M3-0.5 x 100 18-8 Stainless Steel Metric Socket Head Cap Screw fits metric fastening positions where clean appearance and general corrosion resistance both matter. The socket head form is common in machinery where strong tool engagement and compact radial clearance are needed. For chloride, salt-spray, or marine-adjacent service beyond 18-8's comfort zone, a 316 stainless metric request can be quoted separately.

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.

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: M3-0.5 (coarse metric pitch)
• Length: 100 mm
• Head Diameter: 5.50 / 5.20 mm (max/min)
• Head Height: 3.00 / 2.86 mm (max/min)
• Hex Key Size: 2.5 mm
• Minimum Key Engagement: 1.3 mm
• Dimensional Standard: ISO 4762 / DIN 912

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