M12 x 16 Alloy Steel Metric Socket Head Shoulder Screw (Stripper Bolt) is ordered by shoulder diameter and shoulder length, so this size is not equivalent to a cap screw callout. This is a locating and motion component, not a substitute for a clamp-load cap screw when the print calls for clamping.

Imported-equipment rebuilds often require the original shoulder diameter, shoulder length, and smaller thread pairing. 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. ISO 7379 catalog nominals often list 13 mm here; this hard-to-find 12 mm shoulder is a stocked variant used in North American metric tooling.

Technical Highlights

• Style: Socket head shoulder screw (stripper bolt), internal hex drive
• Material: Alloy Steel
• Shoulder Diameter: 12 mm nominal (11.984 / 11.941 mm)
• Shoulder Length: 16 mm
• Thread: M10-1.5 (one size below the shoulder, per ISO 7379)
• Thread Length: 16.40 mm
• Head Diameter: 18.00 / 17.73 mm (max/min)
• Head Height: 8.00 / 7.78 mm (max/min)
• Hex Key Size: 6 mm
• Minimum Key Engagement: 4.9 mm
• Dimensional Standard: ISO 7379

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