NPT Bolt Plugs

Low-profile closure for tapered ports that need to disappear.

Systems evolve, ports get orphaned, and every open one is a leak or a contamination path. The Finish Line Factory NPT Bolt Plugs closes an open female NPT port, sealing on the taper with sealant, in 1/2" NPT, 1/4" NPT, 1/8" NPT, 3/4" NPT, 3/8" NPT. Machined to the same standard as the fittings it replaces, so sealed-off reads as designed-that-way.

Benefits

• Orphaned ports become finished surfaces instead of liabilities
• The taper bites progressively until it's plainly sealed
• Future expansion stays one plug-removal away
• The system holds pressure with no asterisks

Features

• Sizes: 1/2" NPT, 1/4" NPT, 1/8" NPT, 3/4" NPT, 3/8" NPT
• Seals female NPT ports on the tapered thread
• Low-profile socket-drive bolt style
• Prevents fluid leakage from exposed areas
• Sold individually

The Details

Sealing a port correctly means sealing it the way its standard seals: NPT plugs are tapered joints, so they take sealant off the lead thread and progressive torque, never a second full turn past snug. Caps and plugs also star during builds: sealing systems for pressure testing, keeping debris out of finished plumbing, and closing lines during transport. A handful in the drawer is standard equipment.

Kit Includes

• 1x NPT Bolt Plugs (size per your selection)

Applications

• Sizes: 1/2" NPT, 1/4" NPT, 1/8" NPT, 3/4" NPT, 3/8" NPT
• Common uses: sealing unused rail and pump ports, blanking deleted lines, pressure testing, protecting fittings in storage and transport