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45 Degree BT40 Pull Stud CNC Pull Stud 20CrMnTi Retention Knobs

Basic Information
Place of Origin: CHINA
Brand Name: QFMH
Model Number: BT30,BT40,BT50
Minimum Order Quantity: 10PCS
Price: USD 1-2/PCS
Packaging Details: PLASTIC BOX
Delivery Time: 5DAYS
Payment Terms: L/C, D/P, T/T, Western Union
Supply Ability: 1000PCS/MONTH
AppliCATEion: CNC Machine Material: 20CrMnTi;
Hardness: 54-57HRC; Pull Stud Type: CNC Pull Stud
Surface Treatment: Black Oxide Thread Size: M12
Weight: 0.1kg
High Light:

45 Degree BT40 Pull Stud


BT40 CNC Pull Stud


CNC Pull Stud 20CrMnTi

BT40 45 Degree High Hardness CNC Pull Studs 20CrMnTi retention knobs


MODEL D D1 D2 M L L1 L2 H H1
BT30 12.50 7 11 M12 43 23 18 5 2.5
BT40 17.00 10 15 M16 60 35 28 6 3
BT50 25.00 17 23 M24 85 45 35 10 5


BT40 pull stud 45 Degree pull studs,Pull stud of minor quality not only decrease the performance of the machine,they are even a safety risk.A breaking pull stud might cause severe damage on machine and workpiece and even injuries on persons.Milling tools BT40 pull stud,BT pull stud Aging treatment 20-40 h super-long heat aging removes residual internal stress during grinding. Deep cooling treatment and thermal aging treatment can reduce residual stress and improve durability and accuracy stability.Adopt surface coating technology to improve the anti-wear ability of the surface, better anti-rust and anti-corrosion effect, more stable accuracy, smoother surface and more beautiful appearance.

● BT Pull Stud Material: 20CrMnTi;
● BT Pull Stud Carburization depth:> 0.8;
● Cnc Pull Stud Hardness: 54-57HRC;
● Retention Knobs Pull Studs Surface "green" special coating treatment, improve the surface hardness, wear resistance, improve cleanliness, more stable accuracy, the surface is more smooth, rust, better corrosion resistance, feel more comfortable and more beautiful appearance.
● BT Pull Stud Thread and other parts of the lower hardness: 35 ± 5HRC,( 59168838, 57344657, 56948422,protection handle thread, the core hardness can withstand shock);
● Knob Stud Cryogenic treatment and heat aging treatment can reduce the residual stress, improve durability and accuracy of stability.




45 degree BT pull stud is a type of tool holder used in machining operations. It is designed to securely hold a tool in place while allowing for easy removal and replacement. The 45 degree angle refers to the angle at which the pull stud is inserted into the tool holder. This angle helps to ensure a tight and secure fit between the tool and the holder, reducing the risk of tool slippage or movement during operation. The BT designation refers to the type of tool holder taper, which is commonly used in milling machines. Overall, the 45 degree BT pull stud is an essential component in tool holding systems, providing stability and precision in machining processes.


BT pull studs are specialized fasteners used in CNC (Computer Numerical Control) machining centers. They are commonly used in combination with BT tool holders to secure cutting tools in place during machining operations.

The pull studs have a unique design that allows for quick and secure tool changes. They typically have a threaded end that screws into the tool holder, while the other end has a flange or knob that is used to pull the stud into place and lock it in position.

The BT pull studs are made from high-quality materials such as hardened steel to ensure durability and reliability. They are also designed to provide a precise fit with BT tool holders, minimizing any potential tool runout or movement during machining.

Overall, CNC BT pull studs play a critical role in ensuring the stability and accuracy of cutting tools in CNC machining centers, making them an essential component in the manufacturing industry.



Contact Details

Phone Number : 13705473076

WhatsApp : +8613705473076