ST 3/4" Bore Solid Carbon Steel Zinc Plated Shaft Collars - 4 Pack - Durable & Heavy Duty Set for Machinery, Automotive, Lawn Tractor & Industrial Use

Upgrade your machinery with durable high carbon steel shaft collars designed for strength and precision. Each collar is zinc plated to protect against corrosion, improve weldability, and extend service life—making them a reliable choice for industrial, automotive, agricultural, and hobby applications. Measuring 3/4" bore, 1 1/4" outside diameter, and 1/2" height, these collars deliver a secure hold and vibration-free performance on your shafts. The included flush socket cup-point set screws ensure a strong, professional lock that won’t shift under heavy loads. From gearbox assemblies to machine tools, agricultural implements, and even hobby projects, these collars are versatile, dependable, and built to handle tough environments. Each set includes 4 shaft collars plus 2 spare screw and an allen key packaged with care for immediate use. With fine workmanship, heavy-duty carbon steel strength, and protective zinc coating, Splenor Tools delivers the quality and reliability you can trust.

• Heavy-Duty Carbon Steel Strength – Built from high-quality carbon steel, these shaft collars deliver superior hardness, toughness, and load-bearing strength for demanding industrial and mechanical applications.
• Protective Zinc Plating – Each collar is zinc plated for enhanced corrosion resistance and weldability, giving you longer service life and reliable performance even in outdoor or humid conditions.
• Precision Machined Fit – With a 3/4" bore, 1 1/4" outer diameter, and 1/2" height, these collars provide a secure, accurate fit that reduces shaft play, minimizes vibration, and ensures smooth machine operation.
• Secure Locking with Set Screws – Equipped with 1/4-20x1/4 socket cup-point set screws, designed to sit flush against the surface for a tight, reliable grip that won’t loosen during heavy use.
• Versatile Industrial Use – Perfect for gearboxes, machine tools, drive shafts, agricultural implements, automotive parts, medical equipment, and hobby craft projects, this 4-pack with 2 spare screw and allen key is ideal for professionals and DIY users alike.