Can be used on all types of building construction or for any type of use where an adjustable load bearing member is recurred. The high tensile steel pin is located through a slot in the outer section and a hole on the inner section for coarse adjustment. The cost collar located below the gives fine adjustment for leaving or striking. The roiled thread ensures no loss of material or strength at this critical point. Medium Duty Prop: Code Screw Threaded Tube L/O D/T (mm) Outer Tube L/O D/T (mm) Inner Tube L/O D/T (mm) Height of USE M/n. Max. KIC. 201 220/60.3/3.2 1500/60.3/2.0 1500/48.3/2.0 1750 2650 KIC. 102 220/60.3/3.2 1500/60.3/3.2 1500/60.3/2.0 2000 3150 KIC. 103 220/60.3/3.2 1500/60.3/2.0 2500/48.3/2.0 2500 3650 KIC. 104 220/60.3/3.2 1500/60.3/2.0 3000/48.3/2.0 3000 4150 KIC. 105 220/60.3/3.2 2000/60.3/2.0 3000/48.3/2.0 3000 4650 Heavy Duty Prop: Code Screw Threaded Tube L/O D/T (mm) Outer Tube L/O D/T (mm) Inner Tube L/O D/T (mm) Height of USE (mm) M/n. Max. KIC. 201 220/60.3/3.2 1500/60.3/3.1 1500/48.3/3.1 1750 2650 KIC. 202 220/60.3/3.2 1500/60.3/3.1 2000/48.3/3.1 2000 3150 KIC. 203 220/60.3/3.2 1500/60.3/3.1 2500/48.3/3.1 2500 3650 KIC. 204 220/60.3/3.2 1500/60.3/3.1 3000/48.3/3.1 3000 4150 KIC. 205 220/60.3/3.2 2000/60.3/3.1 3000/48.3/3.1 3000 4650