Stainless steel screws, half round head pan head hexagon drive fasteners in A2-70 grade with whitewashed finish for corrosion resistance, available in multiple thread sizes including M2.5 and M3 diameters.
Stainless steel screws, half round head pan head hexagon drive fasteners in A2-70 grade with whitewashed finish for corrosion resistance, available in multiple thread sizes including M2.5 and M3 diameters.
Stainless Steel Hex Socket Screws in A2-70 Grade with Whitewash Finish
These half round head pan head screws are metric fasteners designed for assembly and repair tasks where material specification matters. The stated A2-70 grade provides a clear material standard, indicating an austenitic stainless steel with a minimum tensile strength. The whitewash surface treatment offers a specific finish option. The product listing provides concrete dimensions for one size and a comprehensive list of available thread diameter and length combinations, allowing for selection based on project requirements without guesswork.
Features and Construction
This product's specifications are grounded in measurable engineering standards and physical dimensions, offering clarity for technical procurement or DIY projects.
Material and Build
The screw is constructed from Stainless Steel A2-70. This designation is not a generic term but refers to a specific grade defined by ISO standards, with the '70' denoting a minimum tensile strength of 700 N/mm². The 'A2' classification typically indicates a chromium-nickel-molybdenum austenitic steel, commonly used for its good corrosion resistance in many environments, though not for all chemical exposures. The surface has undergone a whitewash treatment, which is a specific finishing process.
Size and Practical Fit
The listed specific size has a head diameter of 16mm and an overall length of 5.7mm. Crucially, the product is offered in a wide array of other metric thread sizes. The M2.5 diameter is available in lengths from 4mm to 20mm, while the M3 diameter comes in lengths from 3mm to 25mm. This range covers many common fastening needs in electronics, machinery, and light fabrication, allowing users to match the screw to the material thickness and engagement depth required.
Uses and Placement
The combination of material grade, drive type, and available sizes dictates suitable applications, from hobbyist projects to specified industrial assemblies.
Event or Professional Use
In professional or workshop settings, these screws can be specified for assemblies where the A2-70 material properties are adequate. This includes non-marine fastening in dry or mildly damp interiors, fixtures for equipment housings, or securing components in appliances where stainless steel is specified. The hexagon socket drive allows for higher torque application compared to slotted or Phillips heads, which is a practical advantage in assembly lines or for maintenance where a secure fit is needed.
Everyday Home Use
For DIY and home repair, these screws are suitable for projects where corrosion resistance is a factor, such as outdoor furniture fittings (in suitable environments), fixing metal brackets, or assembling projects made from various materials. The availability of small diameters like M2.5 and M3 makes them relevant for repairing gadgets, assembling models, or securing small hardware where a precise, low-profile fastener is required.
Benefits and Buying Value
The value of these fasteners lies in their defined specifications, which enable informed selection and reduce the risk of material mismatch or failure in use.
Reuse and Low Maintenance
Stainless steel A2-70 screws are less prone to rusting than carbon steel equivalents in many conditions, meaning they can often be removed and reused if not damaged. The whitewash finish may also influence longevity depending on the environment. This can translate to lower long-term maintenance for a fastened item, as the fastener itself is less likely to corrode and seize or stain the surrounding material.
Why Choose This Product
The primary reason to choose this specific product is the clear specification of material grade (A2-70) and the extensive list of available metric sizes. This removes uncertainty for buyers who need a fastener that meets a known standard or who require a specific thread diameter and length combination. It provides a factual basis for selection over a generic 'stainless steel screw', aligning the purchase with the technical demands of the task.
