Micropiles

Bar Hardware Properties

DYWIDAG Reinforcing Steel ASTM A615 (Grade 75)

THREADBAR ® Designation Coupler Hex Nut
Length Diameter Length
in-lb mm in mm in mm in2 mm2
#11 36 6.37 162 2.25 57 2.88 73
#14 43 7.82 199 2.55 65 3.55 90
#18 57 9.35 238 3.50 89 4.23 107
#20 63 9.68 246 3.86 98 4.50 114

DYWI ® Drill Hollow Bar

Bar Size Coupler Hex Nut
Length Diameter Length
in mm in mm in mm
R51L 7.87 200 2.48 63 2.76 70
R51N 7.87 200 2.48 63 2.76 70
T76N 8.66 220 3.82 97 3.15 80
T76S 8.66 220 3.82 97 3.15 80

DYWIDAG THREADBAR ® Prestressing Steel ASTM A722 (Grade 150)

THREADBAR ® Designation Coupler Hex Nut
Length Diameter Length
in mm in mm in mm in mm
1-1/4 32 6.37 162 2.25 57 2.88 73
1-3/8 36 8.75 222 2.75 70 3.88 98
1-3/4 46 6.80 173 3.13 79 2.90 74
2-1/2 65 10.75 273 4.50 114 5.00 127
Coupler and hexnut develop the full load of the bar ultimate load.
Bearing plates are available in any size and are made from steel material
conforming to ASTM A36 or ASTM A572 grade 50.