STANLEY ENGINEERED FASTENING — Helical Inserts — Tanged Helical Insert, Free-Running, M12-1.25 Thrd Sz, 18-8 Stainless Steel, 6 PK

A practical Helical Inserts by STANLEY ENGINEERED FASTENING intended for repeatable results in shop, facility, and field workflows.

Quick specs

• Material: 18-8 Stainless Steel
• Finish: Plain
• System of Measurement: Metric
• Overall Length: 18 mm
• Manufacturer Part Number: R4649-12
• UPC: 025964180681

Product information

• Manufacturer Part Number: R4649-12
• UPC: 025964180681
• Country of Origin: United States

Dimensions

• Drill Bit Size: 12.25 mm
• Outside Diameter: 14.65 mm
• Compatible Tap Size: M12-1.25
• Overall Length: 18 mm
• Thread Size: M12-1.25

Details

• Features: Packaged in Lengths Corresponding to Various Spark Plug Reaches
• Manufacturer Location: Made in USA
• Item: Helical Insert
• Thread Direction: Right Hand
• Material: 18-8 Stainless Steel
• Material Grade/Class: Not Graded
• Finish: Plain
• Thread Type: Metric Fine
• Tang Style: Tanged
• Compatible Material: Metal
• Tensile Strength: 200,000 to 250,000 psi
• Helical Insert Type: Free-Running
• System of Measurement: Metric
• Tensile Strength (PSI): 200,000 to 250,000 psi
• Application: For Metal
• Rockwell Hardness: C43-C50
• Series: Heli-Coil
• Thread Pitch: 1.25 mm

This Helical Inserts is selected for dependable day-to-day use.

Recommended for field service tasks and on-site replacement and intended for professional buyers focused on durability and uptime.

Highlights

• Suitable for maintenance, repair, and project-based procurement.
• Helps keep specifications consistent across replacements and replenishment cycles.
• Designed for professional use where predictable fit and handling are important.
• Works well in standardized part lists and preventative maintenance schedules.

Notes: Verify measurement standards, tolerances, and compatibility with existing assemblies before purchase.