Insert Design Part No.: 240M4 Thread Size: M4 Pitch (internal): 0.70 Pitch (external) P: 2.31 Diameter (external) B: 7.10 Head Thickness T: 0.50 Head Diameter D: 7.10 Length L: 11.00 Hole Design Hole Diameter C: 5.70-6.50 Hole Depth Y: 12.10 Boss Diameter X: 16.30 Wall Thickness W: 4.90