PRODUCTS

Rock Bolt

Overview

A rock bolt is an essential material for stabilizing rock excavations. Rock bolts work by knitting the rock mass together, transferring load from the unstable exterior to the confined interior of the rock mass.

Features

  • Fully threaded SD400 25/29mm rock bolt up to 12m
  • Assembled with a convex plate and a ring nut
  • Anti-corrosion hot-dipped galvanized bolt available (option)
  • Anti-corrosion hot-dipped galvanized bolt available (option)
  • Anti-corrosion electroplated ring nut available (option)

Specification

Product Diameter
(Ø)
Mechanical Properties Elongation
(%)
Bend Angle Chemical Composition
Yield Point
(N/㎟)
Tensile Strength(N/㎟) P S
SD300 D25 300~420 1.5 times the yield strength or more 16 or more 180° 0.050 이하 0.050 이하
D29 18 or more
SD400 D25 400~520 1.5 times the yield strength or more 16 or more 180° 0.045 이하 0.045 이하
D29 18 or more
SD500 D25 500~650 1.5 times the yield strength or more 12 or more 90° 0.040 이하 0.040 이하
14 or more

Application

Installation Flow (Tunnel)

  • Tunnel Reinforcement

Installation Flow (Slope)

  • Slope Stabilization

Subcomponents

Ring Nut Hexagon Nut Coupler Convex Plate Flat Plate Stud Plate