DIN 835 b1=2d Double-ended Stud Bolt

DIN 835 b1=2d Double-ended Stud Bolt, also known as stud screws or studs, have threads on both ends, and the middle thread part can be thick or thin. The main feature of this bolt is that the length (bm) of its screw-in end is equal to twice its diameter (d), that is, bm=2d. This kind of stud bolts are widely used in various mechanical equipment that require fixed connections, such as mining machinery, bridges, automobiles, motorcycles, boiler steel structures, hanging towers, long-span steel structures and large buildings, etc. It is especially suitable for places where the thickness of the connecting body is large, the length of the bolt is long, thick plate connection and it is inconvenient to use hexagonal bolt connection.

Pictures

Product drawing

Product Specification

Some introduction about our company

Application

Jinan Star Company specializes in the production of fastener products. Our bolts, nuts and other products are widely used in machinery, railways, automobiles, construction, electrical, bridges, communications, firefighting and other industries.

Certification

Jinan Star Fastener Co., Ltd. has obtained the 2015 version of ISO9001 quality management system certification through the scientific management of leaders of various departments and the pursuit of high quality for bolts and other fasteners. In addition, the laboratory owned by Star Company has obtained the certification in 2017. It passed the national CNAS certification in 2018, and the company passed the European CE certification in 2018.

Testing Equipment

Jinan Star Fastener Company attaches great importance to product quality and is equipped with complete quality inspection equipment, such as tensile testing machines, torque testers,metallographic microscopes, optical projectors, salt spray test chambers, coating thickness gauges, etc., which are used to test the tensile strength and elongation of fastener products and evaluate the mechanical properties of products. These equipment ensure that every link from raw materials to finished products can be strictly controlled in quality.

Workshop

The workshop of Jinan Star Fastener Co., Ltd. is the core area of the company's production and manufacturing, with advanced production equipment. The reasonable layout of the workshop and the scientific production process ensure the efficient production and high-quality output of fastener products.

Production equipment

In order to meet the needs of different customers, the company has introduced a series of advanced production equipment, such as multi-station cold heading machines, thread rolling equipment, heat treatment equipment, shot blasting machines, sand blasting machines, electroplating lines and other surface treatment equipment, and fully automatic packaging equipment. These equipment not only improve production efficiency, but also ensure the consistency and stability of product quality.

Packing

Service

1. According to the specific needs of customers, we provide customized services for stud bolts of different specifications, lengths, materials, and surface treatments.

2. Provide professional technical consultation and answer customers’ questions on product selection, use, maintenance, etc.

3. On the premise of ensuring product quality, provide fast delivery services to ensure that customers can get the products they need in time.

4. Provide comprehensive after-sales service, including product installation guidance, usage training, question answering, etc., to ensure that customers can use the product smoothly.

FAQ

1. How do you ensure the quality of our products?

Answer: We produce in strict accordance with DIN 835 standards and adopt advanced production processes and equipment to ensure stable and reliable product quality. At the same time, we also conduct strict quality inspections on each batch of products to ensure that the products meet standard requirements.

2. Can you provide customized services?

A: Yes, we provide customized services. You can choose stud bolts of different specifications, lengths, materials and surface treatments according to your needs. We will produce according to your specific needs to ensure that the product meets your requirements.

3. Can the delivery time be guaranteed?

Answer: We will develop a reasonable production plan based on your order volume and delivery requirements to ensure on-time delivery. At the same time, we will work closely with logistics companies to ensure that products arrive safely and on time during transportation.

4. How to choose suitable bolts?

Answer: There are many factors to consider when choosing appropriate bolts, including the material of the connection, thickness, hole diameter, etc. Our technical team can provide professional selection suggestions and technical support based on your specific needs to help you choose the right bolts.