Automobile standard parts means accessories with national or industrial standards for structure, size and appearance, including bolts, gaskets, nuts, screws, etc., which are widely used in the production and assembly process of automobile products, mainly for connection and imprisonment. The part number of the parts starts with “Q”, the bolt type drawing number is composed of the bolt type, specification model, mechanical strength code and surface treatment code.

The bolts of the type "Q150B" are ordinary hexagon bolts. The thread structure is coarse and the tooth pitch is 1.75mm.

The bolt of the type "Q151B" is a common hexagonal bolt. The thread structure is a semi-threaded fine tooth with a tooth pitch of 1.25 mm.

the bolt of the type "Q173B" is a bolt with a hole in the ordinary hexagon head. The thread structure is a semi-threaded fine tooth with a tooth pitch of 1.25 mm. Other parameters are attached.

Please note:

1、Standard parts for bolts are national standard. The same type of products produced by different manufacturers can be used universally.

2、The selection of bolts in daily Maintenance can be judged by bolt type, bolt size (E.g. screw diameter and length), mechanical performance grade and surface treatment process. Mechanical properties can be selected with equal or greater strength, and surface treatment characteristics do not affect under normal environment. Selection of bolts.

If there is any inquiry about the truck bolt, connect rod bolt, control arm bolt, wheel bolt, please feel free to contact us.