M3 x 3mm Female Thread Brass Knurled Threaded Insert Embedment Nuts 100PCS U1X6

M3 x 3mm Female Thread Brass Knurled Threaded Insert Embedment Nuts 100PCS W4P9

100Pcs M4 x 5mm Female Thread Brass Knurled Threaded Insert Embedment Nuts

100Pcs M5x0.8mm Female Knurled Insert Nuts for Machine Brass Embedment Nuts

M2 x 0.4mm Female Brass Knurled Threaded Insert Embedment Nuts 100PCS

M3 x 3mm Female Thread Brass Knurled Threaded Insert Embedment Nuts 100PCS J7Q8

M3 x 3mm Female Thread Brass Knurled Threaded Insert Embedment Nuts 100PCS N5H1

280X M2 M2.5 M3 Female Thread Brass Knurled Threaded Insert Embedment Nuts Kit