Dry film self -lubricating is connected vicely

The utility model provides a dry film self -lubricating is connected vicely, including a bolt and a nut, the bolt includes head and screw rod, the surface of nut is equipped with the slot along the axial, the nut surface is covered has the coating, and this coating material is look female and dry film self -lubricating agent. The utility model overcomes connect there is easy landing in vice nut when the construction defect among the prior art, the effectual ordinary nut of being different from of colour makes the standard deviation who connects vice torque coefficient obtain fine control, makes the vice torque coefficient of connection can satisfy relevant standard requirement. 本实用新型提供一种干膜自润滑连接副，包括一螺栓和一螺母，所述螺栓包括头部和螺杆，所述螺母的表面沿轴向设有沟槽，所述螺母表面覆有涂层，该涂层材料为色母和干膜自润滑剂。本实用新型克服了现有技术中连接副的螺母在施工时存在容易滑落的缺陷，颜色有效的区别于普通螺母并使连接副的扭矩系数的标准偏差得到了很好的控制，使连接副的扭矩系数能够满足相关标准要求。