Need close up pic of the lug, interior of the lug, the boss and top of lug from inside, and what fasteners are used. There are variations to the Beavertail lug. You would be wanting the correct one. Also, helpful is what year was your snare built?
Bantam throw off, which would have been on a 60s Rogers R360 Yamaha built steel shell with the Rogers design duplex lugs. A nice throw.