Bolt Square Neck

Bolt Square Neck ISO 8677 are fasteners with specific design and performance requirements. The head of ISO 8677 Bolt Square Neck is made into a hemispherical shape, which makes the bolt head smoother and less likely to hook on other objects. A square neck is made under the head to embed in the groove of the connector, thereby reducing the protruding height of the bolt on the surface of the connector. ISO 8677 Bolt Square Neck are mainly used in situations where hexagonal bolts are not suitable for connectors due to structural limitations, or where the exposed parts of the bolts are required to be smoother. Commonly found in the feet and wall panels of agricultural machinery, it is also widely used in wooden structures such as trucks, barges, and ironwood looms. According to the size of the head, it is divided into ordinary and large semi-circular heads. ISO 8677 bolt square neck with large cup head has a larger head diameter but slightly thinner thickness, making it suitable for situations where a larger bearing surface is required. This kind of bolt is a rough bolt, but has high mechanical properties and good durability.

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.

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.

Exhibition

Jinan Star actively participates in various exhibitions in the fastener industry. On the one hand, it expands its customer base, and on the other hand, it keeps up with the development trend of the fastener industry, understands customer needs, and then makes improvements in quality, service, etc.

Service

1.Bolt Square Neck Professional Manufacturer: Our Bolt Square Neck are all designed and manufactured according to the buyer's specifications and performance.

2.Quality Assurance on Bolt Square Neck: Durability testing and key technology design to improve the service life of Bolt Square Neck.

3.Cost Effectiveness: Bolt Square Neck has a wide selection range and is supplied by professional factories with competitive prices.

4.Customize Ideal Bolt Square Neck: Customized service is provided according to the samples and drawings provided. 60 years of experience provides perfect fastening solutions to solve your problems.

FAQ

1. How can we start cooperation?

A: You can contact us via our official website, phone, email or direct visit. We will provide detailed product introduction and quotation based on your needs. Once both parties reach an agreement, a formal cooperation agreement can be signed and production can begin. We will follow up the order progress throughout the entire process to ensure that the product is delivered on time.

2. Are your Bolts Square Neck certified by the industry?

A: Yes, our Bolts Square Neck have passed a number of industry certifications and standard tests, such as ISO 9001 quality management system certification, CE certification, etc. These certifications certify that our products meet international and industry standards and are of superior quality and performance.