Gibraltar swivel nuts fit into the lug casing and physically receive the treaded tension (key) rod. When a tension rod can no longer be turned and is stripped it is usually the swivel nut that is the stripped part and needs replacement. 7/32 - Fits tom and snares for Pearl CB Mapex Tama Ludwig Gretsch Premier Pacific and most other manufacturers with the exception of Sonor. Fits DW drums prior to 1996 production. 12-pack.