DURABLE STAR HEAD - The plum head is made of high quality plastic with good toughness and impact resistance, durable to use. RUSTPROOF SCREWS - The screws are made of high quality iron, surface zinc plated, high hardness, rustproof, sturdy and durable. EASY TO USE - Large knurled plastic handle for comfortable grip, fully screwed design for easy installation, removal and adjustment. WIDE APPLICATION - These thumb screws are widely used for mechanical equipment, electronic equipment, communication equipment, computer hardware, furniture decoration and other related industries. PACK OF 10 - Each pack contains 10 M6*30mm thumb screws. Thread Length: 30mm/1.18inch; Thread Diameter: M6, Metric Thread. Sturdy Star Head The plum head is made of high quality plastic, good toughness and impact resistance, durable. < p>Anti-rust Screws The screws are made of high quality iron, surface galvanized, high hardness, rust-proof, sturdy and durable. Easy to Use Large knurled plastic handle for