M10 M16 Carbon Steel washer SS 304 SS 316 A2 A4-80 Square washer Customized size

Washers are available in various types including:

• Flat washers (C grade, A grade, chamfered type)
• Large washers (A and C grade)
• Oversized washers (C grade)
• High-strength washers for structural steel
• Spherical washers, taper washers
• Square bevel washers for I-beams and channel steel
• Standard, light, and heavy spring washers
• Various lock washers (internal/external tooth, single/double ear)

Flat washers are typically used in connections involving soft materials to increase contact area, disperse pressure, and prevent material damage. Spring washers (made from 65Mn spring steel, HRC44-51 hardness) provide additional friction between nut and bolt after tightening.

Carbon steel advantages:

• High strength: Excellent for construction, automotive, and aerospace applications
• Good wear resistance: Ideal for tools, machine parts, and industrial equipment
• Strong plasticity: Easily formed through cold/hot working and forging
• Cost-effective: Competitive pricing for large-scale industrial use

Limitations:

• Susceptible to corrosion (requires protective coatings)
• Lower shock resistance compared to high-strength alloys

Zinc plating provides rust-resistant silver-white finish (can be passivated to white, colored, or army green).