This LH 1-1/4"-12 Hex Tube Insert is engineered to weld into 2.00" inner diameter DOM tubing, providing strong left-hand 1.25"-12 threads for use with large 1-1/4" LH Heim joints. The hex-shaped head allows easy tightening with a wrench—perfect for building adjustable, heavy-duty link bars and enabling fast field service or tuning.
Made from high-strength weldable steel, this insert is ideal for high-load off-road applications including 4-link suspensions, steering arms, drag links, and radius rods on rock crawlers, Ultra4 cars, mud trucks, and more.
Use with a RH insert on the opposite end for turnbuckle-style adjustability without removing hardware.
? What’s Included
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(1) LH Hex Tube Insert – 1.25"-12 Left-Hand Thread for 2.00" ID Tubing
? Specifications
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Thread Size: 1.25"-12 Left-Hand
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Tube Fitment: 2.00" Inner Diameter
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Material: CNC Machined Weldable Steel
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Design: Hex Head (Wrench Flats)
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Finish: Raw Steel – Ready to Weld
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Use With: 1-1/4" LH Heim Joints
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Style: Weld-In Hex Bung / Tube Insert
✅ Applications
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Oversized 4-Link Suspension Arms
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Radius Arms, Steering Links & Drag Links
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Rock Crawlers, Mud Trucks, Ultra4, Sand Rails
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Custom Fabricated Chassis & High-Horsepower Builds
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DIY Off-Road Fabrication Projects
