GRP BOLT: Is made from good quality glass fibers by impreganating in resins. The GRP bolt nut assembly shall be compatible to each other and shall confirm to and perform too the standards specified in British standard specifications. BS: 7861 Part - 1: 1996.

NUT: The nut is of GRP, hexagonal 36mm across flat and is provided with shear Pin.

DOMED BEARING PLATE: Is made of GRP or Plastic.

APPLICATION: Widely used in Underground coal mines, slope Engineering, tunnel, large cave support as well as restoration of engineering structures to improve the strength and stability of surround rock mass and other structures.

ADVENTAGES OF GRP ROCK BOLT AGAINST STEEL BOLTS

S.No	PARAMETER	GRP	STEEL
1	ELECTRICAL RESISTANCE	NON CONDUCTIVE	CONDUCTOR
2	CORROSSION RESISTANCE	ANTI CORROSIVE MATERIAL	CORROSION TO MOISTURE / SOIL
3	TENSILE STRENGTH	860 N/mm2	760 N/mm2
4	WEIGHT	25% OF STEEL	75% MORE
5	SAFITY	NO DAMAGE TO CUTTING TOOL	DAMAGES THE CUTTING TOOL
6	HANDLING & INSTALLATION	EASY TO CARRY AND INSTALLATION	REQUIRE MORE SUPPORT