Nickel Plated Pan Head Double Spring Combination Screw With Integrated Spring Washer

1. Product Introduction

Our pan head double spring combination screws are made of high-quality carbon steel with full nickel plating for rust and oxidation resistance. The integrated one-piece structure combines pan head screw, double coil spring and flat washer into a single fastener, which greatly simplifies on-site assembly work and saves manual gasket installation time.

The double-layer spring between head and thread provides continuous elastic preload during fastening, effectively offsetting vibration, thermal expansion and contraction to prevent screw loosening. All screws are produced by automatic cold heading machine, with precise rolling thread, no burrs and stable dimensional tolerance. We support customized screw length, thread diameter and spring elasticity according to different assembly load requirements.

2. Core Product Advantages

- Carbon steel nickel-plated material, high surface hardness, wear-resistant and anti-rust

- Integrated double spring + flat washer design, one-step installation, high assembly efficiency

- Double coil spring elastic buffer, shock absorption and anti-loosening, stable long-term connection

- Precision cold forging and thread rolling, smooth thread without slipping, good interchangeability

- Pan head design, compatible with standard cross screwdriver, convenient installation

- Customizable size, spring thickness and plating finish for different industrial assembly needs

- Full inspection before delivery to ensure consistent spring elasticity and screw dimensional accuracy

3. Application Scenarios

This double spring combination screw is widely used in electronic and mechanical assembly industries:

Server chassis, communication equipment housings, industrial control panels, sheet metal enclosures, power distribution cabinets, display racks, precision electrical equipment and other assembly scenes requiring shockproof, buffer and anti-loosening fixed connection.

4. Factory Strength

Fanhang Hardware is a professional combination fastener manufacturer with 20 years of cold forging production experience. We are equipped with automatic cold heading machines, spring assembly equipment, plating production lines and complete precision testing instruments.

We provide one-stop customized service from drawing confirmation, sample trial production to mass delivery. All products meet international hardware industry standards. Our combination screws are exported to Europe, America, Southeast Asia and other overseas markets, providing efficient fastening solutions for global electronic equipment manufacturers.