M10 Square Weld Nut

Material and performance grade

The carbon content of the M10 Square Weld Nut made of low-carbon steel is controlled below 0.25%, ensuring stable weld nuggets and less spatter during resistance spot welding. It is the optimal choice for welding performance.

High-strength (8.8/10.9 grade) products are suitable for heavy-duty applications that need to withstand large tensile forces or impact loads.

The stainless steel material offers excellent corrosion resistance. Among them, A4 (316) contains molybdenum and is particularly suitable for seawater and chloride ion corrosion environments.

（1）Low-carbon steel

The 4.8/6.8 grade is the most common, offering the best welding compatibility. With a carbon content of ≤0.25%, it is commonly used in automotive body panels, household appliances, general sheet metal, and non-load-bearing connections.

（2）Medium carbon steel / alloy steel

The performance grade is 8.8 / 10.9. During welding, it is necessary to control the welding parameters. It is mainly used in automotive chassis, heavy machinery, truck structural components, and heavy-duty connections.

（3）Stainless steel 304 (A2)

Grade A2-70, with excellent welding performance. It should be welded onto stainless steel or a clean surface. For food equipment, medical devices, general outdoor applications, and moderate corrosive environments, Stainless steel 304 materials for M10 Square Weld Nut are more suitable.

（4）Stainless steel 316 (A4)

Grade A4-70 has excellent welding performance and can perform well in marine engineering, chemical equipment, coastal facilities, and harsh corrosive environments.

Application

The M10 Square Weld Nut is widely used in medium and heavy-duty metal structures that require strong and anti-loosening threaded connections due to its moderate size (thread diameter of 10mm), high load-bearing capacity, and the permanent fixation after welding. The main application areas of this product are as follows:

（1）Automobile manufacturing

Chassis suspension: Fixed control arms, subframe, stabilizer bars and other load-bearing components, M10 specification can withstand large dynamic loads.

Body structure: Door hinges, engine hood latches, seat slide rail fixation points, welded and never loosens.

（2）Agricultural machinery

Sowing machine / Fertilizer applicator: Seed box bracket, furrow opener connection, hub guard

Agricultural trailer: Cab floor, side panels, towing frame fixation

（3）Heavy machinery and construction equipment

The structural components of equipment such as excavators, loaders, and bulldozers are mostly made of thick plates and welded together. M10 Square Weld Nut are used at connection points with medium loads.

Cab: Interior panels, control panel, seat base, air conditioning piping fixation

Engine compartment: Heat insulation cover, intake pipe bracket, wiring harness fixing clips

（4）Industrial equipment and general machinery

Packaging machinery: Enclosure, safety door, sensor bracket, electrical junction box

Machine tools: protective cover, electrical cabinet, cooling fluid pipeline support, operation panel