S e c t i on 1 - P a ge2 May 2013 Mechanical Rock Bolts (Forged Head Thr eaded) continued T echnical Data C1060 Steel C1070 C1070M 5 / 8 " Bolt 3 / 4 " Bolt 5 / 8 " Bolt 5 / 8 " TBE Bolt Y ield Str ength, min. 13,600 lbs (60 kN) 20,000 lbs (89 kN) 17,100 lbs (76 kN) 28,400 lbs (126 kN) T ensile Str ength, min. 22,600 lbs (100 kN) 33,400 lbs (148 kN) 31,200 lbs (139 kN) 35,000 lbs (156 kN) Ultimate Axial Strain Minimum 12Minimum 8Minimum 2.2C1055 (A29) A29 (Gr . 75 for USA) 5 / 8 " Bolt 5 / 8 " Bolt 3 / 4 " Bolt 7 / 8 " Bolt Y ield Str ength, min. 15,600 lbs (69 kN) 17,000 lbs (75 kN) 25,100 lbs (111 kN) 34,700 lbs (154.3 kN) T ensile Str ength, min. 24,000 lbs (106 kN) 22,600 lbs (100 kN) 33,400 lbs (149 kN) 46,200 lbs (205.5 kN) Ultimate Axial Strain Minimum 10Minimum 8All mechanical physical properties in accordance with ASTM F432, ASTM A29 CSA M430-90 specications 5 / 8 " steel special order www .dsiundergr ound.com