Eagle Cutting Tool HT-540-P-I Hss Hand Plug Tap 5-40

Product Description

The EAGLE CUTTING TOOL HT-540-P-I is a 5-40 high-speed steel (HSS) hand plug tap designed for cutting internal threads in metal workpieces. The plug chamfer — typically 3 to 5 threads — allows the tap to start easily in through holes or blind holes with adequate depth clearance. HSS construction provides the hardness and wear resistance needed for threading ferrous and non-ferrous materials by hand. Machinists, maintenance technicians, and toolmakers reach for this tap when cutting or repairing 5-40 unified coarse threads in production or field repair settings.

The HT-540-P-I is suited for hand tapping applications where a 5-40 thread form is required. The 5-40 designation indicates a No. 5 screw size with 40 threads per inch, a thread size commonly encountered in instrument work, light-duty fastener assemblies, and precision mechanical components. It is appropriate for use in shop environments and in the field by trades that regularly work with small-diameter fasteners.

Key Features

• HSS construction for hardness and wear resistance across ferrous and non-ferrous materials
• Plug chamfer geometry eases entry into through holes and sufficiently deep blind holes
• 5-40 thread form for No. 5 screw size at 40 threads per inch
• Hand tap configuration for use with a standard tap wrench or T-handle
• Lightweight at 0.31 pounds for easy handling and portability

Compatibility

Designed as a hand plug tap for cutting 5-40 unified internal threads in compatible workpiece materials. Confirm workpiece material and pre-drill size against standard 5-40 tap drill charts before use.

Installation Notes

A licensed machinist or qualified technician should select the correct tap drill size before threading operations. Secure the workpiece firmly before tapping and apply cutting fluid appropriate to the workpiece material to extend tap life and improve thread quality. Use a calibrated tap wrench and advance with a back-and-forth motion to break chips and reduce the risk of tap breakage. Inspect the tap for wear or chipping before each use.

Technical Specifications

• Thread Size: 5-40
• Tap Type: Hand Plug Tap
• Material: High-Speed Steel (HSS)
• Weight: 0.31 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: HT-540-P-I