Butterfly Nut /Wing Nut/ 蝶形螺母产品介绍
Product Overview / 产品概述
English: Butterfly nut (wing nut) is a special quick-release fastener with two integrated wing-shaped handles. It allows manual tightening and loosening without any tools, realizing fast assembly and disassembly. Featuring flexible operation, high efficiency and stable clamping performance, it is widely used in equipment requiring frequent disassembly and adjustment, such as instrumentation, electrical equipment, household appliances, molds and light industrial machinery.
中文：蝶形螺母（羊角螺母）是一款自带两翼手柄的快速拆装专用紧固件，无需借助任何工具，可直接手工拧紧、松开，实现快速装配与拆卸。操作灵活、拆装高效、夹紧稳固，广泛适用于需要频繁调节、拆装的设备场景，涵盖仪器仪表、电气设备、家电器械、模具、轻工机械等领域。
Standard Types / 产品标准规格
English: We supply full-range metric and imperial butterfly nuts to meet global market demands.
中文：我司可供应全系列公制、美制蝶形螺母，适配全球客户采购标准。
1. Metric Standard / 公制标准
DIN 315 (Butterfly Nut): Standard stamping and forging type wing nuts, with smooth wing surface, uniform specification and comfortable hand feel. It is the most common standard for quick disassembly fastening, suitable for light and medium load adjustable connection scenarios.
2. Imperial Standard / 美制标准
American standard butterfly nuts in Grade 2, Grade 5, Grade 8, covering all common imperial sizes for North American market applications.
Strength Grades / 强度等级
Metric Grades / 公制等级
Available in Class 6, Class 8, Class 10
Class 6: For general light-duty equipment and conventional manual assembly.
Class 8: Most widely used grade, balanced strength and cost, suitable for most conventional adjustable fastening scenarios.
Class 10: High-strength grade, adopted for medium and heavy-load adjustable equipment connections with high tensile requirements.
Imperial Grades / 美制等级
Available in Grade 2, Grade 5, Grade 8
Covers low, medium and high-strength requirements for American standard mechanical assemblies.
Surface Treatments / 表面处理工艺
We provide multiple anti-corrosion surface treatments to adapt to different environmental and customer requirements:
1. Zinc Plated (Electro-galvanized) 电镀锌：Cost-effective, bright and uniform surface, basic anti-rust performance for indoor and general outdoor use.
2. Zinc-Nickel Plated 镀锌镍：Excellent corrosion resistance, far superior to ordinary zinc plating, suitable for harsh working environments.
3. Geomet Coating 久美特：Non-electrolytic anti-corrosion coating, no hydrogen embrittlement, high weather resistance, meets high-standard automotive and environmental protection requirements.
4. Dacromet Coating 达克罗：Super anti-rust, heat-resistant and corrosion-resistant performance, widely used in engineering machinery, outdoor facilities and marine equipment.
5. Black Zinc Plated 镀黑锌：Also known as black electro-galvanizing, with a uniform black matte surface and beautiful appearance. It has good anti-corrosion and anti-oxidation properties, with higher ornamental value while ensuring basic rust resistance. Widely used in mechanical equipment, automotive parts and precision fastening scenarios with appearance requirements.
6. Nickel Plated 镀镍：Features a smooth, bright and uniform metallic surface with high hardness and good wear resistance. It provides excellent anti-oxidation and anti-corrosion performance, not easy to rust and discolor. Ideal for precision instruments, electronic equipment and high-end mechanical parts with strict appearance and durability requirements.
7. Chrome Plated 镀铬：Boasts ultra-high surface hardness, outstanding wear resistance, scratch resistance and glossiness. The coating is firm and stable with strong corrosion resistance. It is widely applied in high-precision equipment, automobile decoration and mechanical parts requiring high surface finish and abrasion resistance.
Core Advantages / 产品优势
English: Integral forming process, smooth and burr-free wing edges, precise thread tolerance and comfortable manual operation. No tool operation required, fast disassembly and flexible adjustment. All products comply with DIN and international standards with stable quality. Customized specifications and special surface treatments are available.
中文：整体一体成型，两翼边缘光滑无毛刺，螺纹精度高、手感顺滑。无需工具辅助，拆装快捷、调节灵活，适配频繁拆装调试工况。全系产品符合DIN及国际标准，品质稳定，可支持非标规格定制与特殊表面处理定制。