Pan Head Long Multi-coil Spring Combination Screw

1. Product Overview

Our pan head long multi-coil spring combination screw is an integrated fastener combining pan head screw, retaining washer and extended multi-turn compression spring. The lengthened multi-coil spring delivers powerful buffering, shock absorption and vibration resistance, solving the loosening failure of fasteners on long-term vibrating mechanical equipment.

2. Core Product Advantages

1. Multiple Material Selection

304 stainless steel, 316 stainless steel and high-strength carbon steel are optional. Stainless steel versions have excellent rust-proof and corrosion resistance, suitable for humid and corrosive working environments.

2. Custom Anti-loosening Thread Treatment

Blue nylon patch locking treatment can be added on screw threads. The nylon layer tightly fits the thread after installation, preventing screw loosening caused by vibration, impact and temperature change.

3. Ultra-strong Shock Absorbing Structure

Compared with ordinary single-circle spring screws, the multi-circle long spring has larger elastic stroke, uniform pressure bearing and long service life without elastic fatigue.

4. Flexible Customization Service

All standard metric sizes are in stock for fast delivery. We support non-standard customization including screw length, spring wire diameter, spring outer diameter and total assembly length according to customer drawings and samples.

3. Wide Application Fields

- Server cabinets, communication chassis, electrical control boxes

- New energy charging equipment, battery assembly fixtures

- Precision testing instruments, medical equipment accessories

- Household appliances, automotive interior vibration reduction parts

- Automated machinery, conveyor vibration buffer components

4. Factory Strength

We are a professional fastener manufacturer with 20 years of production experience. We own full sets of cold heading, CNC turning, spring winding and surface treatment production lines.

Every batch of products undergoes strict hardness test, salt spray corrosion test and torsion loosening test before delivery to guarantee stable quality. We accept OEM and ODM customized orders, support small batch sample trial orders and large bulk wholesale orders, providing factory direct competitive prices and on-time delivery for global buyers.