Flange Nut / 法兰螺母产品介绍
Product Overview / 产品概述
English: Flange nut is an integrated fastener combining a standard hex nut and a flat washer flange. The enlarged flange surface effectively disperses fastening pressure, prevents loosening and surface damage, and improves assembly stability. It eliminates the need for an extra washer, saves installation time, and features high bearing capacity, anti-slip and anti-loosening performance. Widely used in automotive parts, mechanical equipment, pipeline facilities, electric power and general industrial assembly.
中文：法兰螺母是由六角螺母与垫片法兰一体化成型的专用紧固件。加宽的法兰盘面可有效分散紧固压力，防止工件打滑、压伤与松动，大幅提升装配稳定性。产品无需额外搭配垫圈，简化安装工序，承载力强、防滑防松性能优异，广泛应用于汽车配件、机械设备、管道设施、电力设备及各类工业装配场景。
Standard Types / 产品标准规格
English: We supply full-range metric and imperial flange nuts to meet global market demands.
中文：我司可供应全系列公制、美制法兰螺母，适配全球客户采购标准。
1. Metric Standard / 公制标准
DIN 6923 (Flange Nut): Standard hexagonal flange nut with integrated flange plate, anti-slip serrated and non-serrated types optional. It is the most popular standard flange fastener, suitable for high-vibration and high-pressure fastening scenarios.
2. Imperial Standard / 美制标准
American standard flange 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 mechanical assembly.
Class 8: Most widely used grade, balanced strength and cost, suitable for most industrial scenarios.
Class 10: High-strength grade, matched with high-tensile bolts, applied in heavy machinery and high-load equipment.
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: Integrated one-piece forming, flat flange surface, uniform stress bearing, precise thread size and excellent anti-vibration performance. Serrated flange design provides stronger anti-slip effect. All products comply with DIN and international standards with stable quality. Customized specifications and special surface treatments are available.
中文：一体成型工艺、法兰盘面平整、受力均匀、螺纹尺寸精准、抗震紧固性能优异。带齿法兰具备更强防滑防松效果，有效杜绝装配松动问题。全系产品符合DIN及国际标准，品质稳定可靠，可支持非标规格定制与特殊表面处理定制。