Complete disassembly for PW Arms AR-12 shotgun (this shotgun is shown in the video). Upon further research the MKA 1919 should come apart the exact same way.
In this video, one of our resident fastener specialists showcases countersunk finishing cup washers, the types and materials they are made out of, and how to install them.
Finishing cup washers are intended to work with countersunk screws, such as oval and flat head screws, to provide a nice flush finish with the screw head. They are also easy to install, providing many finishing options for your application.
18-8 Stainless Steel Finishing Cup Washers: https://www.albanycountyfasteners.com/Finishing-Cup-Washers-18-8-Stainless-Steel-p/110000.htm
316 Stainless Steel Finishing Cup Washers:
https://www.albanycountyfasteners.com/Finishing-Cup-Washers-316-Stainless-Steel-p/12320.htm
Solid Brass Finishing Cup Washers: https://www.albanycountyfasteners.com/Brass-Finishing-Cup-Washers-p/12322.htm
Silicon Bronze Finishing Cup Washers: https://www.albanycountyfasteners.com/Silicon-Bronze-Finishing-Cup-Washers-p/12328.htm
For all your other fastener needs, please visit us: https://www.albanycountyfasteners.com
For more Fasteners 101 information, please visit our website here: https://www.albanycountyfasteners.com/Fastener-Education-and-Information-s/1128.htm