Thread Rolling Dies Purchase Information

  • Threading rolling machine type or model.
  • Dimensions of fixed and moving dies.
  • Request screw specification, screw sample, or screw related drawing. If the required inner and outer diameters of screws can be provided further, the thread rolling die will be produced according to the provided data. If you need to consult the inner or outer diameter, TAIYA will provide services.

Type Instructions

Type A: single face one-way (S×H×L1/L2×5°)

Type A: single face two-way (top and bottom)(S×H×L1/L2×5°)

Type A: double face two-way (S×H×L1/L2×double face holding angle 5°)

Type B: single face one-way (S×H×L1/L2)

Type B: single face two-way (top and bottom)(S×H×L1/L2)

Type B: double face two-way (S×H×L1/L2)

Thread Type Instructions

Screw classification

Screw thread type classification

Knurling classification

Thread rolling die required material and hardness

TAIYA Material of Rolling Die Plates

Material Type Hardness Suitable for Threading
DC53 HRC62°- 63.5°  Fasteners which are before heat-treatment
SD55 HRC64.5°- 66°   Fasteners which are before heat-treatment / Fasteners of stainless steel
RH3S   HRC64°- 65.5°   Specific for fasteners of stainless steel
SKH9 HRC64.5°- 66°  Fasteners which are before heat treatment/ Grade 8.8 after heat-treatment 
M2 HRC64.5°- 66°  Fasteners which are before heat treatment/ Grade 8.8 after heat-treatment 
RH5 HRC64.5°- 65.5° Fasteners which are grade 8.8-10.9 after heat-treatment
RH6 HRC64.5°- 65.5° Fasteners which are grade 8.8-12.9 after heat-treatment
RH2(Powder Steel) HRC65°- 67° Fasteners which are grade 8.8-12.9 after heat-treatment
M42 HRC66.5°- 68°  Fasteners which are grade 10.9-14.9 after heat-treatment
RH1(Powder Steel) HRC66°- 68° Fasteners which are grade 10.9-14.9 after heat-treatment

Other production requirements for thread rolling die.

Directions For Using Thread Rolling Dies

  • Please pay attention to the device of thread rolling die, keep thread rolling die and screw space parallel to each other, make the threading process stable.
  • Please use the proper size of thread rolling die according to the wire diameter. Using improper wire diameter may lead to a decrease in the life of thread rolling die.
  • It is suggested to use proper lubricating oil in the process of threading to reduce abrasion.