– 1.00" Bore Diameter – Mountable Clamping Two Piece Shaft Collar - 303 Stainless Steel (1 Pack)

  • Versatile Mounting Options: These shaft collars feature flats on the outer diameter with tapped holes, allowing for easy mounting of brackets, sensors, hinges and other components to round objects. These are frequently used to attach components to roll cages, mount air cylinders to base plates, and attach sensors and control boxes to round bar or tubing.
  • Precision Manufacturing: Made in the USA by Coastal Machine Works, these collars are crafted with precision. These two-piece stainless steel shaft collars have an inside diameter of 1.000 inches, an outside diameter of 1.75 inches and a thickness of 0.50 inches. Each collar is deburred and engraved with its inside diameter bore for easy identification.
  • High-Quality Stainless Steel Construction: Made from 303 stainless steel, these collars offer excellent corrosion resistance, making them perfect for wet environments or applications involving corrosive chemicals.
  • Easy Installation: The two-piece split design allows for simple assembly and disassembly anywhere along the shaft, without needing to remove other components or access shaft ends. This feature enhances convenience and flexibility in installation over one-piece collars.
  • Strong Clamping Force: The included 1/4-28 x 5/8” stainless steel socket head screws ensure strong, even clamping pressure around the shaft, avoiding damage to the shaft or pipe and providing superior holding power compared to set screw style collars.

I started in 2021 as a side hustle to my mechanical engineering job that involved designing equipment for the food processing industry. We used thousands of collars a year and a few things bugged me. The quality of the foreign collars we were using always seemed to be subpar and the price was high for what we were getting. I set out to make collars onshore using high-quality stainless steel and spending the extra time to make sure I’m delivering a first-rate product. Every edge and hole is deburred to reduce/eliminate the risk of cuts. The country of origin and bore size is engraved to make identification easy. Finally, every collar is rinsed, washed and dried to remove any oil residue from the machining process. My hope is that you enjoy the fit and finish of my collars as much as I enjoy making them.


  • We ship within Three business days of payment, usually sooner.
  • Some delivery times are longer than normal due to increased demand.
  • We use a selection of shipping services such as UPS, FedEx, USPS etc.
  • We only ship to the lower 48 states, no APO/FPO addresses or PO Boxes allowed.
  • Local pickups and combined shipping options are not provided at this time.


  • You can return a product for up to 30 days from the date you purchased it.
  • Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt.

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