Husky 1/4 and 3/8 in. Drive Adapter Set (3-Piece) HADPTR3PC - The Home Depot
Threading Adapter, NPT 1/4 Male to NPT 3/8 Female
Auray 5/8" Male to 3/8" & 1/4"-20 Female Combo AD-COMBO-S B&H
1/4'' to 3/8'' screw thread converter-adapter | TeleprompterPAD.com
3/8" Drive Male x 1/4" Hex Male Socket Adapter - 2" - IWAF26238B10 | Mac Tools
Parker Expander Adapter 3/8 in NPT x 1/4 in NPT Brass FG-B-3/8X1/4
Midanya 1/4-Inch Female Pipe x 3/8-Inch Male Brass Pipe Fitting Reducer Adapter Air Hose Adapter Metal Pipe Adapter, 2 Pieces (1 Pair) - Amazon.com
CRAFTSMAN 3/8-in to 1/4-in Standard Socket Adapter in the Socket Adapters department at Lowes.com
3814ADA, 3/8" Female to 1/4" Male Adapter - Triad Orbit
Amazon.com: Niewalda 1/4 Inch Male to 3/8 Inch Female Tripod Screw Adapter 3 /8 to 1/4 Tripod Adapter Mount Screws, Accessories for Camera/Tripod/Monopod/Light Stand : Electronics
Amazon.com : Camera Screw Adapter Thread 1/4" Male to 3/8" Female and 3/8" Male to 1/4" Female Adapter Set for Camera Monitor, Tripod, Mount : Electronics
Everbilt 1/4 in. OD Compression x 3/8 in. Flare Brass Adapter Fitting 800779 - The Home Depot