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Ideal for: Aerospace Fasteners, High-Stress Metric Components, Aviation Engines.

  • Product Standard: MJ Metric Aerospace Full Profile laydown threading inserts (ISO 5855).
  • Critical Safety: Features a controlled, enlarged root radius (Rmax 0.18042P / 0.15011P) to maximize fatigue strength in high-stress applications.
  • Precision Range: Covers fine to coarse metric aerospace pitches from 0.7mm to 4.0mm.
  • Core Availability: Stocked in the popular 16er threading inserts (3/8″ I.C.) format, plus 1/4″ and 1/2″ I.C. sizes.
  • Versatile Machining: High-performance threading inserts for lathe operations, available in Right-Hand and left hand thread insert configurations.
  • Material: Tough carbide threading inserts designed for turning heat-resistant superalloys and titanium.

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Product Overview

Elevate your aerospace manufacturing with our MJ Metric Aerospace laydown threading inserts. The MJ thread profile is the metric equivalent of the UNJ standard, specifically designed to prevent stress fatigue in critical fasteners and engine components.

Unlike standard ISO Metric (M) threads, these carbide threading inserts feature a strictly controlled, larger root radius. This Full Profile geometry cuts the thread groove, forms the critical root radius, and tops the crest simultaneously, ensuring total compliance with aerospace specifications.

Key Features & Benefits

  • Fatigue Resistance: The increased root radius significantly reduces stress concentration, a mandatory requirement for aerospace safety parts.
  • The 16ER Standard: Our 16er threading insert range handles the widest variety of MJ pitches (0.7mm – 2.5mm), making it the versatile choice for most aviation jobs.
  • High Precision: “Topping” inserts ensure the major diameter is perfectly concentric with the thread pitch diameter.
  • Directional Options: We offer comprehensive solutions, including standard right-hand tools and left hand thread insert (EL/IL) models for specialized fasteners.

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