Hilitchi 460 Pcs M2 M3 M4 M5 Female Thread Brass Knurled Threaded Insert Embedment Nuts Assortment Kit, Embed Parts, Pressed Fit into Holes for 3D Prints and More Projects: Amazon.com: Industrial &
uxcell a16103100ux0956 M5x10 mm Interface Hex Socket Threaded Insert Nuts for Wood Furniture (Pack of 100): Amazon.com: Industrial & Scientific
Self Tapping Threaded Insert,10pcs M8 x M5 Self Tapping Threaded Insert 302 Slotted Type Screw Bushing for Thread Repair: Amazon.com: Industrial & Scientific