Common hardware Table 34. Hardware table Table 35. Common torque values C8523-90921 Introduction 247 Example Description Sizes Uses Screw M3 by 6 mm M3 by 8 mm M4 by 8 mm M4 by 10 mm Screw, tapping M3 by 6 mm M3 by 8 mm M3 by 30 mm M4 by 6 mm M4 by 12 mm To hold plastic to metal (excluding the MFP control panel) Screw, pan head M3 by 6 mm To hold plastic to plastic Screw, w/washer M3 by 6 mm M3 by 8 mm M3 by 7 mm M4 by 6 mm M4 by 12 mm To hold plastic to metal (excluding the covers) Material HP recommended torque value Plastic to metal 5.5 lb-inch Metal to metal 10 lb-inch PCBA 5.5 lb-inch Plastic to plastic 5.5 lb-inch