A nut is a nut, which is a part that bolts or screws are screwed together for tightening. Nuts are divided into several types according to different materials: carbon steel, stainless steel, copper, etc. Common types of nuts include external hexagon nuts, square nuts, lock nuts, wing nuts, flange...
Stainless steel fasteners are a specific professional term concept that includes a wide range of products. Stainless steel fasteners are usually used to fasten more expensive machine parts because of their appearance, durability, and strong corrosion resistance.
Stainless steel standard faste...
Carriage bolts are important components in a variety of machinery and construction applications, performing the critical function of securely fastening two or more components together. These bolts are specifically designed to prevent rust and corrosion, ensuring long-term reliability and safety f...
On January 8, 2024, the “2023 Top Ten Export Member Leading Enterprises” conference was held in Yongnian, Hebei Province. Our general manager Murphy went to the conference to receive the award. Hebei Chengyi Engineering Materials Co., Ltd. won the fifth place and the third place in th...
1.Concept
An external hexagonal bolt is a metal accessory, also known as an external hexagonal screw, an external hexagonal screw or an external hexagonal bolt.
2.Surface treatment
In the manufacturing process of bolts, surface treatment is one of the indispensable links. It can make the surfa...
On December 25th, we Chengyi will celebrate Christmas together!
When I entered the company early in the morning, what I saw was the beautifully decorated Christmas tree decorated by the company. Gifts were piled next to it. There were gifts specially prepared by the company on the desk of ever...
As an experienced fastener manufacturing supplier, Chengyi supplies high-quality stainless steel fasteners, galvanized fasteners, carbon steel fasteners, etc. to the world. Suitable for construction projects, steel structure projects, bridges, tracks, high voltage and other projects.
As the first...
On December 13, 2023, two Russian customers came to visit Chengyi as scheduled. Our general manager personally received the two customers and took them to visit our factory and warehouse. Both parties happily took a group photo as a souvenir.
Accompanied by our general manager Murphy, the custom...
1. Definition of carriage bolt
Carriage bolts are divided into large semi-round head carriage bolts (corresponding to standards GB/T14 and DIN603) and small semi-round head carriage bolts (corresponding to standard GB/T12-85) according to the head size. Carriage bolt is a type of fastener consis...
1. Name
Cylindrical head hexagon socket head screws, also referred to as hexagon socket head bolts, cup head screws, and hexagon socket head screws, have different names, but they mean the same thing. Commonly used hexagon socket head screws include grade 4.8, grade 8.8, grade 10.9, and grade 12...
In the world of fasteners, one particular product stands out for its versatility and performance – hexagon socket head cap bolts. With its unique design and wide range of applications, the fastener has become a hot topic among engineers and industrial professionals alike.
1. Streamlined des...
Anchor bolts are essential fasteners in a variety of applications, and our company takes pride in the efficient delivery and careful packaging of these versatile components. Our focus on performance and reliability ensures that each anchor is securely packaged for safe shipping. Our commitment to...