FRICTION BOLT

Roof bolts are manufactured from hot-rolled, deformed bar, featuring a rib pattern that ensures better adhesion when fixed with chemical anchors.
Has physical characteristics to maximise loads, transfer from the rock to the bolt, with higher transverse ribs, together with lower profile longitudinal ribs. 
Rolled thread nominally equals the column strength of the bar. Available in spin-to-stal (shear pin nut) or reverse spin (nibbed) configurations.
 Bolt Diameter , mm (in.) 16 (5/8) 18 (0.71) 20 (0.79) 25 (1.0)
 Min. Yield Load , kN (ibf)
110 (24.729) 180 (40.466) 160 (35.969) 210 (35.969)
 Min. Yield Strength , Mpa (ksi)
500 (72.52) 600 (87.02) 500 (72.52) 500 (47.210)
 Min. Ult Tensile Load , kN (lbf)
130 (29.225) 250 (56.202) 230 (51.706) 360 (80.931)
 Min. Ult Tensile Strength , Mpa (ksi)
640 (92.83) 820 (118.93) 730 (105.88) 730 (105.88)
Calculated Shear Load , kN (lbf)
130 (29.225) 150 (33.721) 160 (35.969) 210 (47.210)
Standard Elongation , %
16 16 16 16
Uniform Elongation , %
8 8 8 8
Density , kg/m (lb/ft)
1.67 (1.12) 2.14 (1.44) 2.58 (1.73) 3.85 (2.59)
Bar Core Diameter , mm (in.) 16 (58) 18 (0.71) 20 (0.79) 25 (1)
Major Bar Diameter , mm (in.) 17.4 (0.69) 19.8 (0.78) 21.8 (0.86) 24.5 (0.96)
Cross Sectional Area , mm2 (in2) 210 (0.33) 316 (0.49) 316 (0.49) 465 (0.72)
                                                                                                                                                                                              
  • Bolts are manufactured to clients’ requirements 
  • Non-standards available on request
CONTACT
Want to know more? You can contact us by this form.
MAIL
info@wireforce.co.za

PHONE
+27 10 007 3337

ADDRESS
11 Brammer Street 
Industries East
Germiston 
South Africa


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