M3 Washers, in various packs, no mixed packs.
OD is +/- 0.2mm on all and varies batch to batch if you want a very specific OD closer than within 0.2mm please ask and I’ll check current batch for you.
You can choose from the below washer packs..,
The screws, nuts and washers are all in theory Stainless Steel, but they are from China and I'm not a metalerg..metaluhr...metalero... expert in metals so don't rely on that.
All of our products are shipped from Christchurch, New Zealand using CourierPost for NZ, and Airmail for international.