The whole length of the rod body has continuous thread compression, and the whole length is equal in strength; the prestressing washer and the spherical nut are installed on the tightening end. Fiber reinforced plastic FRP mine bolt is made of glass fiber yarn, resin and curing agent through extrusion, stretching and high temperature curing. The shape of the FRP bolt is full thread, and the thread is left-handed or right-handed.
The anchor rod has the functions of high tensile strength, easy to cut, no damage to teeth, no sparks, safe excavation efficiency, light weight, corrosion resistance, flame retardant, antistatic and other functions, and can be permanently supported to replace metal anchor rod reinforced composite materials. materials, new products.