3/8"-24 O-Ring Boss Plug - Fisher & Western 92960 | Mill Supply, Inc.
Parker - Industrial Pipe Hex Socket Plug: 7/8-14 Male Thread, Male Straight Thread O-Ring - 72518186 - MSC Industrial Supply
FISCHER 500403 Metal wall plug with ring hook SBS 8/3 | Mister Worker®
5/8" Hex Head Plug, Straight Thread O-ring, Hose Adapters - Hi-Line Inc.
Amazon.com: 64 Pcs. ORFS Cap & Plug Assortment Kit, Seal Adapter Set for Hydraulic Hose Tube and Pipe, O-Ring Face Seal Fittings, Galvanized Carbon Steel with Precision Threading, Dash Sizes 4 6
ED Sealing Ring Plug Outer and Inner Hexagonal Plug Oil Plug BSP Thread 1/8" 1/4" 3/8" 1/2" Bolt Oil Water Pipe Fitting Plug Cap
8-5/8" Buttress, Work Plug Gauge | Deterco
Alameda Plug Gages - 1 3/8-12 UNF - Quality Control Solutions, Inc.
AF 6409-10 - 5/8 Male O-Ring Boss Plug (7/8''-14 Threads) (4 Pack): Amazon.com: Industrial & Scientific
RING QUAD 8" END PLUG HRO/Sea R. - available at AquaControl Marine
8 ORB Plug - Male Allen Head Plug and O-Ring
10MFFOR-PLUG 5/8" Male Flat Face O-Ring Plug -10MFFOR-PLUG
ED Sealing Ring Plug Outer and Inner Hexagonal Plug Oil Plug BSP Thread 1/8" 1/4" 3/8" 1/2" Bolt Oil Water Pipe Fitting Plug Cap