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uxcell 4pcs Set Screw Collars 7/8" Bore 304 Stainless Steel Shaft Collars, 1-1/2" OD, 9/16" Width Axle Collar Clamp for Linear Rod Shaft Guide update_march2023 Buy with No Risk Weuxcell 4pcs Set Screw Collars 7 8" Bore 304 Stainless Steel Shaft Collars, 1 1 2" OD, 9 16" Width Axle Collar Clamp for Linear Rod Shaft Guide 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