Stainless steel pan head hexagon screws with a half round head shape in various metric thread sizes including M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M16, M18, M20, and M25, supplied individually with a whitewash surface treatment.
Stainless Steel Half Round Head Pan Head Hexagon Screws in Multiple Metric Sizes

These stainless steel pan head hexagon screws provide a durable and corrosion-resistant fastening option for a wide array of assembly and repair tasks. Manufactured from A2-70 grade stainless steel, they are designed to meet applications where resistance to wear is a primary concern. The screws feature a distinctive half round, or semicircular, pan head shape combined with a hexagonal socket drive, allowing for secure installation with common hex keys. A whitewash surface treatment gives the screws a consistent, clean appearance straight from the pack. Available in an extensive range of metric thread sizes—from fine M2.5 threads up to larger M25 options—they offer flexibility for projects requiring specific dimensional specifications. Supplied individually, they enable precise procurement without excess.
Features and Construction

The design and material selection of these screws focus on delivering reliable mechanical performance and practical usability in various settings.
Material and Build
The core material is stainless steel classified as A2-70. This designation indicates a specific grade within the austenitic stainless steel family, known for offering a good combination of corrosion resistance and mechanical strength. The '70' refers to the minimum tensile strength in terms of MPa multiplied by 0.1. This makes the screws suitable for environments where exposure to moisture or mild corrosive elements is expected, while still providing the necessary clamping force and shear strength for secure joints. The stated application focus on wear resistance suggests the material's hardness and surface properties are suited to situations involving friction or abrasion.
Size and Practical Fit
One specific size mentioned is 16mm in length with a 5.7mm head size. This provides a reference point for the screw's proportions. Crucially, the product is offered in a comprehensive selection of other metric thread sizes, including M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M16, M18, M20, and M25. The listed options such as 'M2.5x10' indicate a thread diameter of 2.5mm and a length of 10mm. This wide range ensures users can select the exact diameter and length required to match pre-drilled holes, material thicknesses, and the strength demands of their specific project, from electronics assembly to furniture construction or machinery repair.
Uses and Placement

The combination of material properties and size availability opens up these screws for use in both professional and domestic contexts where reliable fastening is needed.
Event or Professional Use
In trade, workshop, or manufacturing environments, these A2-70 screws are applicable for assembling fixtures, securing components on equipment, or maintenance tasks where their wear resistance and stainless properties are beneficial. The hexagonal drive offers positive torque transmission, which is advantageous for high-torque applications or when using power tools, reducing the risk of cam-out compared to some other drive types. The availability of larger sizes like M16, M20, and M25 makes them suitable for structural or heavy-duty applications in construction, automotive, or industrial settings.
Everyday Home Use
For DIY enthusiasts and homeowners, the smaller metric sizes (M2, M2.5, M3, M4) are ideal for tasks like repairing appliances, assembling flat-pack furniture with metal components, fixing bicycles, or working on hobby projects such as model making or custom electronics. The corrosion resistance means they can be used in damp areas like bathrooms or outdoors on garden furniture without immediate concern for rust stains or failure. The whitewash finish also offers a neutral look that blends with many materials.
Benefits and Buying Value

Choosing these screws brings several practical advantages centred on material suitability, selection flexibility, and straightforward application.
Reuse and Low Maintenance
The stainless steel construction means these screws are less likely to corrode or seize in place over time compared to standard steel screws, potentially allowing for easier disassembly and reuse if needed. Their wear-resistant quality suggests they can withstand repeated assembly and disassembly cycles better than softer fasteners. The whitewash surface does not require additional painting or coating for protection in many indoor and sheltered outdoor applications, reducing post-installation maintenance.
Why Choose This Product
The key decision factors are the confirmed A2-70 stainless steel material, which provides a known standard of performance, and the very wide range of metric thread sizes available. This allows for exact matching to project specifications. The pan head with hexagonal drive is a common and widely supported configuration, ensuring compatibility with standard toolkits. Being sold individually is a practical benefit for users who need a specific number of screws without purchasing a full box, minimising waste and cost for small jobs.

