M3-0.5 x 120 18-8 Stainless Steel Metric Socket Head Cap Screw gives buyers a precise metric callout without converting the print to an inch-series screw. Head height in this socket head pattern corresponds to the nominal metric thread diameter, a useful check when reviewing counterbore clearance. 18-8 is a general-purpose stainless choice, so final material selection still depends on chemicals, chlorides, load, and service conditions.

Imported European machinery maintenance often requires exact metric socket screws to match the original bill of material.

Left-hand metric threading can be quoted on request for special socket head cap screw applications. Cold Headers focuses on specialty socket products for production, repair, replacement, and imported-equipment support. 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: 120 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.