70pcs M4/M5/M6 Zinc Alloy Furniture Hex Drive Head Insert Nuts Set Features: 1. Made of zinc alloy, with good wear resistance, can keep thread integrity after multi times use. 2. Unique self-tapping designed external thread, contribute to tapping, with good tensile resistance, can effectively prevent stripped. 3. Suitable for pine, plywood, fiberboard, etc, have a good effect in furniture combination. 4. Easy to install, high stability. 5. 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. Specifications: Material: Zinc Alloy Weight: 125g M6 x 13mm 10pcs M6 x 15mm 10pcs M4 x 8mm 10pcs M4 x 10mm 10pcs M5 x 10mm 10pcs M6 x 8mm 10pcs M6 x 10mm 10pcs Package Included: 70 x Furniture Hex Drive Head Nuts 1 x Storage Box