‌Round Head Stainless Steel Step Screws

Material: 304 stainless steel

Thread Type: Stepped thread

Head Type: Round head

Manufacturer: Zeyao

Surface Treatment: Bright, brushed, or nickel-plated (customizable)

Length Range: Customizable according to customer requirements

Corrosion Resistance: Complies with ISO 9001 standards and RoHS environmental requirements

 

Round Head Stainless Steel Step Screws are specially designed fasteners widely used in various applications requiring high strength and stability.

 

These screws are characterized by their round head and stepped thread structure, providing stronger grip and support, ensuring greater stability and safety during installation.

Thread Diameter (d)	M2	M2.2	M2.6	M3	M3.5	M4	M4.2	M5	M6	M8
Head Diameter (dk)	3.4	3.8	4.2	5.3	6.4	6.9	7.8	9.0	11.9	13
Head Thickness (k)	1.3	1.5	1.7	1.9	2.1	2.3	2.4	2.8	4.0	5.0

 

 

Round Head Design:

The round head design provides a wider contact surface for the screw, effectively distributing pressure and reducing damage to the workpiece from the screw head. Furthermore, the round head structure makes it easier to install and remove, especially when using a wrench, preventing excessive pressure on other components.

 

Stepped Thread:

The stepped thread design provides multiple levels of gripping force, meaning it can provide a secure hold in a wider range of applications, especially suitable for environments requiring high vibration or shock resistance.

 

Stainless Steel Material:

The stainless steel material gives the screw excellent corrosion and oxidation resistance. It can withstand moisture, salt spray, and chemical corrosion, making it particularly suitable for marine, chemical, food, and medical environments requiring corrosion resistance.

 

High Temperature Resistance:

Made of stainless steel, the screw can withstand high-temperature environments, making it suitable for industrial applications with temperature fluctuations, such as engine parts and boiler equipment.

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1. Material Customization

304 Stainless Steel: Suitable for most common environments, possessing good corrosion resistance, widely used in food, medical, and general industrial environments.

 

316 Stainless Steel: Suitable for more demanding environments, such as marine and chemical industries, offering stronger corrosion resistance, especially excellent performance in environments exposed to chlorides and salt spray.

 

Carbon Steel: Suitable for general industrial applications, possessing good strength, but its corrosion resistance is not as good as stainless steel; suitable for dry environments and environments without corrosive media.

 

Other Materials: We can also provide customization of other materials according to customer specific needs, including aluminum alloys, titanium alloys, etc., to meet the needs of different fields.

 

2. Specifications and Size Customization

Standard Sizes: We provide standard sizes from M3 to M12 to accommodate common industrial applications.

 

Non-Standard Sizes: According to customer requirements, we can provide non-standard sizes from M1 to M20 to ensure compliance with different working environments and load requirements.

 

Custom Length: Screw lengths can be customized to meet specific customer needs, ensuring compatibility with threaded holes of varying depths.

 

Thread Type: We offer different thread types, including coarse, fine, and trapezoidal threads, tailored to individual customer requirements.

 

3. Custom Surface Treatment

Zinc Plating: White or yellow zinc plating is available to enhance the screw's corrosion resistance, suitable for various mildly corrosive environments.

 

Brushed/Bright Finish: Provides a refined appearance, suitable for applications requiring higher aesthetics.

 

Nickel Plating: Nickel plating is available to increase corrosion resistance and aesthetics, suitable for applications with higher durability requirements.

 

Spraying/Coating: Spraying or coating treatments are also available upon request to improve the screw's protection and durability.

 

Passivation: Passivation layers provide additional corrosion protection, suitable for harsh environments.

 

4. Custom Strength

Standard Strength: Our standard strength is 8.8, suitable for most applications.

 

High Strength: High-strength screws of grades 10.9 and 12.9 are available to meet the needs of high-load, high-pressure applications.

 

Corrosion Resistance: Combining materials and processing techniques, we provide customers with high-strength, corrosion-resistant screws suitable for high-temperature and humid environments.

 

5. Customized Packaging

Standard Packaging: Standard cartons or plastic bags are available according to customer requirements.

 

Personalized Packaging: We offer label printing services and can customize packaging according to customer brands to ensure effective brand promotion.

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