M20-2.5 x 50 Cup Point 18-8 Stainless Steel Metric Socket Set Screw is a headless internal-hex fastener for locking collars and hubs in wet metric equipment.

Protected marine-adjacent deck mechanisms may call for stainless metric set screws, with final material selection based on exposure. Some imported metric drawings refer to A2 stainless; use the actual drawing language and service conditions when confirming the part. Confirm the metric thread, length, cup diameter, and hex key before substituting another set screw.

Cold Headers supports imported equipment rebuilds where the replacement screw must preserve the original metric callout.

Technical Highlights

• Point: Cup (recessed rim)
• Material: 18-8 Stainless Steel
• Thread Size: M20-2.5 (coarse metric pitch)
• Length: 50 mm
• Cup Diameter (dz): 14.00 / 13.57 mm (max/min)
• Hex Key Size: 10 mm
• Length Tolerance: ±0.5 mm
• Dimensional Standard: ISO 4029 / DIN 916

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