1.02″; Color: Black Always tighten the knurled knob securely to prevent any movement of the fixed assembly Do not over-tighten the knob as this may damage or strip the threads in the mating assembly Commonly used in applications that require frequent adjustments or tightening Like Oxygen Cylinder Holders Also Available in White #72-1681PK30W Sold 30/Pack