M5-0.8 x 20 18-8 Stainless Steel Metric Socket Head Cap Screw pairs 18-8 stainless steel with standard metric socket head geometry for industrial assemblies. The socket head form is common in machinery where strong tool engagement and compact radial clearance are needed. Where maximum clamp strength matters more than stainless corrosion performance, compare Alloy Steel Metric Socket Head Cap Screws.

Metric control enclosures and instrument housings use socket head fasteners where internal hex access is preferred. On many metric drawings, A2 stainless identifies the same broad chromium-nickel stainless family commonly called 18-8 in North America.

The catalog keeps this 18-8 metric SHCS family separate from alloy and inch-series socket head cap screws. Review the metric thread, length, head diameter, head height, socket size, and key engagement before substituting another screw.

Technical Highlights

• Head Style: Cylindrical socket head, internal hex drive
• Material: 18-8 Stainless Steel
• Thread Size: M5-0.8 (coarse metric pitch)
• Length: 20 mm
• Head Diameter: 8.50 / 8.14 mm (max/min)
• Head Height: 5.00 / 4.82 mm (max/min)
• Hex Key Size: 4.0 mm
• Minimum Key Engagement: 2.7 mm
• Dimensional Standard: ISO 4762 / DIN 912

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