Holo-krome 12008 Socket Pressure Plug 3/8-18 Alloy Steel

Product Description

The HOLO-KROME 12008 is an alloy steel socket pressure plug designed to seal threaded ports in hydraulic, pneumatic, and fluid system applications. With a 3/8-18 thread size and an overall length of 13/32 inches, this compact plug is suited for tight-clearance installations where a low-profile seal is required. The 5/16-inch hex key drive allows installation with a standard Allen wrench, and the 7/8-inch taper per foot thread geometry provides a reliable pressure-tight fit. Installed by plumbers, hydraulic technicians, and industrial maintenance professionals, this plug is a standard hardware item for port sealing in fluid power and piping systems.

The HOLO-KROME 12008 is used in residential and commercial plumbing, hydraulic manifolds, pneumatic systems, and fluid distribution equipment wherever a threaded port requires a secure, pressure-rated closure. The small overall length and socket-drive head make it practical in recessed or obstructed port locations. It is a common item in maintenance and repair work on pumps, valves, cylinders, and fluid control assemblies.

Key Features

• 3/8-18 thread size for standard NPT port sealing
• 13/32 inch overall length suits tight-clearance and recessed port locations
• Alloy steel construction for strength in pressure applications
• 5/16 inch internal hex drive for installation with a standard Allen wrench
• 7/8 inch taper per foot thread geometry promotes leak-free seating

Compatibility

Designed as a standard-style socket pressure plug for 3/8-18 NPT threaded ports in hydraulic, pneumatic, and fluid piping systems.

Installation Notes

Installation is performed by licensed plumbers, hydraulic technicians, or qualified maintenance personnel. Depressurize and drain the system completely before removing or installing any pressure plug. Use an appropriate thread sealant or tape on NPT threads as required by the application and local codes. Do not overtighten; seat the plug firmly using a 5/16 inch hex key until a pressure-tight fit is achieved.