General description Pack of 100 M4 x 40mm Slotted Flat Head Brass Wood Screws, designed for high strength and durability. These screws are made of brass, ensuring corrosion resistance and long-lasting reliability. Technical specifications Screw Dimension: M4 x 40mm (Thread Diameter x Total Length) Head Type: Slotted Flat Head Package Content: 100 pcs x Wood Screws Usage Flat head screws are ideal for applications where a flush surface is required after installation. Self-tapping feature allows these screws to penetrate wood products without the need for pre-drilling. Commonly used in woodworking, construction, industry, and marine applications. Other information Please wear gloves to protect your hands when working. Please allow a measurement difference of 0.1mm-1mm due to manual measurement.