When an EDCO concrete grinder or scarifier starts running loose or a fastener won't stay torqued down, a worn or missing lock washer is often the reason. The EDCO 10045 is a genuine OEM 1/2-inch zinc-plated lock washer used throughout EDCO's walk-behind grinders, single-disc grinders, and scarifiers to keep bolted joints from vibrating loose under heavy grinding loads.
Built For
- Contractors performing routine maintenance on EDCO grinders and scarifiers
- Equipment rental yards restocking OEM hardware for fleet upkeep
- DIY repairs where the original lock washer was lost, corroded, or damaged during disassembly
The split-ring design creates spring tension between the bolt head or nut and the mating surface, resisting the vibration that loosens standard flat washers on grinding and scarifying equipment. The zinc plating resists corrosion in the wet, abrasive conditions typical of concrete grinding jobsites.
Specifications
| Part Number | 10045 |
| Type | Split lock washer |
| Size | 1/2 inch |
| Finish | Zinc plated |
| Compatible Equipment | EDCO grinders and scarifiers using 1/2-inch fasteners |
Frequently Asked Questions
What size bolt does this washer fit?
The EDCO 10045 is sized for 1/2-inch fasteners, matching the bolt hardware used throughout EDCO's grinder and scarifier product lines.
Is this a genuine EDCO OEM part?
Yes, this is the OEM lock washer listed under EDCO part number 10045 in EDCO parts manuals for their grinding and scarifying equipment.
Why use a lock washer instead of a standard flat washer?
Lock washers create spring tension against the fastener, which resists the vibration from grinding equipment that can gradually back out bolts secured with flat washers alone.
Will this fit non-EDCO equipment?
It is sold as the EDCO-specified part, but any equipment using a standard 1/2-inch split lock washer with a compatible bolt size will accept it.
Discount Cleaning Products is an authorized EDCO parts dealer, backed by US-based customer service for order and fitment questions.
