wind turbine foundation cage, anchor bolt Thread rolling operation process:
Rolling thread into requested length according to drawings, and measure the length by regular rules piece by piece. Make sure 100% qualified.
thread production standard according to
GB/T 196-2003 General Purpose Metric Screw Threads-Basic Dimensions
ISO 724:1993,ISO general purpose metric screw threads-Basic dimensions,MOD
GB/T 197-2003 General purpose metric screw threads-tolerances
ISO 965-1 ISO general purpose metric screw thread-Tolerances
Post time: Dec-10-2021