Cylinder Bolt Automotive Fasteners Bolt Cylinder Head Bolt Stud

Cylinder bolt is the bolt used on a cylinder head, so the bolt is also known as cylinder head bolt. In an internal combustion engine, the cylinder head (often informally abbreviated to just head) sits above the cylinders on top of the cylinder block. It closes at the top of the cylinder, forming the combustion chamber. This joint is sealed by a head gasket. In most engines, the head also provides space for the passages that feed air and fuel to the cylinder, and that allows the exhaust to escape. The head can also be a place to mount the valves, spark plugs, and fuel injectors. Ever Hardware provides custom-made fasteners and customizable packaging.

Heat treating progress makes the cylinder bolt high strength, the hardness can reach on grade 10.9 or grade 12.9. Heat treating is a group of industrial and metalworking processes used to alter the physical, and sometimes chemical, properties of a material. The most common application is metallurgical. Heat treatments are also used in the manufacture of many other materials, such as glass. Heat treatment involves the use of heating or chilling, normally to extreme temperatures, to achieve the desired result such as hardening or softening of a material. Heat treatment techniques include annealing, case hardening, precipitation strengthening, tempering, normalizing and quenching. It is noteworthy that while the term heat treatment applies only to processes where the heating and cooling are done for the specific purpose of altering properties intentionally, heating and cooling often occur incidentally during other manufacturing processes such as hot forming or welding.