Grooved Metric Round Head Bolts

Grooved Metric Round Head Bolts, which is characterized by its unique head and neck design.The head of the bolt is round, which provides good force distribution and makes the connection more firm and reliable.The neck shape of the bolt is oval, which provides a suitable connection space, facilitates installation and removal in narrow spaces, and improves work efficiency.The material of round head oval neck bolts is usually metal. Round head oval neck bolts are often used to connect various mechanical parts, such as machine tools, automobiles, ships, etc. Its unique shape design can provide better force effect and make the connection more firm and reliable.

Pictures

Product drawing

Product Specification

Some introduction about our company

Application

Our products are widely used in mechanical, electrical, automotive, building construction, railways, bridges, steamships, fire protection and communication system, etc.

Workshop

Certification

Through scientific management, Jinan Star Fastener Co., Ltd. has obtained the 2015 version of ISO9001 quality management system certification. In 2017, the laboratory passed the national CNAS certification. In 2018, the company passed the European CE certification.

Testing Equipment

Our company has a specialized laboratory with digital hardness testers, microscopes, universal testing machines, axial force meters, hydrogen embrittlement detection devices, magnetic particle flaw detectors, metallographic analyzers, carbon and sulfur analyzers and salt spray testing machines, etc. Experimental testing equipment is used to conduct comprehensive testing of the chemical composition of raw materials, product hardness, mechanical properties, coating thickness and corrosion resistance to ensure that all products meet standard requirements and satisfy customers.

Production equipment

Our company has more than 300 production equipment.The product production process includes: Annealing, shot blasting, cold heading, thread rolling, heat treatment, galvanizing, finished product testing, packaging, etc. are all completed in the company.

Packing

Service

1. Product consultation and selection service:

Provide a detailed round head oval neck bolt product catalog and specification parameters to help customers understand the performance and application range of the product. Provide professional bolt selection suggestions based on the customer's specific needs and application scenarios to ensure that the selected product can meet the actual needs. 

2. Customized production service:

If the customer's needs are special, the manufacturer can provide customized production services and produce according to the specifications and requirements provided by the customer. Provide personalized design services, such as changing the head shape and neck size of the bolt to meet the special needs of customers. 

3. Sample provision and testing service:

Provide samples for customers to try and evaluate to ensure that the product meets the customer's expectations and requirements. Assist customers in product performance testing, including strength testing, corrosion resistance testing, etc., to ensure product quality. 

4. Delivery and logistics services:

Provide flexible delivery methods, such as express, land transportation, sea transportation, etc., to meet the different logistics needs of customers. Provide packaging and labeling services to ensure that the product is safe and intact during transportation. 

5. Installation guidance and technical support:

Provide bolt installation guides and step-by-step instructions to ensure that customers can correctly install and use bolts. Provide technical support and after-sales service to answer questions and doubts encountered by customers during use.