Glavanized Hex Nut

Specifications for High Quality Carbon Steel Zinc plated Hex Nut for DIN934

The DIN 934 nut is a hexagonal - shaped nut standardized by the German Industrial Standard (DIN). It is widely used and typically paired with bolts, flat washers, and spring washers.

This nut is available in various materials. Common ones include carbon steel, which can be further divided into types like C10 or C15 carbon steel for general - purpose applications in construction and machinery manufacturing, and 8.8 - grade heat - treated carbon steel suitable for environments with high loads and vibrations. Stainless steel, usually A2 - 70 (equivalent to 304 stainless steel), offers strong corrosion - resistance and is often applied in chemical and marine engineering. Additionally, there is the aluminum - alloy option, such as ALMg4.5Mn or ALMg5, which is lightweight and corrosion - resistant but has relatively lower strength, making it ideal for scenarios where weight reduction or corrosion resistance is required.

The surface treatments of DIN 934 nuts vary. Zinc - plating provides strong rust - prevention and is suitable for general outdoor environments. Blackening gives the nut a black appearance and some rust - prevention ability, appropriate for indoor use. Dacromet coating is hydrogen - embrittlement - free and highly corrosion - resistant, used for high - strength fasteners. Hot - dip galvanizing features a thick coating and excellent corrosion resistance, making it suitable for harsh outdoor conditions.

In terms of size specifications, it covers a range from M3 to M64 (metric system). Different sizes have corresponding parameters for height, thread diameter, across - flats width, and pitch. For example, an M3 nut has a height of 2.4mm, a thread diameter of 5.5mm, an across - flats width of 6.4mm, and a pitch of 0.5mm.

The original standard was DIN 934 - 1987 for hexagon nuts with metric coarse and fine threads, product grades A and B. Currently, it has been replaced by DIN EN ISO 4032 - 2013.

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