Type D Threaded Insert Nuts. Insert Nuts provide a strong, permanent thread for wood and wood based sheet materials. The unique external thread ensures strong resistance against pull out and the flanged head prevents splitting of the surfaces and driving the Insert in too far.
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100-Piece Threaded Insert Kit M2 M3 M4 M5 M6 Metric Threaded Brass Heat-Cured Inserts for Plastic And 3D Printed Components
Aliexpress UK
Threaded Wood Insert Nuts Type D – M4, M5, M6, M8 & M10. Multiple Sizes Available: Choose from M4, M5, M6, M8, and M10 internal threads to suit your specific project needs. M8 x 13 11.0 - 11.5 mm. M8 x 18 11.0 - 11.5 mm.
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M2 M2.5 M3 M4 M5 M6 Heat Set Insert Tip Tool Brass Nut Threaded Insert Metric Knurled Nuts Assortment Kit Insert for 3D Printing
Aliexpress UK
Material ：Stainless Steel. The link shows that the inventory is all fake.
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M2 M3 M4 M5 M6 Press Heat Set Insert Tool Brass Insert Nut Soldering Iron Tip Threaded Inserts for plastic 3d printer Acessories
Aliexpress UK
Four Pronged T Nuts Steel. Specs (mm) M4 M5 M6 M8 M10. Threaded Rod. T-nuts are threaded steel inserts with prongs that insert claws into wood when they are tightened, and often work when wood screws fail.
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Insert Nut Set M2 M2.5 M3 M4 M5 M6 Brass Heat Set Insert Nut Hot Melt Knurled Threaded Inserts for 3d Print Embedment Copper Nut
Aliexpress UK
Choice of M4, M5, M6, M8 & M10 internal threads. Installed by simply screwing into a suitable size hole. M8 x 13 11.0 - 11.5 mm. M4 x 10 5.6 - 6.0 mm. M8 x 18 11.0 - 11.5 mm. M8 x 20 11.0 - 11.5 mm.
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900/200Pcs Threaded Inserts, M2 M3 M4 M5 M6 Brass Heat Set Inserts for Plastic Metric Knurled Nuts Insert 3D Printing Components
Aliexpress UK
Choice of M4, M5, M6 & M8 internal threads. Installed by simply screwing into a correct size hole using an allen key. M8 inserts require a hole size of 11.1mm - 11.5mm. M4 inserts require a hole size of 5.6mm - 6mm.
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300/100pcs Premium Brass Threaded Inserts M3 M4 M5 M6 Female Knurled Metric Insert Nuts Heat Set Inserts for Plastic 3D Printing
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Countersunk Bolts. Imperial Threaded Bar. Threaded Bar - Stainless Steel. Threaded Bar - Zinc Plated. Flanged Nuts. Hex Full Nuts. Lifting Eye Nuts. Nyloc Nuts.
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BT-606 Mandrel Rivet Nut Gun, Hand Heavy Duty Rivet Nut Setter Tool Kit,Threaded Riveter Tool,Threaded Insert Hand Riveter M3-M8
Aliexpress UK
E nhance the strength of the inner thread of the product：. can be used fo r frequent disassembly, installation of machine parts and often rotating screw holes, to extend its service life. Product functi on ：.
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20/100pcs Threaded Insert Nut Wood Furniture Cabinet Headless Screw in Nuts Threaded Fastener Hexagon Connector Nut M4 M5 M6 M8
Aliexpress UK