M3 Shoulder Spring Screws 34mm Zinc Plated for Automation

Product Specification

M3 Shoulder Spring Screws - Shoulder Head - Phillips Drive - Pre-assembled Spring - Zinc Plated - for Floating Panels

M3 shoulder head spring screws with long shoulder & pre-assembled spring. Carbon steel, zinc plating. Total length 34mm, thread M3x6mm. Ideal for electronics, printers, & mechanisms requiring alignment. Custom options.

Our **M3 Shoulder Head Spring Screws** are specialized fasteners designed for applications requiring precise **alignment, floating movement, and vibration resistance**. Unlike standard screws, they feature a **smooth, precision-ground shoulder** beneath the head and a **pre-assembled pressure spring**. This unique design allows the screw to act as a pivot or guide, while the spring maintains constant pressure, preventing loosening. Made from **carbon steel** and finished with **zinc plating**, they are a cost-effective solution for automation, electronics, and machinery.

Primary Uses & Applications:

    *   **Printers & Scanners:** Guiding and securing moving print heads, lids, and paper trays with a floating fit.
    *   **Automation & Robotics:** Pivoting joints, guiding linear actuators, and securing sensors where slight misalignment must be accommodated.
    *   **Electronics Enclosures:** Securing floating panels, hinged doors, and access covers on servers, audio equipment, and instruments.
    *   **Automotive Interiors:** Attaching trim panels, cup holders, and compartments that require a rattle-free, floating movement.
    *   **General Machinery:** Fastening guards, covers, and mechanisms that need to be easily removed and aligned without binding.

How to Use:

    1.  **Preparation:** The spring is pre-assembled. Identify the smooth shoulder and the threaded end.
    2.  **Insertion:** Insert the **smooth shoulder** through the clearance hole in the top component. This hole should be a close fit to the shoulder diameter (~3.0mm) to guide the screw. The thread will protrude through.
    3.  **Alignment:** The shoulder will align the components. The spring will be compressed between the screw head and the top component's surface.
    4.  **Driving:** Using a **PH2 Phillips screwdriver**, drive the **threaded end** into the receiving threaded hole or a nut on the other side.
    5.  **Tightening:** Tighten until the desired clamping force is achieved. The long shoulder allows the top component to "float" or pivot slightly even when the screw is tight. The spring maintains tension. **Do not over-tighten.**

Our advantages: 

1. More than 20 years of screw production experience and non-standard screw custom development experience, provide you with cost-effective screws, and help you solve the fastener supply chain. 
2. Precise production equipment. The company introduces all imported equipment from Taiwan to produce precision screws and hardware accessories for you. Provide free sample testing for compatibility verification.
3. A complete management system, each batch of products that leave the factory undergoes multiple strict monitoring

4. Dedicated account management for seamless collaboration. System- supporting services guarantee you peace of mind.

Support and Services:
1. If you require technical support or have any questions regarding our Spring Screws product, our team of knowledgeable professionals is here to assist you. We provide comprehensive support services for all aspects of our Spring Screws. From selection advice to ensure you have the right type and size for your project, to guidance on proper installation techniques, we’ve got you covered.

2. Our support services include detailed product specifications, material safety data sheets, and step-by-step installation guides. We also offer troubleshooting assistance for any issues that may arise during the use of our Spring Screws. Whether you're a seasoned professional or a DIY enthusiast, we're committed to providing the support you need to ensure your project's success.

3. For maintenance tips and best practices, our experts are on hand with valuable advice to extend the life and maintain the performance of our Spring Screws. We are dedicated to providing exceptional customer support and ensuring that our products meet the highest standards of quality and reliability.

Packing and Shipping:
1. Our Spring Screws are packaged with care to ensure they arrive at your location in perfect condition. Each pack contains a specific number of rivets, securely held within a durable, moisture-resistant plastic bag. This bag is then placed inside a sturdy cardboard box, cushioned with packing materials to prevent anymovement during transit.

2. The boxes are sealed and labeled with product information, including the quantity and size of the rivets, for easy identification. For larger or bulk orders, multiple boxes are placed onto a pallet, shrink-wrapped, and strapped securely to minimize the risk of damage.

3. We ship our Spring Screws using reliable courier services to ensure timely and safe delivery. Tracking information is provided for every shipment, allowing you to monitor the progress of your order until it reaches your doorstep.

Our factory is able to accept customized drawings. To strike a balance between technical details and customer-centric messaging, please let us know if you need to tweak the description to highlight specific certifications or other parameters!