Plastic Wing Nut Mechanical and Electrical Equipment Accessories Photovoltaic Bracket Accessories

• Customization: Available
• Material: Carbon Steel
• Type: Round Head
• Model NO.: 1-1
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN
• Grade: 4.8
• Surface Treatment: Galvanizing
• Applicable Industries: Construction Industry, Solar Power Generation
• Whether to Support Customization: Support
• After-Sales: Three Months
• Transport Package: Container Loading
• Specification: 1-30
• Trademark: Huilin
• Origin: Handan, Hebei
• HS Code: 0101101010
• Production Capacity: 50000

Product Description

Plastic Wing Nut is a tool free fastener manufactured through injection molding process using engineering plastics as the substrate. Its core design logic is to use wing shaped handles to achieve manual tightening/disassembly, while adapting to light load, non-metallic contact, and rapid maintenance scenarios through the lightweight, insulation, and corrosion resistance of plastic. The following analysis is conducted from six dimensions: structure, performance, application, selection, advantages and disadvantages, and trends:

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1. Core structure

Wing shaped handle:

• Shape: Double wing symmetrical design (similar to butterfly wings), single wing length 10-25mm, thickness 2-4mm, providing torque lever effect (manual torque can reach 0.5-1.5N · m).

Surface treatment: Roll patterns/anti slip protrusions to prevent slipping of hands.

• Threaded body:

Thread type: Standard metric/imperial (such as M6, 1/4-20 UNC), precision 6g level (universal level).

Thread length: 8-30mm (matched according to the application scenario).

• Neck transition:

• Diameter: Usually 0.5-1mm smaller than the larger diameter of the thread to prevent interference between the handle and the substrate.

• Strength: Thickened neck design (wall thickness ≥ 1.5mm) to avoid breakage when tightened.

2. Materials and Craftsmanship

• Substrate selection:

PA66+GF30%: High strength (tensile strength ≥ 80MPa), temperature resistance (-40 ºC~120 ºC), suitable for outdoor equipment.

POM (Saigang): self-lubricating (friction coefficient 0.15-0.25), low water absorption (0.2%), suitable for precision instruments.

PP (polypropylene): Low cost (unit price about 40% lower than PA66), food grade certified, used for household appliances.

• Molding process:

Injection molding: one-time molding, tolerance control ± 0.1mm, no seam between thread and handle.

• Secondary processing: Some high-end models have added ultrasonic welding metal inserts (such as stainless steel threaded sleeves) to enhance wear resistance.

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