M6 Flat Head Rivet Nut: The package contains 50 M6 threaded insert nutserts. Length: 15mm, caliber: 9mm, model: M6, fastener type: hollow. Durable Stainless Steel Material: The blind rivet nut is made of high-quality 304 stainless steel, strong and durable, rust-resistant and corrosion-resistant. The surface is smooth and burr-free, suitable for use in harsh environments including high temperature, cold, and high humidity. Unique Internal Thread Design: M6 threaded nutserts feature a knurled deep internal thread for tight, non-slip performance, effectively securing fasteners. Suitable for use with various materials including steel, fiberglass, and plastic. Easy to Use: Threaded rivet inserts are easy to install, providing strong friction and grip force. Simply drill a hole to match the rivet nut size, insert the rivet nut, and secure using a rivet tool. Wide Application: Flanged rivet nuts are ideal for securing tubs, mounting storage containers, and anchoring in wheel wells. Commonly used in automotive, furniture, decoration, electrical appliances, and industrial manufacturing. Also suitable for applications in metal sheets and various industrial fields.