Vargus 58983 Laydown Threading Insert 4 Tpi Solid Carbide

Product Description

The VARGUS 58983 is a solid carbide laydown threading insert designed for external UN thread cutting at 4 threads per inch (TPI). It carries a TiAlN coating applied via PVD process, which builds surface hardness and heat resistance for demanding threading operations. The insert features a 60-degree included angle, a 15.88 mm (0.625 inches) inscribed circle, and a 6.35 mm thickness. Right-hand orientation makes it compatible with standard external threading setups on CNC lathes and turning centers. This is a precision cutting tool intended for use by machinists and tooling specialists in production and job-shop environments.

The VARGUS 58983 is suited for external UN thread profiles per ANSI B1.1:74 on a wide range of workpiece materials. The universal primary workpiece material designation covers material groups H, K, M, N, P, and S, meaning it handles carbon steels, alloy steels, stainless steels, cast irons, non-ferrous metals, and high-temperature alloys. Typical applications include threading on shafts, fastener blanks, hydraulic fittings, and other cylindrical components requiring UN-standard external threads. It is a single-tooth insert in the 5ER style within the standard series.

Key Features

• Solid carbide substrate with TiAlN PVD coating for extended tool life and heat resistance
• 4 TPI external UN thread profile conforming to ANSI B1.1:74
• 60-degree included angle standard for UN thread forms
• Universal material compatibility across ISO material groups H, K, M, N, P, and S
• Right-hand cut, 5ER insert style, standard series
• Inscribed circle of 0.625 inches (15.88 mm) and thickness of 6.35 mm for precise seating in compatible toolholders

Compatibility

Designed for use in 5ER-style laydown threading toolholders configured for external UN thread cutting. Conforms to ANSI B1.1:74 and is manufactured under ISO 9001:2008 quality standards.

Installation Notes

Installation should be performed by qualified machinists following the toolholder manufacturer's clamping specifications. Power down and lock out the machine before seating or replacing the insert. Ensure the insert pocket and clamping surfaces are clean and free of debris before seating. Verify insert orientation and thread hand before resuming cutting operations.