Fibre-metal 69029108993 Square Head Plug 1-1/4 in

Product Description

The FIBRE-METAL 69029108993 is a 1-1/4 inch square head plug fitting manufactured to ASTM A105 carbon steel standards. Square head plugs are used to close off threaded pipe openings in pressurized piping systems. The external male threads engage a female-threaded fitting or pipe end, and the square drive head allows a wrench to apply full seating torque without rounding. A105 carbon steel construction makes this plug suitable for high-pressure and elevated-temperature service common in industrial and mechanical piping. Plumbers, pipefitters, and mechanical contractors install these fittings during system assembly, pressure testing, and port isolation work.

This plug fitting is used in threaded piping systems where a port, branch outlet, or unused opening must be sealed. Typical applications include dead-end closures on headers, isolation of unused tee branches, and blanking of test ports in steam, water, gas, and oil piping systems. The 1-1/4 inch size addresses mid-range pipe diameters common in commercial mechanical and light industrial installations.

Key Features

• 1-1/4 inch nominal size for mid-range threaded pipe connections
• ASTM A105 carbon steel construction rated for high-pressure and elevated-temperature service
• Square head drive allows full wrench engagement for proper torque application
• Male NPT threads seal threaded female fittings and pipe ends
• Suitable for steam, water, gas, and oil piping applications

Compatibility

Designed as an OEM-style threaded plug for 1-1/4 inch female NPT threaded fittings and pipe ends in standard carbon steel piping systems.

Installation Notes

Installation is performed by licensed pipefitters or plumbers in accordance with applicable mechanical and piping codes such as ASME B31.1 or B31.3. Depressurize and isolate the piping system completely before installing or removing any threaded plug. Apply appropriate thread sealant or PTFE tape to the male threads before seating. Use a wrench on the square head to achieve proper engagement without overtightening, which can crack fittings or damage threads.

Technical Specifications

• Size: 1-1/4 inches
• Material: A105 Carbon Steel
• Head Type: Square Head
• Thread Type: Male NPT

Standard Information

• Brand: FIBRE-METAL
• Manufacturer Part Number: 69029108993