Thank you for the updated quotation. I previously advised you that Item #4 would not be required but these will be required to allow manufacture as the housings will have to be dowelled prior to machining. Apologies for that.We don’t have a drawing for these dowel pins but the description is as follows: METRIC DOWEL PIN, HARDENED AND PRECISION GROUND PER ISO 8734 A20 MM DIAMETER x 50 MM LONG – DIAMETER TOLERANCE – M6HARDENED STEEL, 52-58 HRC Please add Item 4 to the quotation (Total Qty required = 32) Regards