Amazon.com: Mic Stand Adapter 3/8 to 5/8 Screw Adapter 3/8" to 5/8" Male to Female+ Female to Male Microphone Stand Adapter Mic Mount Camera Monitor Tripod Conversion Connector Screw,Combo Pack,2Pieces : Musical
Proline Series 5/8-in x 3/4-in Threaded Union Fitting in the Brass Fittings department at Lowes.com
K&M 217 Microphone Thread Adapter - 3/8 Inch Female to 5/8 Inch Male | Location Sound
Amazon.com: On-Stage MA-300 5/8" Male to 3/8" Female Knurled Mic Screw Adapter, 2 Pieces : Musical Instruments
K&M 215 Thread Adapter - 1/2" and 3/8" Female to 5/8" Male | Sweetwater
Brass Adapter Male 3/8" Pipe To Female 5/8-18 Inverted Flare – Inline Tube
Gitzo 3/8” to 5/8” adapter - G1145 | Gitzo US
Adapter, 5/8"-11 UNC to 3/8"-16" - 07769 | Weiler Abrasives