Cold heading Service

American Standard ASME B 18.2.1 Square Head Bolts Manufacturer In China

Ningbo Teng Qi Fasteners is a professional manufacturer of quality American Standard ASME B 18.2.1 Square Head Bolts to provide customers with reliable connection solutions. We have advanced production equipment and a professional technical team, including wire drawing machines, cold heading machines, hot forging machines, automatic thread rolling machines, heat treatment equipment and electroplating production lines. These equipment ensure the efficiency and quality stability of our production process.

We focus on product quality and performance and produce in strict compliance with the requirements of American standard ASME B 18.2.1. Through precision machining and strict quality control, our Square Head Bolts have excellent mechanical properties and stable dimensional accuracy, ensuring their reliable operation in various industrial applications.

In addition, we also focus on the surface treatment of our products, using advanced electroplating technology and anti-corrosion coatings to ensure that our products have good corrosion resistance and beautiful appearance. Our Square Head Bolts are suitable for various application scenarios, including construction, machinery manufacturing, automotive, aerospace and other fields, providing customers with diverse solutions. Whether it is a large-scale engineering project or personal needs, we are committed to providing our customers with high-quality, reliable Square Head Bolts to meet their different needs and application requirements.

American Standard Black Oxidation ASME B 18.2.1 Square Head Bolts
Zinc Plated Steel American Standard ASME B 18.2.1 Square Head Bolts

Specification of American Standard ASME B 18.2.1 Square Head Bolts:

The specification of American Standard ASME B 18.2.1 Square Head Bolts include the following details:

Product nameASME B 18.2.1 Square Head Bolts
Thread Diameter:1/4“- 1-1/2”
Grade:ASTM A307 / A354 / A394
Material:Steel: Q195, Q235,C45,40CR,35CRMO,42CRMO
Stainless Steel: SS304/SS316
Surface TreatmentZinc Plated/Plain/Black Oxidation/HDG/Dacromet
Packaging:Boxes/cartons into wooden pallets

Dimension Chart of American Standard ASME B 18.2.1 Square Head Bolts:

Thread Diameter1/45/163/87/161/25/83/47/811-1/81-1/41-3/81-1/2
ds max0.260.3240.3880.4520.5150.6420.7680.8951.0221.1491.2771.4041.531
ds min0.2370.2980.360.4210.4820.6050.7290.8520.9761.0981.2231.3451.47
s max0.3750.50.5620.6250.750.9381.1251.3121.51.6881.8752.0622.25
s min0.3620.4840.5440.6030.7250.9061.0881.2691.451.6311.8121.9942.175
e max0.530.7070.7950.8841.0611.3261.5911.8562.1212.3862.6522.9173.182
e min0.4980.6650.7470.8280.9951.2441.4941.7421.9912.2392.4892.7382.986
k max0.1880.220.2680.3160.3480.4440.5240.620.6840.780.8760.941.036
k min0.1560.1860.2320.2780.3080.40.4760.5680.6280.720.8120.8720.964
r max0.
r min0.

Application of American Standard ASME B 18.2.1 Square Head Bolts:

ASME B 18.2.1 Square Head Bolts are widely used across various industries due to their unique design and reliable performance. Some of the primary industries where these bolts find applications include:

Construction and Structural Engineering:Square head bolts are commonly employed in construction projects for fastening structural components, such as beams, columns, and trusses. Their robust design provides strong and secure connections, making them suitable for use in building frameworks, bridges, and other infrastructure projects.
Machinery and Equipment Manufacturing:In the manufacturing industry, square head bolts are used for assembling machinery and equipment. They are often utilized in the construction of industrial machinery, conveyor systems, agricultural equipment, and other mechanical systems where robust fastening is required to withstand operational loads and vibrations.
Marine and Offshore:In the marine and offshore industries, square head bolts are utilized for securing structural components, equipment, and machinery in marine vessels, offshore platforms, and maritime structures. Their corrosion-resistant properties make them suitable for use in harsh marine environments where exposure to saltwater and moisture is prevalent.
Energy and Utilities:Square head bolts are employed in energy and utility infrastructure projects, including power plants, oil refineries, and utility transmission systems. They are used for fastening components such as flanges, valves, and piping systems, providing reliable