A round flat washer with a square hole pairs with a square-neck or carriage bolt, the square bore stopping the fastener turning as the nut is tightened. Bore size across the flats, outside diameter and thickness are the selection points.
Bringing this in through one partner, together with the rest of your C-parts, cuts paperwork and helps you avoid the stoppages a missed part causes. Get in touch for a quote.
Engineering support for material and finish selection
Global sourcing for lead time and cost optimization
Supply continuity and program support
Consolidate standard and custom parts through one partner