Irwin Hanson 1116ZR #5-40 NC Plug Machine Screw Tap High Carbon Steel

The Irwin Hanson 1116ZR is a #5-40 UNC plug-style machine screw tap constructed from high carbon steel (HCS). Designed for hand threading work, this tap cuts clean, accurate internal threads in a wide variety of materials and is ideal for general-purpose threading, routine maintenance, repair work, and rethreading applications.

Key Features:

• Thread Size: #5-40 UNC (SAE, coarse thread)
• Chamfer Type: Plug — 3 to 5 threads chamfered for easy alignment and starting in through holes or blind holes
• Flutes: 3 precision ground straight flutes for rapid chip removal and efficient threading
• Shank: Straight shank with square drive head — compatible with Hanson T-handle tap wrenches or machine use (lathe, drill press)
• Material: High carbon steel (HCS) construction
• Thread Class Produced: Class 2B
• Etched markings: Tap size and recommended drill bit size etched on each tool for easy identification
• Made in USA

The plug chamfer style makes the 1116ZR the most versatile and commonly used tap for both hand and machine threading. Sold as a 5-piece bulk pack, it's a practical choice for shops, maintenance professionals, and hobbyists who frequently work with #5-40 fasteners. Can be paired with a Hanson T-handle tap wrench (sold separately) for manual operation.