Standard M6 x 15mm Size - The internal thread size is M6; the length of the screw part is 15mm; the drilling size is 8mm; the head size of the screw nut is 12mm. Standard M6 size for most usage. M6 Screw In Nuts BULK! - Come with 150 pieces M6 furniture hex screws in total. Enough quantity for daily use. Suitable for woodworking. Sturdy & Durable - These M6 threaded insert nuts are made of 100% zinc alloy, which is anti-rust and wear-resistant. Sturdy and durable for long term use. Just drill proper size hole and tighten with a hexagon wrench. They are multipurpose threaded insert nuts that you can simple drive with them. These M6 threaded inserts nuts are advantageous over barrel nuts and T-nuts. Widely Application: Suitable for most kind of hard woods and soft woods. Such as solid wood, pine, plywood and fiberboard. They can perform great in the furniture combination. Specification Product Name: M6 x 15mm Hex Socket Screw Color: Silver Material: Zinc Alloy Quantity: 150 Pieces M6 x 15mm Screw Inserts Dimension: Internal Thread: M6 Length of the Screw Part: 15mm Drilling Hole: 8mm Head Size: 12mm Package Includes: 150 x M6 15mm Hex Socket Screw Inserts