30 Sets 1/4-20 x 3/4" Furniture Screw Threaded Wood Inserts, Screw-in Black

Steel 1/2" NPT Weld On Stepped Bung Female Nut Threaded Weldable .5 in.

Rock Jock CUECE-9113BJNL 1IN JAM NUT LEFT HAND THREAD FOR THREADED BUNG

Rock Jock CUECE-9113BJN 1IN JAM NUT RIGHT HAND THREAD FOR THREADED BUNG

AEROQUIP FCM3686 1/4 in NPT Aluminum Pipe Plug with Allen Head, Blue Anodized

Threaded Weld Bung 3/4in RH - 1in OD .083 Wall

HUSSMANN BUSHING-REDUCER 1 1/4 X 1 IN

Radium Engineering 14-0172 1/8in NPT Aluminum Plug for Automotive Use