国产精品久久久久久亚洲影视,插我舔内射18免费视频,国产+精品+在线观看,国产精品18久久久久久麻辣,丰满少妇69激情啪啪无

型號： 401099

類別： 螺釘和螺栓

描述： Unbrako Socket Set Screws can withstand tightening torques as much as 40% higher than other set screws, giving you extra holding power and additional safety and reliability. Since holding power is proportional to seated torque, Unbrako Socket Set Screws are the most effective by producing a strong clamping action which resists the relative motion between the assembled parts. Unbrako Knurled Cup Point Set Screws offer exclusive counterclockwise lockingknurles that resist screw loosening or most severe vibration.Counterbored knurled cup self-locking point provides greater vibrational holding power, even in poorly tapped holes.Rounded corners resist cracking and allow set screws to withstand high tightening torques.Key fits deeply into the socket to provide extra wrenching area for secure tightening without reaming the socket or rounding off corners of the key.

品牌官網(wǎng)： www.unbrako.com