Steel Metric Round Head Bolts
Property Class:4.6,4.8,5.6,5.8,8.8,10.9,12.9,
A2-70, A4-70,A4-80
Finish:Zinc Plating(Yellow Zinc, Zinc Blue, Rinse Color), Black, Phosphate & Oil, Zinc Phosphate, Hot-dip Galvanized(HDG),Dacromet, Geomet
Material:Steel
Export country: USA, Japan, Australia, Europe and so on
Support customer customization
Steel metric round head bolts are characterized by their unique head and neck design. The round head of the bolt provides good force distribution, making the connection more secure and reliable. The neck of the bolt is oval, which provides a suitable connection space, facilitates installation and removal in narrow spaces, and improves work efficiency. Round head oval neck bolts are usually made of 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, making the connection more secure and reliable.
Pictures
Product drawing
Product Specification
Size | M10×57 | M10×63 | M10×70 | M12×76 | M20×115 |
D1 | M10×1.5-6g | M10×1.5-6g | M10×1.5-6g | M12×1.75-6g | M20×2.5-6g |
A | 58.5[2.303] | 64.5[2.539] | 71.5[2.815] | 77.7[3.059] | 117[4.606] |
BMin | 30[1.2] | 32[1.26] | 40[1.6] | 70[2.8] | |
C | 13.89[0.547] | 18.26[0.719] | 27.76[1.093] | ||
D2 | 19.0[0.748] 17.7[0.697] | 24.3[0.957] | 39.6[1.559] | ||
E | 5.6[0.220] 4.4[0.173] | 7.8[0.307] | 10.8[0.425] | ||
F | 6.0[0.236] 4.0[0.157] | 9.5[0.374] | 14.0[0.551] | ||
R1 | 10.5[0.413] | 13.3[0.524] | 20.7[0.815] | ||
R2Max | 0.50[0.02] | 0.8[0.031] | 1.2[0.047] | ||
DS | 8.93[0.352] | 10.75[0.423] | 18.25[0.719] | ||
V | 9.96[0.392] 9.17[0.361] | 12.7[0.500] | 19.05[0.750] | ||
H | 4.0[0.16] | 5.0[0.2] | |||
∮ | 6.0[0.24] | 9.5[0.37] | 15.0[0.59] |
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.
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.
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.
Packing
Service
1. Steel Metric Round Head Bolts consultation and selection service:
Provide detailed product catalog and specifications of Steel Metric round head bolts to help customers understand the performance and application scope of the product. According to the specific needs and application scenarios of customers, we provide professional bolt selection suggestions to ensure that the selected products can meet the actual needs.
2. Customized Steel Metric Round Head Bolts services:
If the customer has special needs, the manufacturer can provide customized production services and produce according to the specifications provided by the customer. Provide personalized design services, such as changing bolt head shape, neck size, etc., to meet customers' special needs.
3. Steel Metric Round Head Bolts Sample provision and testing services:
Provide samples for customers to try and evaluate to ensure that the products meet customer expectations and requirements. Assist customers to conduct 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 delivery, land transportation, sea transportation, etc., to meet the different logistics needs of customers. Provide packaging and labeling services to ensure that products are safe and intact during transportation.
5. Installation guidance and technical support:
Provide Steel Metric Round Head Bolts installation guides and step-by-step instructions to ensure customers can install and use bolts correctly. Provide technical support and after-sales service to answer customers' questions and concerns during use.
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