ISO 4161 Hex Flange Nut Carbon Steel Zinc Plated High Quality

Our factory mainly produces various types of fasteners, with normal delivery time of 20-25 days and urgent delivery time of 7-15 days. It is 35 kilometers away from Ningbo Port and very convenient for export. Spot goods can be delivered to the warehouse on the same day!

PARAMETERS
Item	Flange self-locking nut
Spec	M2-M10
Material	Stainless Steel, carbon steel,copper
Grade	4.8, 8.8, 10.9, 12.9
Standard	GB, DIN, UNS,JIS
Surface Finish	Natural, Black, White-plated zinc, Color zinc, Nickel, Dacromet, Polished, Zinc-nickel alloy, Hot-dip galvanized, etc.
Delivery Time	7-20Days
Package	cartonboxes or PE bag

Manufactured to exacting ISO 4161 standards, our Hex Flange Nuts deliver superior vibration resistance and secure locking performance. Featuring an integrated, wider serrated flange base, these nuts eliminate the need for separate washers while providing a positive locking action that effectively prevents loosening under dynamic loads. Available in high-tensile Grade 8 and Grade 10 Carbon Steel (zinc plated, black oxide, or hot-dip galvanized finishes) and corrosion-resistant A2/A4 Stainless Steel options. The hexagon design ensures easy installation with standard tools. Widely used in demanding automotive, machinery, construction, and electrical applications where reliable, maintenance-free bolted joints are critical. Trusted supplier offering consistent quality, bulk packaging, and competitive pricing for global industrial buyers. Contact us for sizes M2 to M24 and custom requirements.

Ningbo Yongbiao Fastener Manufacturing Co., Ltd. is located in Ningbo, the second largest port city in China. The factory is 50 kilometers away from Ningbo Port and can reach the sea freight warehouse in one hour, with very fast logistics. The company was founded in 2012 and after years of hard work and development, it has become a factory covering an area of over 2000 square meters with a registered capital of 6.8 million yuan. So far, the company has two holding subsidiaries and has gradually developed into a medium-sized fastener manufacturing enterprise integrating research and development, production, and sales. Currently, the factory has more than 50 employees and complete production and testing equipment, including more than 50 production equipment and more than 10 testing equipment. The factory has an annual production capacity of 4000-5000 tons of fasteners and an annual output value of 40-50 million RMB. Our products have a normal delivery time of 20-30 days and a stock time of 1-5 days. Our independent brand "YB" accepts OEM, ODM. Our main products include various fasteners, standard parts, bolts, screws, wood screws, self tapping screws, turning screws, combination screws, nuts, accessories, flat washers, lifting rings, etc. In addition, we also have multiple CNC lathes and milling machines to provide customized fastener services for customers. The company's products are mainly used in the fields of automobiles, machinery, electronic equipment, sheet metal, security, new energy, etc., and have been widely praised by domestic and foreign customers. Welcome new and old customers to inquire.