S-7549K22 M20 x 1 1/4" DIN 103 Metric Precision Lead Screws and Nuts

Key Features & Benefits at a Glance

• Enhanced durability and corrosion resistance with manganese bronze construction for long service life in demanding industrial environments
• High load-bearing capability with 3100 lbs dynamic thrust load capacity for reliable performance under heavy mechanical stress
• Precision thread engagement with 7H thread fit ensuring smooth, accurate motion and reduced backlash in lead screw assemblies
• Robust flange design featuring 12L14 carbon steel with Brinell 150 hardness for secure mounting and vibration resistance
• Standardized metric trapezoidal thread (M20 x 4mm pitch) compliant with DIN 103 for seamless integration with existing metric systems
• Efficient linear motion with 4mm travel per turn and single-start right-hand thread for predictable, controlled movement
• Simplified installation with 4 pre-drilled mounting holes (17/64" diameter) for quick, secure fastening in precision equipment

Professional Applications & Engineering Value

This M20 metric trapezoidal flange nut delivers exceptional engineering value in precision motion control systems where reliability and accuracy are paramount. The combination of manganese bronze for the nut body and 12L14 carbon steel for the flange creates an optimal balance between wear resistance and structural integrity. The trapezoidal thread profile with 4mm pitch provides superior power transmission efficiency while minimizing friction in lead screw applications. This DIN 103 certified component solves critical challenges in CNC machinery, industrial automation, and precision positioning systems by offering consistent performance under dynamic thrust loads up to 3100 lbs, ensuring minimal maintenance requirements and extended service intervals in continuous operation environments.

Specification Summary & Compliance

This precision flange nut maintains 7H thread fit tolerance according to metric trapezoidal standards with M20 x 4mm thread size and right-hand thread direction. The component fully complies with DIN 103 specifications for trapezoidal threads, ensuring dimensional accuracy and interchangeability. Material certifications include manganese bronze (Brinell 126 hardness) for the nut body and 12L14 carbon steel (Brinell 150 hardness) for the flange, meeting industrial standards for mechanical performance and durability in precision engineering applications.