Insert Design Part No.: 338M2.5 Thread Size: M2.5 Pitch (internal): 0.45 Pitch (external) P: 1.06 Diameter (external) B: 4.33 Head Thickness T: 0.60 Head Diameter D: 6.35 Length L: 5.25 Hole Design Hole Diameter C: 3.8-4.1 Hole Depth Y: 5.8 Boss Diameter X: 7.2 Wall Thickness W: 1.55 Pin Design øH tolerances ± 0.0125