Stainless Steel Pan Head Machine Screws

This type of screws are manufactured using a cold heading process. It complies with strength grade standards such as A2-70. Its minimum tensile strength is 700 MPa. This ensures that the threads are less likely to slip or deform under stress.

For example, an M5 screw can withstand a static tensile force of approximately 1,400 kilograms. This strength can meet the fastening needs of most mechanical structures. It provides basic guarantee for the safe operation of equipment.

The pan head design combines the characteristics of stainless steel to maintain stable clamping force. In vibration tests, its axial force retention rate is 15%-20% higher than that of ordinary galvanized screws.

This means the connection is less likely to loosen in a vibrating environment. It is especially suitable for mechanical equipment that requires long-term stability. This reduces maintenance requirements and safety hazards.

Austenitic stainless steel maintains stable performance from -200°C to +400°C. Taking 304 stainless steel as an example, the impact toughness is still higher than 50J at -100°C.

At a high temperature of 300°C, its tensile strength only decreases by about 15%. Therefore, the same screw can be used in both freezing and baking equipment. This simplifies procurement and warehousing management.

The surface friction coefficient of stainless steel screws is stable between 0.14-0.18. Its torque coefficient fluctuation can be controlled within ±0.02. In automated assembly, this improves torque accuracy to ±8%.

The precision control is about 30% higher than that of ordinary screws. This is critical for industries such as automotive manufacturing. It ensures more consistent preload and assembly reliability.

• Its surface passivation film can effectively resist oxidation. In the standard salt spray test, high-quality products can last for more than 480 hours without red

rust, making them suitable for humid environments.

• It has high fatigue strength and can withstand more than tens of millions of cyclic loads in a vibration environment, significantly reducing the risk of accidental breakage.

• In the vibration test, the axial force retention rate is 15%-20% higher than that of ordinary screws, making the connection more durable and stable, and reducing maintenance.

• The surface friction coefficient is stable and the torque coefficient has small fluctuations. It is conducive to achieving precise assembly and improving product consistency and reliability.