M5-0.8 x 8 18-8 Stainless Steel Metric Flat Head Socket Cap Screw keeps the metric diameter, pitch, and overall length explicit for stainless countersunk fastening work. The flush surface helps reduce snag points around covers, guards, slide paths, and handled equipment faces.

Stainless enclosures and covers use countersunk metric hardware where a smooth outside surface improves handling and appearance. Some metric drawings call this 18-8 family A2 stainless; that is material wording, not a mechanical rating. Confirm overall length, head diameter, head height, socket size, and key engagement before substitution.

Cold Headers has supported specialty socket fastener sourcing since 1962, including exact metric sizes for maintenance and production work. Cold Headers can review cut-to-length metric requirements for repair work. Compare 18-8 Metric Socket Head Cap Screws when a full cylindrical head is preferred.

Technical Highlights

• Head Style: Flat (countersunk), internal hex drive
• Countersink Angle: 90°
• Material: 18-8 Stainless Steel
• Thread Size: M5-0.8 (coarse metric pitch)
• Length: 8 mm (overall, including head)
• Head Diameter: 10.00 / 9.78 mm (max/min)
• Head Height: 3.10 mm (max)
• Hex Key Size: 3.0 mm
• Minimum Key Engagement: 1.86 mm
• Dimensional Standard: ISO 10642

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.