M3 x 3mm Female Thread Brass Knurled Threaded Insert Embedment Nuts 100PCS E4R1

M3 x 3mm Female Thread Brass Knurled Threaded Insert Embedment Nuts 100PCS R5U1

M3 x 3mm Female Thread Brass Knurled Threaded Insert Embedment Nuts 100PCS H9M5

M3 x 3mm Female Thread Brass Knurled Threaded Insert Embedment Nuts 100PCS V3D6

M3 x 3mm Female Thread Brass Knurled Threaded Insert Embedment Nuts 100PCS E3H1

M3 x 3mm Female Thread Brass Knurled Threaded Insert Embedment Nuts 100PCS A7Z2

M3 x 3mm Female Thread Brass Knurled Threaded Insert Embedment Nuts 100PCS Y8H9

M3 x 5mm(L) x 5.4mm(OD) Brass Knurled Threaded Insert Embedment Nuts, 40 Pcs