通风拉销,螺纹销,DIN7979,ISO8735A,DIN7977

Size
Diameter 5mm~40mm.
Material
Alloy Steel 100Cr6
Surface Finish
Gcr15. S45C Stainless Steel SUS303 SUS304.
Pull Dowel Pins are hardened cylindrical pins with an internal thread that an extraction tool can be threaded into for removal of the pin.

Both vented and non-vented Pull Dowel Pins are available. A vented Pull Dowel Pin has a small flat spot along the length of the pin which allows air to escape for easier installation into a blind hole. A non-vented Pull Dowel Pin does not have the flat spot and are typically used on through holes.

They are 2 types of thread pins: Inner thread pins and outer thread pins.  

In the norms, the most common pins are;
DIN7979
ISO8735A
DIN7977
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