DELIGO RC420/100 Slotted Pan Head Machine Screws Brass M4 x 20mm Self Color\n- Brass Screw with nuts.- Thread Metric Coarse.- Cheese Slotted Machine Screws DIN84.- Hanging Packs (100s).- Finish Self Color.\nMachine screws are either used with a nut or driven into a tapped hole and are intended for use with a slotted screwdriver. They usually have a flat end with no point and a relatively fine thread and are fully threaded and intended for pre-prepared threaded holes. Machine screws are ideal for holding pieces of machinery together in all types of machines such as electronics, engines, and industrial manufacturing equipment. They are also commonly used for fastening machine components, appliances, etc. The slotted countersunk head is used on screw products where a flush fit is required on the surface e.g. door hinges and timber joinery or into steel applications.\nFeatures:\n- Material: Brass.- Thread: Metric Coarse.- Gauge: M4.- Length: 20mm.- Size: M4 x 20mm.- Type: Slotted Pan Head.- Brand: DELIGO.- Screw Head Style: Pan Head Slotted.- Pack of 100 screws.- Thread diameter 4mm.- Thread pitch 0.7mm.- Head diameter 8mm.- Head height 2.4mm.