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

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

M3 x 3mm Female Thread Brass Knurled Threaded Insert Embedment Nuts 100PCS P5K3

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

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

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

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