The current situation of the metric hexagon head bolts is a regular hexagon. Its six sides are of equal length and all six interior angles are 120°. You can easily tighten and loosen it with tools such as a wrench or socket.
The head size of metric hexagon head bolts varies according to the specifications of the bolts. Generally speaking, the larger the diameter of the bolt, the greater the distance to the opposite side and the thickness of the head, thereby ensuring sufficient strength and operating space.
The hexagon head bolts are usually smoothed, and some have knurled or other anti-slip treatments to facilitate your better grip and operation during assembly. Its head will be marked with different hardness grades, models, etc., making it convenient for you to distinguish different bolts.
This hexagon head bolts can be used for the assembly of automobiles, bicycles and furniture appliances. They are also used in pavilions and trailers. The hot-dip galvanized material can resist the erosion of rain and snow. They can prevent hardwood and steel from falling off.
The standardized dimensions of metric hexagon head bolts can ensure consistency in load-bearing joints. They are applicable in heavy-duty operations, such as fixing engine blocks and steel beams in construction. We have supplies worldwide. Avoid mixing them with imperial nuts or tools.