Stainless Steel Hexagon Socket Head Bolts and Nuts M3 M4 M5 A2-70 A Grade

This combination screw set offers a straightforward fastening solution for M3, M4 and M5 threaded connections. Made from stainless steel A2-70 and classified as A grade under German standard, it suits general assembly, repair and DIY tasks where a corrosion-resistant fastener is preferable to untreated steel. The pan head with hexagon socket drive allows tightening with a standard Allen key, making it a practical choice for furniture, machinery and light engineering applications. The set includes one combination screw with its matching nut, so you have both parts ready for installation.

Features and Construction

The product is built around a stainless steel A2-70 bolt and nut combination. The pan head design keeps a relatively low profile on the surface, while the hexagon socket accepts an Allen key for secure tightening. The thread specifications cover M3, M4 and M5 sizes, giving flexibility across different fixing requirements.

Material and Build

The bolt and nut are made from stainless steel A2-70. This grade is commonly used for fasteners that may encounter moisture or occasional outdoor conditions. The material is untreated, meaning no additional coating is applied, so the natural stainless steel surface is visible. The A grade classification and German standard indicate that the product meets defined dimensional and quality criteria for this type of fastener.

Size and Practical Fit

Thread specifications include M3, M4 and M5, covering a range of small to medium fixing tasks. The pan head sits relatively flush with the material being fastened, which helps maintain a neat appearance. The hexagon socket drive is designed for use with an Allen key, allowing controlled tightening without needing a separate screwdriver. No other dimensions, lengths or load ratings are provided in the source information.

Uses and Placement

This combination screw is suited to general fastening applications where a stainless steel bolt and nut are required. It can be used in furniture assembly, machinery panels, DIY projects and equipment repairs. The M3, M4 and M5 sizes make it adaptable to different hole diameters and material thicknesses, provided the correct size is selected.

Event or Professional Use

In professional or workshop settings, the A2-70 stainless steel construction offers a practical alternative to untreated steel fasteners when mild corrosion resistance is beneficial. The German standard and A grade specification support use in applications where dimensional consistency matters. The hexagon socket head allows the use of torque tools for controlled tightening, which is useful when assembling components that require a secure but not over-tightened joint.

Everyday Home Use

For home repairs and DIY tasks, this combination screw provides a convenient way to secure parts without needing to find separate bolts and nuts. The pan head gives a finished look, and the hexagon socket drive is easy to use with a standard Allen key. Common uses include fixing furniture, attaching brackets, repairing appliances and assembling flat-pack items where M3, M4 or M5 threads are specified.

Benefits and Buying Value

The main practical benefit is the combination of bolt and nut in one set, which reduces the time spent sourcing matching components. The stainless steel A2-70 material is suitable for environments where untreated steel might corrode, though specific corrosion-resistance figures are not stated. The untreated surface keeps the product simple and free from additional coatings that could wear over time.

Reuse and Low Maintenance

Stainless steel fasteners can often be reused if they are not damaged during removal. The A2-70 grade is commonly chosen for its resistance to rust in indoor and occasional outdoor conditions, although regular cleaning and dry storage are sensible to maintain appearance. No specific maintenance schedule or lifespan is provided in the source data, so care should be based on the material's general properties.

Why Choose This Product

This combination screw set is a practical choice for anyone needing M3, M4 or M5 stainless steel fasteners with a pan head and hexagon socket drive. The A2-70 material, A grade classification and German standard give clear reference points for the product's construction. The set includes one bolt and matching nut, ready for immediate use in assembly, repair or DIY projects. No additional quantities, load ratings or certifications are claimed beyond what is stated in the source information.