10-50Pcs M2/M3/M4/M5/M6 Nylon Insert Self-Lock CNC Aluminum Nuts Hex Lock Nut

M2 M2.5 M3 M4 M5 M6 Brass Cylinder Knurled Threaded Round Insert Embedded Nuts

200Pcs AXK Brass Knurled Insert Nuts, Female Threaded Heat Set Inserts Assortmen

M2 / M3 Brass Cylinder Knurled Threaded Round Insert Embedded Nuts 100PCS

M2 M2.5 Metric Solid Brass Knurled Nuts Threaded Round Insert Embedded Nuts

M3 x 4mm Female Thread Brass Knurled Threaded Round Insert Embedded Nuts 200PCS

200Pcs M2 M3 Solid Brass Cylinder Knurled Nuts Threaded Embedded Round Insert

200Pcs M2 304 Stainless Steel Metric Hex Nuts Hexagon Jam Thin Nut DIY Fasteners