Johnson bananstik
M3 Snap In PC Mount-Terminal Only P/N 7790 https://www.keyelco.com/product.cfm/product_id/1108
The data sheet at KeyElCo.com shows the mounting hole size and spacing.
Mouser has it https://www.mouser.com/ProductDetail/534-7790
… although it’s cheaper to buy with a screw and straight legs https://www.mouser.com/ProductDetail/534-7761