Balax 13109-000 Thread Forming Tap 5/16-18 Unc Plug Hss

Product Description

The BALAX 13109-000 is a thread forming tap designed for cutting 5/16-18 UNC internal threads in through-hole applications. Unlike cutting taps, this forming tap displaces material rather than removing it, producing stronger threads with no chips to clear. Built from high-speed steel with a bright uncoated finish, it carries a plug chamfer with 4 chamfered threads for easy starting alignment. The H9 thread limit ensures consistent Class 2B fit tolerances on production and repair work. This tap is suited for use in ductile metals and softer alloys where cold-forming is practical. Licensed machinists, millwrights, and maintenance technicians are the primary users.

The 13109-000 is configured for through-hole threading in production machining, maintenance, and repair environments. Its right-hand thread direction and plug chamfer make it a standard choice for general-purpose tapping operations on 5/16-18 UNC fastener applications. The BXP series designation indicates it is part of BALAX's thread forming line, optimized for chipless threading in appropriate workpiece materials. It is compatible with standard tap handles and CNC tapping operations using appropriate tapping fluid.

Key Features

• Thread forming design displaces material for stronger, chip-free internal threads
• 5/16-18 UNC plug chamfer with 4 chamfered threads for guided starting
• High-speed steel construction for durability in production tapping
• H9 thread limit for Class 2B fit compliance
• Single oil groove supports lubrication delivery during forming
• Right-hand thread direction, through-hole application

Compatibility

Designed as an OEM-style replacement or direct-use thread forming tap for 5/16-18 UNC through-hole applications in ductile workpiece materials. Part of the BALAX BXP series.

Installation Notes

Thread forming taps require proper tapping fluid or cutting oil matched to the workpiece material - dry tapping will shorten tap life significantly. Ensure the tap is driven with a calibrated torque handle or CNC tapping cycle to avoid overload. Secure the workpiece before tapping and verify the pilot hole diameter meets the recommended size for Class 2B thread forming. This tap is intended for use by qualified machinists or maintenance technicians familiar with thread forming practices.