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Retention Knob JIS B6339 Pull Studs

1. Material: 20CrMnTi;
2. Hardness: 54-57 HRC;
3. Carbon depth:>0.8;
4. Hardness of thread is lower: 35±5 HRC
  • BT30-30P;BT40-40P;BT50-50P

  • CHONGDE

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Retention Knob JIS B6339 Pull Studs for MAS 403 BT tool holders

JIS 6339 pull studs for JIS B 6339 (MAS-BT) taper shank tool holders. It also call BT30-30P,BT40-40P, &BT50-50P. Made from high quality low carbon alloy steel 20CrMnTi processing thread after carburizing & quenching.


Kindly Note: Please make sure the Retention Knob you choose is the right one for your machine. Using wrong Retention Knob can cause damage to your machine.


Features:

1. Material: 20CrMnTi;

2. Hardness: 54-57 HRC;

3. Carbon depth:>0.8;

4. Hardness of thread is lower: 35±5 HRC, to protect shank thread.

5. Cryogenic treatment and thermal aging treatment can reduce the inner residual stress, improve durability and precision stability.

6. The nickel coating surface of the pull stud has good effects of anti-rust and wear-resisting.



Product Drawing and Size

P207 JIS日本标准-Model

Order   No. Model No. d1 d2 d3 d4 d5 d6 L1 L2 L3 L4 L5 SW KGS
CD130105.3015016 BT30-30P 12 8 16.5 12.5 M12 - 43 23.4 18.4 3 5 13 0.03
CD130105.4015023 BT40-40P 19 14 23 17 M16 7 54 29 23 3 7 19 0.08
CD130105.5015038 BT50-50P 28 21 38 25 M24 10 74 34 25 5 7 30 0.24





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