Amazon.com : Anwenk 1/4 to 3/8 Screw Adapter Converter Threaded Screws Adapter Spigot Screw Mount Set for Camera Tripod Monopod Ballhead Flash Light Stand Shoulder Rig : Electronics
Set Screw Prop Adapter 8.0mm Input-3/8x24 Output Multi-Colored - Walmart.com
Rod Adapter with set screw
Amazon.com: SMALLRIG Camera Screw Adapter Set, Screw Ratchet Wingnut Set with 1/4", 3/8", M5 and M6 Screws, for Camera Cages, Plates, Handles and Other Photographic Accessories - 3995 : Electronics
1/8* Set Screw Tap Socket Adapter Square Driver 1/4 Hex-Shank Thread Tap Tools - Walmart.com
SC-314 Apex 7/16'' Square Drive Bit Holder Adapter, With Set Screw Pin
SC-108 Apex Bit Holder Adapter, 1/4'' Square Drive With Set Screw Pin - MRO Tools
Bridgeport 508-DC2 - 3/4" Set Screw Connector
Amazon.com: Camera Screw Mount Set, PAMOWO 26Pcs 1/4 Inch and 3/8 Inch Converter Threaded Screws Adapter Flash Shoe Mount for DSLR Camera/Tripod/Monopod/Ballhead/Flash Light/Quick Release Plate : Electronics
SC-520 Apex 5/8'' Square Drive Bit Holder Adapter, With Set Screw Pin
SDA-100 | Step Down Adapter - Set Screw, SDA Series (Inch) | Climax Metal Products | MISUMI
1set Male To Female Screw Adapter 1/4" 3/8" Mount Set Thread Screw Adapters Convert For Camera Tripod Light Stand - Tripod Monopods - AliExpress
Set Screw Prop Adapter 4.0mm Input/1/4x28 Output Multi-Colored - Walmart.com
Amazon.com : Anwenk 1/4 to 3/8 Screw Adapter Converter Threaded Screws Adapter Spigot Screw Mount Set for Camera Tripod Monopod Ballhead Flash Light Stand Shoulder Rig : Electronics
Amazon.com : Neewer Camera Screw Kit, 16 Pieces Tripod Screw Adapter Converter Spigot Screw Mount Pack (1/4" to 1/4", 1/4" to 3/8", Female to Male, Male to Male, etc) for Camera/Tripod/Flash/Stand/Mic/Rig/Cage :
1/4" To 3/8" Mount Set Male to Female Screw Adapter Thread Screw for Camera Ligh | eBay
Amazon.com : Anwenk 1/4 to 3/8 Screw Adapter Converter Threaded Screws Adapter Spigot Screw Mount Set for Camera Tripod Monopod Ballhead Flash Light Stand Shoulder Rig : Electronics
Down River Equipment
TOPAZ 632 3/4IN EMT SS CONN 25/250PK | Gordon Electric Supply, Inc.