These washers (except M10) are not stainless steel. They are strongly attracted to a magnet, like ordinary steel. Stainless steel is not magnetic. Stainless steel refrigerators have a steel plate behind the door that you can attach magnets to. Maybe they have some kind of stainless steel washer in the kit, they claim stainless steel washers. Test them yourself and judge.
π· Fermtech Double Blast Wine Rinser & Beer Bottle Washer β Kitchen, Lab, Bar Glass Cleaner with Laundry Tub Faucet Adapter (Black) β Wine Cleaning Equipment for Better Maintenance
18 Review
π© FullerKreg 5/8" x 1-3/4" OD Stainless Flat Fender Washers, 1-3/4" Outside Diameter, 0.120" Thickness, 6 Pack, 18-8 (304) Stainless Steel
13 Review
Creative Pebble V3 Minimalistic 2.0 USB Type-C Desktop Speakers with USB Audio, Clear Dialog Enhancement, Bluetooth 5.0, 8W RMS + 16W Peak Power, USB Adapter Included (Black)
8 Review
β¨ Alleviate Eye Fatigue with ANRRI's Featherweight Anti-Blue Light Glasses
4 Review
Highly π Sought-After Fastener: Connector 014973445713
9 Review
π© Hard-to-Find Quick Fastener 014973253790 - 4 Piece Set
7 Review
πͺ Strong and Versatile: National Hardware N222 406 Square Bolts for Secure Fastening
7 Review
π© 5-Pack of M8x60mm Stainless Steel External Hex Expansion Bolts by Yasorn
10 Review