WIDIA GTD Spiral Flute Tap: 7/16"-20 UNF, H3 / 3B, 3 Flute, Bottoming Chamfer
The WIDIA GTD Spiral Flute Tap (7/16"-20 UNF) is a high-speed steel, bottoming-chamfer tap with H3 / 3B tolerance and 3 flutes, designed for threading aluminum. 3G Electric interprets demand and delivers this genuine…
SKU 3G-OTH-232810
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Product Description
The WIDIA GTD Spiral Flute Tap (7/16"-20 UNF) is a high-speed steel, bottoming-chamfer tap with H3 / 3B tolerance and 3 flutes, designed for threading aluminum. 3G Electric interprets demand and delivers this genuine industrial tap across 14 departments, with specialist depth in combustion, pumps and controls as an authorised distributor.
Frequently Asked Questions
What is the WIDIA GTD spiral flute tap used for?
The WIDIA GTD spiral flute tap is designed for threading blind holes in aluminum and non-ferrous materials. Its spiral flute design evacuates chips upward, preventing clogging and ensuring clean threads. It is commonly used in automotive, aerospace, and general manufacturing applications where precise internal threading is required.
What are the specifications of the WIDIA GTD spiral flute tap?
This WIDIA GTD tap has a 7/16"-20 UNF thread size, H3 / 3B tolerance, 3 flutes, and a bottoming chamfer. It is made from high-speed steel (HSS) and is optimized for threading aluminum. The manufacturer part number is 16038, and the SKU is 53MK11.
Where to buy WIDIA GTD taps in worldwide?
You can source WIDIA GTD taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine WIDIA GTD tooling for manufacturing operations.
How to select the correct WIDIA GTD tap for aluminum?
For aluminum, choose a spiral flute tap with a bottoming chamfer to thread blind holes. Ensure the thread size (e.g., 7/16"-20 UNF) and tolerance class (H3 / 3B) match your application. High-speed steel construction provides durability. WIDIA GTD taps are engineered for chip evacuation and clean threads in non-ferrous materials.
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Common applications for WIDIA GTDWIDIA GTD Products
3G Electric supplies WIDIA GTD spiral-flute taps for aluminum. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.













