Double Headed Bolt Stud M8*M8*46mm

Double headed bolt, also known as "double headed bolt" or "column bolt", is a special fastener with threaded ends and a smooth rod in the middle. It has a significant difference in structure from ordinary bolts (with one end being the bolt head and the other end being the thread).

The most typical application scenario of double headed bolts is where two large components (usually flanges) need to be tightly connected together, especially on equipment that requires frequent disassembly or maintenance.

One end (which we call the "blind end") is firmly screwed into and fixed in the threaded hole of the engine cylinder block integrated with it.
The other end ("free end") passes through the cylinder gasket and cylinder head.Double headed bolts are widely used in various industrial fields:
Automotive industry: engines, transmissions.
Mechanical equipment: flange connections for pumps, valves, compressors, and pressure vessels.
Building structure: Connection of large steel structures.
Electronic devices: Some chassis covers that require grounding or high-strength fixation.

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