OSG Spiral Point Tap: #4-40 UNC, H5 / 2B, 2 Flute, Plug Chamfer (MPN 2816408)
SKU 3G-OTH-214028
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Frequently Asked Questions
What is OSG spiral point tap #4-40 UNC used for?
OSG spiral point taps are designed for through-hole threading in production machining. The #4-40 UNC size with plug chamfer and 2-flute design pushes chips forward, reducing chip clogging in steel, aluminum, and cast iron applications.
What are the specifications of OSG tap MPN 2816408?
The OSG spiral point tap MPN 2816408 is #4-40 UNC thread size, H5 tolerance for 2B class fit, 2-flute design with plug chamfer. It is a general purpose tap for through-hole threading in ferrous and non-ferrous materials.
Where to buy OSG 2816408 taps worldwide?
3G Electric supplies OSG 2816408 spiral point taps worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other OSG tooling.
How to select the right tap for #4-40 UNC threads?
For #4-40 UNC through-holes, a spiral point tap like OSG 2816408 is ideal as it pushes chips forward. Ensure the tap drill size matches the thread class (2B). Use cutting fluid appropriate for the workpiece material to extend tool life and achieve clean threads.
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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.















