This aftermarket fixing bolt replacement fastener is specially made for handheld cordless circular cutting power tools to lock cutting disc and internal structural parts firmly during wood trimming work. The spare bolt is manufactured under unified dimension specification of 0.45 x 0.45 x 2.25 inches, perfectly matching the thread installation hole of compatible cutting machines, and solving loose cutting blade, vibrating saw head and shifting internal components caused by rusted, stripped or lost original fixing hardware. The single finished bolt requires no matched gaskets or auxiliary fasteners, users can finish disassembly and replacement through simple DIY maintenance operations without professional repair personnel.

The thread pitch, rod diameter and head size of this replacement bolt fully conform to the assembly standard of matching circular cutting equipment. It delivers tight locking force to prevent cutting disc offset and abnormal shaking under high-speed rotation, ensuring stable cutting track and uniform trimming lines in long-term continuous carpentry processing. High structural rigidity avoids thread sliding and bolt deformation under frequent disassembly and high load cutting, effectively reducing accidents caused by loose internal structures during wood cutting tasks. Swapping damaged old bolts with this hardware restores stable equipment locking performance without replacing the whole cutting machine.

This universal locking spare fastener is an economical maintenance accessory for household renovation, woodworking workshop and construction site circular cutting equipment. It effectively extends the service life of existing handheld cutting tools and removes extra costs for purchasing brand-new complete cutting units. Small compact bolt structure occupies little storage space, easy to reserve as standby maintenance hardware for daily wood trimming and construction cutting projects.

Applicable matching equipment models: DCS577X1, DCS577T1, DCS577B