M20 x 20 Alloy Steel Metric Socket Head Shoulder Screw (Stripper Bolt) is a socket head shoulder screw for die, mold, and machine motion built around a 20 mm shoulder. This is a locating and motion component, not a substitute for a clamp-load cap screw when the print calls for clamping.

Guide posts on metric machinery use shoulder screws to align covers, slides, fixture details, and moving stops. Check shoulder diameter, shoulder length, thread size, thread length, socket size, and head dimensions before substitution.

When the length or diameter is uncommon, Cold Headers can help review the metric shoulder screw requirement by exact size. Non-catalog shoulder diameters or shoulder lengths can be quoted when the standard range does not match the tool drawing.

Technical Highlights

• Style: Socket head shoulder screw (stripper bolt), internal hex drive
• Material: Alloy Steel
• Shoulder Diameter: 20 mm nominal (19.98 / 19.928 mm)
• Shoulder Length: 20 mm
• Thread: M16-2.0 (one size below the shoulder, per ISO 7379)
• Thread Length: 22.40 mm
• Head Diameter: 30.00 / 29.67 mm (max/min)
• Head Height: 14.00 / 13.73 mm (max/min)
• Hex Key Size: 10 mm
• Minimum Key Engagement: 8.8 mm
• Dimensional Standard: ISO 7379

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