M8-1.25 x 4 Cup Point 18-8 Stainless Steel Metric Socket Set Screw is selected for stainless metric assemblies where rust-related seizure would complicate removal.

Metric collars, couplings, and guide rings use the cup rim to concentrate contact at the selected location on the shaft. Stainless-on-stainless threads can gall when driven fast and dry, so moderate installation speed and suitable lubricant help protect the tapped hole. Confirm the metric thread, length, cup diameter, and hex key before substituting another set screw.

Cold Headers helps maintenance teams and distributors match metric diameter, pitch, length, material, and point style.

Technical Highlights

• Point: Cup (recessed rim)
• Material: 18-8 Stainless Steel
• Thread Size: M8-1.25 (coarse metric pitch)
• Length: 4 mm
• Cup Diameter (dz): 5.00 / 4.70 mm (max/min)
• Hex Key Size: 4 mm
• Length Tolerance: ±0.24 mm
• Dimensional Standard: ISO 4029 / DIN 916

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