Grade 10.9 Carbon Steel Yellow Zinc Plated Butterfly Wing Bolt And Nut DIN314

Bolts, also known as screws or fasteners, are essential tools that utilize the principles of inclined plane circular rotation and friction to tighten parts. They are indispensable in both daily life and industrial production, earning the nickname "industrial meters" due to their widespread use.

• Automotive: Used in high-strength applications like engines, heavy-duty machinery, and bridge construction for their superior support area and anti-loosening properties.
• Mechanical: Essential in mechanical, electronic, automotive, and construction fields for connecting various parts, circuit boards, engines, transmissions, and building structures.
• Energy: Connects power generation equipment and transmission lines in the energy industry.
• Construction: Used in building structures, shipbuilding, and petrochemical industries to ensure safety and stability.
• Electronics: Found in digital products, cameras, glasses, clocks, and other precision equipment.

• Aluminum: Excellent thermal and electrical conductivity but requires careful processing due to softness.
• Titanium: Requires EDM machining with deionized water to control heat during processing.
• Steel: Very strong material that generates significant heat during machining.
• Brass: High tensile strength and easy to machine, but requires slow cutting speeds.

China's bolt manufacturing industry has developed rapidly, producing both standard and specialized bolts. While low-grade products dominate the market, high-grade, high-precision, high-strength bolts (from 4.8 to 12.9 grades) are approaching world-class standards, though some premium products still require import.