Flat Head Hex Socket Cap Screw-304 Stainless Steel 18-8-Hex Drive-Bright Finish

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1.High-Performance Construction – Precision-machined from work-hardened 18-8 (A2/304) stainless steel, these flat head hex socket cap screws provide ≈ 100 ksi / 690 MPa tensile strength while resisting rain-water, salt-spray, food acids, and most industrial chemicals between −196 °C and +425 °C. The 82° (metric 90°) Flat head seats flush for a smooth, snag-free surface yet delivers robust clamping force without head distortion under vibration and provides good strength and corrosion resistance in bad environments.

2.Broad Application Range – this type can be widely used in the home and office appliance, communication equipments, ship assembly , the mechanical industry and small repairs around shops, garages or home furniture fasteners.Favoured in sheet-metal enclosures, CNC machinery, aerospace and automotive bodywork, marine hardware, electronics chassis, architectural façades, and premium furniture—any assembly that demands a flush profile combined with long-term corrosion protection. Ideal for tight clearances where traditional hex bolts or pan heads would protrude.

3.Easy to Operate – Deep internal hex recess accepts standard Allen keys or power bits for one-handed tightening in confined spaces, transmitting high torque without cam-out. The countersunk head self-centres in pre-formed 82°/90° chamfers for accurate alignment, while rolled UNC or metric threads start easily, run smoothly, and minimize galling; chamfered tips guide quickly into tapped holes.

4.Assured Quality – Produced under ISO 9001 systems and compliant with ASME B18.3 / ISO 10642 dimensions plus ISO 3506-1 mechanical requirements. Each lot is thread-gauge verified, hardness and tensile tested, magnetic-particle inspected, and passivated for maximum corrosion resistance; EN 10204 3.1 material certificates and laser-etched heat-lot codes provide full traceability, guaranteeing consistent, long-service performance in demanding environments.