High Quality 304 Stainless Steel Screw Nut Outer Hexagon Bolt SetOuter hexagonal screw

Products Descripition

.Hot-dip galvanized outer hexagonal screw ‌ is a common metal fastener, widely used in construction, machinery, electronic products and other fields. Its main features include excellent rust resistance, long life and ease of installation and disassembly.

Definition and useHot-dip galvanized outer hexagonal screws are mainly composed of head, rod body and thread parts. The head is usually hexagonal, easy to tighten and loosen; The rod body part is hot-dip galvanized to increase its anti-rust ability and prolong its service life; The threaded part is the key part of the nut fit ‌1. This screw is used to fix steel frame, wood and other materials in construction to ensure the safety and stability of the building; Used to fix various parts in machinery, such as gears, bearings, etc., to ensure the normal operation of the machine; Used in electronic products for fixing circuit boards, connectors and other components to ensure the stability and safety of electronic products ‌1.

Processing technology and performance characteristicsThe processing technology of hot-dip galvanized outer hexagonal screws includes dipping the screws into molten zinc solution, and coating the surface of the screws with a good adhesion zinc alloy coating through the reaction between iron and zinc. This process has low cost, and the coating thickness is generally above 35μm, or even up to 100μm, with good coverage ability and atmospheric corrosion resistance ‌23. The protective film of zinc layer (such as ZnO, Zn(OH)2 and basic zinc carbonate) slows down the corrosion of zinc to a certain extent. When the zinc layer is seriously damaged, zinc exerts electrochemical protection on the matrix, thus protecting the matrix metal ‌3.

Specifications and standardsThere are various specifications of hot-dip galvanized outer hexagonal screws, common ones are M8, M12, M16, M20 and so on. According to the head shape, hot-dip galvanized bolts are divided into hexagonal head type, round head type, square head type and countersunk head type, of which the hexagonal head type is the most commonly used ‌2. In addition, hot-dip galvanized screws can also be customized according to user requirements, with good quality, stable structure, easy installation characteristics ‌2.

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Company business: hardware machinery, automation equipment precision fittings, photovoltaic brackets, clamps, blocks, rail connectors, bases, triangular connectors and other photovoltaic fittings, fasteners, electrical equipment, traffic facilities accessories, hardware products, construction fittings, industrial and mining fittings, railroad fittings, seismic braces, metal products, steel fittings, machinery accessories, such as manufacturing and sales. Our company has a complete production system, we can batch production, but also to deal with multiple varieties of small quantities of customer requirements. Carefully, carefully, attentively do a good job of each product, always in line with the quality first, customer first, pay attention to service, reform and innovation concept, and strive to factory all fine products! Welcome friends from all walks of life to guide and business negotiations!

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FAQ

Q1：Can you provide samples? Is the sample free?

A1：We can provide samples. Sample is not free. But we can reduce the cost in the next order.

Q2：How does your factory do the quality control?

A2：We have quality inspection department, each process has the corresponding quality control standards, each workshop is equipped with quality inspection personnel.

Q3：Do you have the products in stock?

A3：Yes, Only a little , Our company provides customized products.

Q4：Can you provide OEM / ODM service？

A4：Yes, We can do OEM and ODM.