MOPED ARMY

ouch over a $1 a bolt.

The 5mm drive with low profile head drives the price up, and I think is hard to find- I think even McMaster has to order them as it shows a 1-3 week delivery. And of course black oxide would be cheaper than stainless and zinc.

Stainless steel should never be used to torque into aluminum. It galls the threads and can cause corrosion as well. I recommend zinc plated where they’re exposed and black oxide inside the cases where they get an oil bath.

I have made some edits to the above list taking into consideration the above input from others. Also I removed the low profile heads as there looks to be plenty of clearance. Also added was Flywheel cover bolts. McMaster numbers are included but it would cost $37 to order from there as you would receive a total of 170 bolts since they are all sold in packs of 10 or 50.

All have a drive size of 5mm, this is the largest for maximum strength.

2x 35mm Black Oxide M6 x 1mm (97050A229) : Internal Case Bolts

4x 35mm Zinc Plated M6 x 1mm (90128A267) : Flywheel Cover Bolts

4x 40mm Black Oxide M6 x 1mm (91290A203) : Internal Case Bolts

6x 40mm Zinc Plated M6 x 1mm (90128A268) : Clutch Cover Case Bolts

4x 50mm Zinc Plated M6 x 1mm (90128A269) : External Case Bolts

I had to look up what galvanic corrosion is and found this on the Wikipedia entry:

Lasagna cell Edit

A "lasagna cell" is accidentally produced when salty moist food such as lasagna is stored in a steel baking pan and is covered with aluminum foil. After a few hours the foil develops small holes where it touches the lasagna, and the food surface becomes covered with small spots composed of corroded aluminum.[14] In this example, the salty food (lasagna) is the electrolyte, the aluminum foil is the anode, and the steel pan is the cathode. If the aluminum foil only touches the electrolyte in small areas, the galvanic corrosion is concentrated, and corrosion can occur fairly rapidly. If the aluminum foil was not used with a dissimilar metal container, the reaction was probably a chemical one. It is possible for heavy concentrations of salt, vinegar or some other acidic compounds to cause the foil to disintegrate. The product of either of these reactions is an aluminum salt. It does not harm the food, but any deposit may impart an undesired flavor and color.[15]