Place of Origin : Yantai,China
Delivery Terms : By Sea
Delivery Time : 7 Days
Payment Terms : TT
Specifications of friction bolt
DIA 33mm 39mm 42mm 47mm
Pipe thickness(mm) 1.8-3.2mm(as customer required)
Min. Yield Strenght(KN) 78 88 95 124
Min. Breaking Strenght(KN) 103 116 123 160
Max. Breaking Strenght(KN) 117 132 140 186
Elongation >16% >16% >16% >16%
Anchoring 4-7tons 5-8tons 5-8tons 6-12tons
Head length 40-50mm
Length of the friction bolt:90cm,120cm,150cm,180cm,200cm,250cm,as your request
Friction Bolt Is A Kind Of Underground Mining Roof Bolts,also Known As Split Set Bolt.
It Is An Effective Solution In underground Mining Roof Supporting, Tunnel Construction.
It Is A High-strength “C” Shaped Steel Bolt With Two Parts, A Tube And A Matching Domed Bearing Plate.
One End Of The Tube Is Tapered For Easy Insertion Into A Drill Hole And The Other Has A Welded Ring Flange To Hold The Bearing Plate.
More Information Please Visit:https://whollyrockbolt.com/product/friction-bolt-33mm-split-set
