Item Code #Chair/Table Log This Item Will FitRound Tube Fraction (Inches) DiameterRound Tube Decimal (Inches) DiameterRound Tube Metric (mm) DiameterSquare Tube Fraction (Inches) DiameterSquare Tube Decimal (Inches) DiameterSquare Tube Metric (mm) DiameterHeight of Cap Metric (mm)Height of Cap Decimal (Inches)Height of Cap Fraction (Inches)Metal-Core Enhanced Technology Included
HUFRS1Round & Square3/8 to 1/20.39 to 0.5110 to 135/16 to 7/160.31 to 0.438x8 to 11x11170.6711/16 
HUFRS2Round & Square9/16 to 11/160.55 to 0.7114 to 181/2 to 9/160.47 to 0.5912x12 to 15x15220.877/8 
HUFRS3Round & Square3/4 to 15/160.75 to 0.9419 to 245/8 to 13/160.63 to 0.7916x16 to 20x20301.181-3/16 
HUFRS4Round & Square1 to 1-3/160.98 to 1.1825 to 3013/16 to 10.83 to 0.9821x21 to 25x25341.341-5/16 
HUFRS5Round & Square1-1/4 to 1-7/161.22 to 1.4631 to 371 to 1-1/41.02 to 1.2226x26 to 31x31401.571-9/16 
HUFRS6Round & Square1-1/2 to 1-3/41.5 to 1.7738 to 451-1/4 to 1-7/161.26 to 1.4632x32 to 37x37491.931-15/16 
HUFSQ7Square   1-7/16 to 1-5/81.42 to 1.6536x36 to 42x42361.421-7/16