This is a 5/16-18 x 1-1/4 inch hex head cap screw, sold under part number CKE962157. It is a standard hardware fastener used in the assembly of various commercial cleaning machines.

• 5/16-18 thread
• 1-1/4 inch length
• Hex cap screw head

Confirm the thread size and length against your machine's original hardware before ordering, as this is a general-purpose fastener rather than a brand-specific part.