Check the listing for details. 10sets Set Screw Shaft Collars 2mm ID 7mm OD Gear Stopper Wheel Collar. Condition: New. Listed at 13.91 USD. Durable Construction: Made of 304 stainless steel, high strength, strong locking force, anti-corrosion, and durability. Round bore collars are commonly used as positioners, spacers, stops, and bearing surfaces.Secure Shaft Attachment: Set screw collars are designed with a threaded hole and a set screw that tightens against the shaft, ensuring a secure attachment. This feature prevents slippage or movement of components during operation.Adjustable Positioning: The set screw design allows for adjustable positioning along the shaft. This flexibility enables fine-tuning and precise alignment of components to achieve optimal functionality and performance.Versatile Applications: These collars are widely used across different industries, including automotive, robotics, and RC airplane models.Durable Construction: Made of 304 stainless steel, high strength, strong locking force, anti-corrosion, and durability. Round bore collars are commonly used as positioners, spacers, stops, and bearing surfaces.Secure Shaft Attachment: Set screw collars are designed with a threaded hole and a set screw that tightens against the shaft, ensuring a secure attachment. This feature prevents slippage or movement of components during operation.Adjustable Positioning: The set screw design allows for adjustable positioning along the shaft. This flexibility enables fine-tuning and precise alignment of components to achieve optimal functionality and performance.Versatile Applications: These collars are widely used across different industries, including automotive, robotics, and RC airplane models.