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WIDIA GTD Straight Flute Tap: 7/16"-20 UNF, H5, 4 Flute, Bottoming Chamfer - General Purpose Hand Taps
WIDIA GTDGeneral Purpose Hand Taps

WIDIA GTD Straight Flute Tap: 7/16"-20 UNF, H5, 4 Flute, Bottoming Chamfer

The WIDIA GTD Straight Flute Tap (7/16"-20 UNF) is a general-purpose hand tap with an H5 tolerance, bottoming chamfer, and 4 flutes, made from high-speed steel (MPN 14257). 3G Electric interprets this demand and…

SKU 3G-OTH-221815

Brand
WIDIA GTD
Item
Straight Flute Tap: 7/16"-20 UNF, H5, 4 Flute, Bottoming Chamfer
Category
General Purpose Hand Taps
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

WIDIA GTD
Manufacturer Part Number
14257
Type
H5, Bottoming Chamfer, High Speed Steel
Flute
4

Technical Documents

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WIDIA GTD Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WIDIA GTD Straight Flute Tap (7/16"-20 UNF) is a general-purpose hand tap with an H5 tolerance, bottoming chamfer, and 4 flutes, made from high-speed steel (MPN 14257). 3G Electric interprets this demand and sources the exact OEM-specified tool, supporting your machining operations across 14 industrial departments with specialist depth in cutting tools and controls.

Frequently Asked Questions

What is a WIDIA GTD straight flute tap used for?

A WIDIA GTD straight flute tap is used for cutting internal threads in pre-drilled holes. This 7/16"-20 UNF bottoming chamfer tap is ideal for through-hole or blind-hole threading in general machining, automotive, and industrial maintenance applications.

What are the specifications of the WIDIA GTD 14257 tap?

The WIDIA GTD 14257 is a 7/16"-20 UNF straight flute tap with an H5 tolerance, 4 flutes, and a bottoming chamfer. It is made from high-speed steel and is designed for general-purpose hand tapping in ferrous and non-ferrous materials.

Where to buy WIDIA GTD taps in worldwide?

3G Electric supplies WIDIA GTD taps worldwide. As a global industrial sourcing partner, we handle full logistics and customs clearance to deliver this 7/16"-20 UNF bottoming chamfer tap and other WIDIA cutting tools to your facility, regardless of location.

How to select the right tap for a blind hole?

For blind holes, choose a bottoming chamfer tap like this WIDIA GTD 14257, which has a short chamfer length to thread close to the hole bottom. Ensure the tap size matches the thread specification (7/16"-20 UNF) and that the material is suitable for high-speed steel tooling.

Used in

Common applications for WIDIA GTD
Automotive manufacturing — WIDIA GTD spiral-point taps (e.g., VTSPO5099) for through-hole threading in engine blocks
Aerospace component production — WIDIA GTD TiCN-coated taps for threading stainless steel and titanium alloys
General machining job shops — WIDIA GTD hand tap sets for maintenance and repair threading of UNC/UNF fasteners
Aluminum fabrication — WIDIA GTD spiral-flute taps for aluminum (e.g., MPN 16058) for blind-hole threading in heat sinks
Hydraulic system assembly — WIDIA GTD thread-forming taps (e.g., MPN 19862) for cold-forming threads in ductile materials
Oil and gas equipment — WIDIA GTD cobalt spiral-flute taps (e.g., VTSFT5170) for threading high-strength steel components

WIDIA GTD Products

3G Electric supplies WIDIA GTD general purpose hand taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
WIDIA GTD Straight Flute Tap: 1/2"-13 UNC, H5, 4 Flute, Bottoming Chamfer, High Speed Steel (MPN 14294)
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WIDIA GTD Straight Flute Tap: 1/2"-13 UNC, H5, 4 Flute, Bottoming Chamfer, High Speed Steel (MPN 14294)
WIDIA GTD Straight Flute Tap: 5/8"-11 UNC, H5, 4 Flute, Bottoming Chamfer, High Speed Steel (MPN 14389)
WIDIA GTD
WIDIA GTD Straight Flute Tap: 5/8"-11 UNC, H5, 4 Flute, Bottoming Chamfer, High Speed Steel (MPN 14389)
WIDIA GTD Straight Flute Tap: 5/16"-18 UNC, H2, 4 Flute, Bottoming Chamfer, High Speed Steel (MPN 14088)
WIDIA GTD
WIDIA GTD Straight Flute Tap: 5/16"-18 UNC, H2, 4 Flute, Bottoming Chamfer, High Speed Steel (MPN 14088)
WIDIA GTD Straight Flute Tap: 3/8"-16 UNC, H1, 4 Flute, Bottoming Chamfer, High Speed Steel (MPN 14148)
WIDIA GTD
WIDIA GTD Straight Flute Tap: 3/8"-16 UNC, H1, 4 Flute, Bottoming Chamfer, High Speed Steel (MPN 14148)
WIDIA GTD Straight Flute Tap: 1/4"-20 UNC, H5, 4 Flute, Bottoming Chamfer, High Speed Steel (MPN 14037)
WIDIA GTD
WIDIA GTD Straight Flute Tap: 1/4"-20 UNC, H5, 4 Flute, Bottoming Chamfer, High Speed Steel (MPN 14037)
WIDIA GTD Straight Flute Tap: 5/16"-18 UNC, H5, 4 Flute, Bottoming Chamfer, High Speed Steel (MPN 14105)
WIDIA GTD
WIDIA GTD Straight Flute Tap: 5/16"-18 UNC, H5, 4 Flute, Bottoming Chamfer, High Speed Steel (MPN 14105)

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WIDIA GTD Straight Flute Tap: 3/8"-16 UNC, H5, 4 Flute, Bottoming Chamfer, High Speed Steel (MPN 14170)
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WIDIA GTD Straight Flute Tap: 3/8"-16 UNC, H5, 4 Flute, Bottoming Chamfer, High Speed Steel (MPN 14170)
WIDIA GTD Straight Flute Tap: 7/16"-20 UNF, H3, 4 Flute, Bottoming Chamfer (MPN 19287)
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