ASME B18.21.1-11 A-type Flat Washers

 ASME B18.21.1-11 is the standard specification for Type A flat washers. This flat washer is primarily used to provide even pressure distribution between the bolt, screw or nut and the connection and to prevent damage to the surface of the connection during the tightening process. ASME Type B18.21.1-11A flat washers are typically round with a flat surface and a center hole to accommodate the size of the bolt, screw, or nut. ASME B18.21.1-11A flat washers are widely used in various mechanical equipment, building structures, vehicles and other fields to provide good sealing and fixation for connectors.

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.

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.

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.

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.

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. Provide A-type flat washers and flat washers that meet the ASME B18.21.1-11 standard to ensure that the product quality and size meet the standard.

2. Customize A-type flat washers.

3. Technical consultation, selection suggestions and usage guidance for A-type flat washers to help customers choose the most suitable washers for their applications.

4. Provide product return and exchange services, quality assurance and after-sales technical support to ensure that customers get timely help during use.

FAQ

1. Does this A-type flat washer meet the ASME B18.21.1-11 standard?

Yes, the A-type flat washers we provide are strictly manufactured and tested in accordance with the ASME B18.21.1-11 standard to ensure that the products meet the standard requirements.

2. How do I determine which size and material of A-type flat washers I need?

You can determine the size and material of the washer based on your application requirements, connection size and working environment. Our technical support team can provide you with professional advice and selection guidance.

3. What should I do if I encounter problems during use?

If you encounter any problems during use, you can contact our after-sales service team at any time. We will provide you with technical support and solutions in a timely manner to ensure that you can use our products smoothly.

4. Do you provide customized A-type flat washers?

Yes, we provide customized A-type flat washers. If you have special size, material or surface treatment requirements, please contact us and we will customize production according to your needs.