T73 drill Bolts
t73 self drilling rock bolt

T73 drill bolts have fully threaded rod sections since continuous thread ensures that rods can be cut and coupled at any point. The trapezoidal thread produces an excellent bond between the drill bolts and grout, and enables connection to conventional drill tooling. The hollow bolt serves for flushing with air or water during drilling, but also for grouting the hole. Upon request, enhanced corrosion protection is available.


T73 drill bolts

Rock bolt Size Outer Dia. (mm) Inner Dia. (mm) Ultimate Load (KN) Yield Load (KN) Weight (Kg/m) Thread

T73/56 73 56 1194 785 10.75 R

T73/53 73 53 1160 970 14.10 R

T73/45 73 45 1630 1180 17.8 R

T73/35 73 35 1980 1355 21.2 R


Anchor Coupling

Coupling Outer Dia. (mm) Length (mm) Weight (Kg) Thread

89 225 3.72 R

89 235 3.90 R

95 245 5.70 R

Anchor Nut

Nut Size Type Key Size (mm) Length (mm) Weight (Kg)

T73 Spherical Collar Nut 95 70 2.22

Anchor Plate

Plate Size Type Dimensions (mm) Thickness (mm) Hole Dia. (mm) Weight (Kg)

T73-56/53 Plat Plate 175*175 34 80 6.85

T73-35/45 Plat Plate 250*250 40 80 18.00

▪ Drill Bit Adapter

Drill Bit Adapter Size Drill Bit Length(mm) Weight(kg)

T73 T103 105 3.08


Centralizer Size Outer Dia. (mm) Length (mm) Weight (Kg)

T73 130 65 1.08

Drill Bits

Drill Bits Type Size Diameter (mm)

EX T73 ø130,ø175

EXX T73 ø130

ESS-F T73 ø130

Clay Bit T73 ø200