NUT (CAT CT21645)

A damaged nut can compromise the security of a bolted joint, leading to loosening over time. This aftermarket replacement part references the CAT catalog and carries the cross-reference number CT21645. The nut is a threaded fastener that mates with a bolt to clamp components together. Its primary mechanical function is to convert rotational torque into clamping force. If the nut fails or strips, the joint may separate, causing misalignment or component detachment. During routine service, a nut that cannot hold torque indicates it should be replaced. Verify the serial number or application, then call (562) 693-7748. The item ships at approximately 0.1 POUNDS.

Part number variants: CT21645, ct21645