9440 Hexagon Fractional Die, 7/16-20 NF Thread, HCS

The Irwin 9440 is a 1-inch hexagon fractional die designed for hand threading work on bolts, rods, machine screws, and other fasteners. This high carbon steel die creates or repairs 7/16-20 National Fine threads, making it ideal for routine maintenance, repair work, and rethreading applications where you need reliable results. Whether you're a professional tradesperson or a serious DIYer, this die handles the threading tasks that keep equipment and projects running smoothly.

The hexagonal design and compact 1-inch size make installation, removal, and operation straightforward. You can use it with a wrench or socket in tight spaces, or pair it with a hexagon die stock for better leverage and control. The high carbon steel construction delivers the toughness needed for repeated use across a variety of materials and threading situations.

Features and Benefits

• 1-Inch Hexagon Design: Simple to install, remove, and turn; works with a wrench, socket, or hexagon die stock.
• High Carbon Steel (HCS) Construction: Durable material built for professional and DIY threading work across multiple materials and applications.
• 7/16-20 National Fine Thread: Creates or repairs National Fine threads for machine screws and fasteners.
• Space-Saving Compact Size: Works in confined areas where full-size threading tools won't fit.
• Versatile Applications: Ideal for maintenance, repair work, and rethreading on a variety of materials.

Specifications

• Brand: Irwin
• Model: 9440
• Thread Size: 7/16 inch
• Thread Type: 20 National Fine (NF)
• Thread Direction: Right hand
• Hex Size: 1 inch
• Material: High carbon steel (HCS)