They don't always fit the standard 1/2 KO hole but are much cheaper to use than the metal parts. (They also fit the PVC clutch hub pretty snugly, in case anyone is interested.)
WIDGETCO White Hole Plugs
9 Review
π§Ό Efficient Cleaning with Canplas 193064 Flush Cleanout - 4 Inch Diameter
High-Quality White Plastic Flush Type Plugs for Industrial Hardware Applications
π Kreg P OAK Plugs Pocket Hole 50 Pack
7 Review
π© N100 792 National Hardware Plated Holder
8 Review
Stainless Steel Bracket Shelves: Industrial Hanging Hardware
π© Enhanced Durability and Stability: Outside Joining Aluminum Profile Bracket
Stainless Steel π© Fastener Hardware by BIGTEDDY