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How to choose a hex bolt manufacturer

  • A brief introduction of hex bolt manufacturers: Ningbo Zhenhai Yongding Fastener Manufacturing Co., Ltd. is one of the manufacturers of hex bolts. The company was founded in 2002 and was formerly named Ningbo Zhenhai Ningding High-strength Fastener Factory in 2008. It specializes in producing High-strength bolts and threaded rods. The company has complete production facilities, complete testing equipment, and product quality has passed the ISO9001~2000 quality management certification system.

    Hexagonal bolts refer to fasteners composed of heads and screws. Bolts are classified into iron bolts and stainless steel bolts according to their materials, namely, hexagonal head bolts (partially threaded)-Class C and hexagonal head bolts (full threaded)-Class C. A type of fastener consisting of a head and a screw (cylinder with external thread), which needs to be matched with a nut to fasten and connect two parts with through holes.

    The classification of hexagonal bolts: 1. According to the force mode of the connection, there are ordinary and reamed holes. The bolts used for reaming holes should match the size of the hole and be used when subjected to lateral force.

    1. According to the shape of the head, there are hexagonal heads, round heads, square heads, countersunk heads, and so on. Generally, countersunk heads are used in places where the surface after connection is required to be smooth without protrusions, because the countersunk head can be screwed into the part. The head can also be screwed into the part. The tightening force of the square head can be larger, but the size is large. The hexagon head is the most commonly used.

    The connecting rod bolts of diesel engines are for one-time use and are not allowed to be reused. If the connecting rod bolts are repeatedly used, due to the large force and the elongated bolts, it is very easy to cause the bearing bush to roll and burn due to insufficient bolt tightening force; at the same time due to insufficient tightening force, the matching gap between the bearing bush and the crankshaft journal Increased, resulting in low oil pressure, causing excessive wear of the bearing bushes and bush burning accidents.

    If you want to choose a good hex bolt manufacturer, take a look at Ningbo Zhenhai Yongding Fastener Manufacturing Co., Ltd. Its products have high safety performance, good quality and long service life. It is a good choice.)