Threaded Insert Nuts, Hex Socket Screw in Nuts 50Pcs M4*8mm Zinc Alloy Drive Head Furniture for Wood

Material: Made from premium zinc alloy, ensuring durability and rustproof performance. Effortless Installation: Features a unique external thread design for easy and smooth insertion into holes. Strong Pull-Out Resistance: The external thread provides excellent resistance against pull-out forces, ensuring a secure hold. Flanged Head Design: Prevents surface splitting and over-insertion, maintaining stability and integrity. Versatile Application: Offers a strong, permanent thread for use in wood and wood-based sheet materials.