M8-1.25 x 25 18-8 Stainless Steel Metric Socket Head Cap Screw provides a cylindrical socket head and internal hex drive for metric assemblies exposed to ordinary moisture. The verified head and socket dimensions help confirm counterbore fit before substituting another metric screw. For stainless-on-stainless assembly, run threads at moderate speed and use lubricant or anti-seize when galling is a concern.

Chemical dosing skids and pump-adjacent equipment may use 18-8 where the actual exposure is within the material's limits.

Cold Headers can help identify hard-to-find metric stainless sizes while preserving the required thread and length. Review the metric thread, length, head diameter, head height, socket size, and key engagement before substituting another screw. Cold Headers can help confirm the exact metric length and stainless family when replacement records are incomplete.

Technical Highlights

• Head Style: Cylindrical socket head, internal hex drive
• Material: 18-8 Stainless Steel
• Thread Size: M8-1.25 (coarse metric pitch)
• Length: 25 mm
• Head Diameter: 13.00 / 12.57 mm (max/min)
• Head Height: 8.00 / 7.78 mm (max/min)
• Hex Key Size: 6.0 mm
• Minimum Key Engagement: 4.3 mm
• Dimensional Standard: ISO 4762 / DIN 912

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