OSG Spiral Point Tap: #4-40 UNC, H5 / 2B, 2 Flute, Plug Chamfer
The OSG Spiral Point Tap (#4-40 UNC, MPN 1216401) is a general purpose spiral-point tap with an H5 / 2B tolerance, 2-flute design, plug chamfer, and black oxide high speed steel construction. 3G Electric interprets…
SKU 3G-OTH-215123
Need installation or engineering help?
Ask a question
Product Description
The OSG Spiral Point Tap (#4-40 UNC, MPN 1216401) is a general purpose spiral-point tap with an H5 / 2B tolerance, 2-flute design, plug chamfer, and black oxide high speed steel construction. 3G Electric interprets this demand and sources the exact OEM-specified tool, backed by specialist expertise across 14 industrial departments — including machining — to ensure the right solution for your threading application.
Frequently Asked Questions
What is the OSG spiral point tap #4-40 UNC used for?
The OSG spiral point tap #4-40 UNC is used for threading through holes in metal and plastic components. Its spiral point design pushes chips forward, making it ideal for high-speed production tapping in automotive, aerospace, and general manufacturing applications.
What are the specifications of the OSG spiral point tap #4-40 UNC?
The OSG spiral point tap has a #4-40 UNC thread size, H5 / 2B tolerance, 2 flutes, plug chamfer, and black oxide high speed steel construction. The manufacturer part number is 1216401. It is designed for general purpose through-hole tapping.
Where to buy OSG spiral point tap #4-40 UNC worldwide?
You can source the OSG spiral point tap #4-40 UNC worldwide through 3G Electric. We handle full logistics, customs clearance, and delivery to global destinations. Contact us for availability and lead time on this and other OSG taps.
How to select the correct OSG spiral point tap for through holes?
Select an OSG spiral point tap for through holes by matching thread size (e.g., #4-40 UNC), tolerance class (H5 for 2B), and chamfer type (plug for general use). Ensure the tap material suits the workpiece—black oxide HSS works for steel and aluminum. OSG taps are precision-ground for consistent thread quality.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG general purpose spiral-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
