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Home > Suppliers Companies > DSI Mining Canada > Products > Mining > Mechanical Rock Bolts
DSI Mining Canada

Mechanical Rock Bolts

Dimensions Head Type 5/8" Bolt 3/4" Bolt 7/8" Bolt
Body Diameter  E All bolts ±0.56" (±14.2mm) ±0.68" (±17.3mm) ±0.79" (±20.1mm)
Head Across Flats  F 1-1/8" Square
T-Dome		 1.088" - 1.125" (27.64 - 28.58 mm)
0.906" - 0.938" (23.01 - 23.83 mm)		  
Head Across Corners G 1-1/8" Square
T-Dome		 1.425" - 1.591" (36.19 - 40.41 mm)
1.244" - 1.326" (31.60 - 33.68 mm)		  
Head Height H 1-1/8" Square & T-Dome 0.40" (10.16 mm)  
Thread Size (left and right)  I All Bolts 5/8”- 11 UNC 3/4”- 10 UNC 7/8”- 9 UNC
 
All dimensions in accordance with ASTM F432 & CSA M430-90 specifications
Technical Data   C1060 Steel C1070 C1070M
5/8" Bolt 3/4" Bolt  5/8" Bolt  5/8" TBE Bolt
Yield Strength, min. 13,600 lbs
(60 kN)		 20,000 lbs
(89 kN)		 17,100 lbs
(76 kN)		 28,400 lbs
(126 kN)
Tensile Strength, 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 12% Minimum 8% Minimum 2.2%
  C1055 (A29) A29 (gr75 for USA)
5/8" Bolt 5/8" Bolt 3/4" Bolt 7/8" Bolt
Yield Strength, min. 15,600 lbs
(69 kN)		 17,000 lbs
(75 kN)		 25,100 lbs
(111 kN)		 34,700 lbs
(154.3 kN)
Tensile Strength, 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 10% Minimum 8%
 
All mechanical & physical properties in accordance with ASTM F432, ASTM A29 & CSA M430-90 specifications 5/8" steel special order