1.Basic concepts and structural features
Coil nails (also known as coil nails) are industrial fasteners that connect multiple independent nails in parallel in coils by copper-plated wire connections. Their core design is that the connections are at a β angle (0°-90°) to the center line of the nail rod, ensuring both integrity and smoothness during continuous operation of the automatic nailing machine. This structure significantly improves construction efficiency and reduces labor consumption12.

Technical parameters:

Size range: length 25-130mm, diameter 2.1-3.3mm
Nail spacing accuracy: 8±0.2mm (standardized control)
Surface treatment: bright (anti-rust), electroplating (high corrosion resistance), painting (decorative requirements)

2.Type and Specification Parameters
Coil nails are divided into three main types according to function and structure:

Smooth Shank Coil Nails
Smooth surface, suitable for fixing low density materials such as cork, plastics
Ring Shank Coil Nails
Nail body with spiral stripe, enhanced biting force with wood, for furniture manufacturing
Screw Shank Coil nails
Large thread depth for high-strength scenarios such as concrete and hard walls 45
Specification Labeling Rules:

Sample model: 31 x 100 (diameter 3.1mm x length 100mm)
Packing standard: 300-400 pieces per roll, 30 or 40 rolls per box

3、 Application field analysis
Coil nails have become core connectors in multiple industries due to their high efficiency and adaptability

Building decoration: Fixed wooden keel, gypsum board, anchoring of concrete walls (cement steel nail variant) 515
Furniture manufacturing: sofa frame splicing, wooden box packaging, especially suitable for reinforcing structural stability with loop nails 67
Logistics packaging: Large pallet nails (33 × 100mm) reinforced wooden box with compressive strength 414
Automotive industry: Interior fastening requires the use of pneumatic nail guns to achieve assembly line operations
Advantages compared to traditional nails:

Automated nailing efficiency increased by over 50%, reducing labor costs
Reduce construction noise and improve working environment