Steel Adapter Fitting, 1/8 Inch Male to 1/4 Inch Male NPT
Amazon.com: VCE 1/4" to 1/8" Adapter, 3.5mm 1/8 inch Male to 6.35mm 1/4 inch Female Audio Jack Gold Plated Adapter for Amplifiers, Guitar, Home Theater Devices, Laptop, Headphones - 8 inch : Electronics
Pressure Gauge Adapter, 1/8 BSP Male & Female, 1/8 NPT F Tee - Pegasus Auto Racing Supplies
NANYI 1/4'' Male to 1/8'' Female Stereo Headphone Adapter Connect Cable, Upgrade 6.35mm Jack Stereo Socket Male to 3.5mm Jack Stereo Plug Female for Headphone, Amp Adapte, Black 1-Pack - Walmart.com
Brass Adapter, Male (1/8-27 NPT), Female (1/4-18 NPT) – AGS Company Automotive Solutions
Thread Adaptor 3/8 x 24NF – 1/8 x 27NPT | BrakeConnect
Amazon.com: NANYI 1/4 Inch Female to 1/8 Inch Male Stereo Headphone Adapter, Upgrade 6.35mm Jack Stereo Socket Female to 3.5mm Jack Stereo Plug Male for Headphone, Amp Adapte, Black 1-Pack : Electronics
FITTING, ADAPTER, METRIC, M10X1 MALE TO 1/8" NPTF FEMALE, BRASS
Festo - AD-G1/8-1/8NPT-I - Thread Adapter, 1/8 ISO G male to 1/8 NPT female, zinc pl steel - RS
On-stage Wha4500 1/8" To 1/4" Trs Adapter : Target
Comprehensive Stereo 1/4" Male to Stereo 1/8" (3.5mm) SPP-MJS
Amazon.com: Cable Matters 5-Pack 1/4 to 1/8 Headphone Adapter, 6.35mm to 3.5mm Adapter Male to Female, Gold Plated Stereo Headphone 3.5mm to 1/4 Adapter : Everything Else
Earl's 961604: Steel AN to Pipe Adapter Fitting -4AN To 1/8" NPT - JEGS
LTWFITTING 1/4 in. FIP x 1/8 in. MIP Brass Pipe Adapter Fitting (5-Pack) HF1024205 - The Home Depot
Sennheiser Universal 1/8" to 1/4" Headphone Adapter 549346 B&H