Amazon.com: CAMVATE 1/4" Female to 3/8" Male & 3/8"-16 Female to 1/4"-20 Male Screw Adapter for Tripod and Camera and Qr Plate/Adapter Brass - 0910 : Electronics
NICEYRIG 1/4 Inch Camera Quick Release Screw Tripod Screw Adapter Connecter DSLR Camera Rig Accessories,Screws
Monoprice Screw Thread Adapter For Microphone Stand (5/8in Male To 3/8in Female) : Target
CAMVATE 1/4"-20 Female to 3/8"-16 Male Screw Adapter C0979 B&H
1/4-20 Adapter – MagnetMod
QHYCCD Small Screw Adapter (020063) - Cyclops Optics
CAMVATE 5/8''-27 Male To 1/4''-20 Female Screw Adapter For Microphone Stand (2 Pieces)
Camera and Tripod 3/8 to 1/4 Adapter Screw : ID 2392 : $1.50 : Adafruit Industries, Unique & fun DIY electronics and kits
On-Stage Mic Screw Adapter | Guitar Center
Double Stage Screw Adapter (2" Peg)
On-Stage MA200 5/8" Male to 3/8" Female Mic Screw Adapter MA200
1/4 to 1/4 Screw Adapter - For Camera / Tripod / Photo / Video : ID 2632 : $1.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com : CAMVATE 1/4" Male to 1/4" Male & 1/4" Male to 3/8" Male & 3/8" Male to 3/8" Male Thread Screw Adapter for Camera Tripod - 1230 : Electronics