Waterproof Anchoring Agent for Coal Mine is widely used in all kinds of roadway support in coal mine, railway, hydropower and other projects. The full length of bolt thread is equal in strength, and the bearing capacity of bolt is 40% higher than that of bolt of the same specification. The use range of anchor rod is expanded, which can realize end anchor, lengthened anchor and full anchor. Easy to operate, low price.
Introduction of threaded bolt
Waterproof Anchoring Agent for Coal Mine is widely used in all kinds of roadway support in coal mine, railway, hydropower and other projects. The full length of bolt thread is equal in strength, and the bearing capacity of bolt is 40% higher than that of bolt of the same specification. The use range of anchor rod is expanded, which can realize end anchor, lengthened anchor and full anchor. Easy to operate, low price.
Advantages of threaded bolt
The full length of bolt thread is equal in strength, and the bearing capacity of bolt is 40% higher than that of bolt of the same specification. The use range of anchor rod is expanded, which can realize end anchor, lengthened anchor and full anchor. Easy to operate, low price.
Product structure characteristics of threaded bolt
The whole length of the rod body has rolled continuous thread, and the whole length is equal strength; The fastening end is provided with a prestressed gasket and a ball-shaped nut.
Screw bolt product technical parameters
Material 20MnSi strength
Yield strength (MPa) Tensile strength (MPa) Elongation (%) Yield load (KN) Tensile load (KN) Kg/m specifications
φ16 ≧345 ≧510 ≧25 ≧69 ≧100 1.6
φ18 ≧345 ≧510 ≧25 ≧87 ≧126 2.0
φ20 ≧345 ≧510 ≧25 ≧108 ≧156 2.5
φ22 ≧345 ≧510 ≧25 ≧131 ≧189 3.0
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