HSS Spiral Point Threading Tap 1/4-20 UNC
Spiral point plug tap made from M2 high-speed steel with 4% chromium and 1.8% vanadium for cutting clean 1/4-20 UNC threads. Optimized for through-hole tapping in steel and aluminum. The elevated alloy content in the flutes classifies it under this high-performance tools subheading.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If basic carbon steel construction
Non-alloyed taps without specified Cr/Mo/W/V content use the general threading tools heading.
If for use in interchangeable knife sets
If marketed as part of a cutting tool set assembly, may shift classification.
If as replacement part for specific OEM machine-tool
Dedicated machine parts rather than universal interchangeable tools go to Chapter 84.
Not sure which classification is right?
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Import Tips & Compliance
• Document thread specification (UNC/UNF metric) and steel grade (M2/AISI T11342) for accurate HTS verification
• Avoid common pitfall of declaring as 'hand tap only'—most qualify as interchangeable for power tools
• Bundle with chamfer type (plug/taper/bottoming) descriptions in invoices to support classification
Related Products under HTS 8207.40.30.00
HSS Tap for M6 Threads
A high-speed steel tap designed for cutting internal M6 metric threads in metal workpieces. It contains over 0.2% chromium and over 0.1% vanadium in the cutting edges, qualifying it for this HTS subheading. Used in manual or machine tapping operations for precision threading.
Carbide Tipped Threading Die M10 x 1.5
Adjustable round die for external M10 x 1.5 metric threads with tungsten carbide inserts exceeding 0.2% tungsten content. Designed for hand or lathe use in creating precise external threads on rods and bolts. The high-alloy cutting part meets the metallurgical criteria of this subheading.
Vanadium Alloy Machine Reamer Tap
Combined threading and reamer tap with 6% molybdenum and 2% vanadium cutting edges for precision hole sizing and threading. Suitable for CNC machining centers. Exceeds vanadium threshold by weight, fitting this specialized HTS classification.
1/2-13 NPT Pipe Thread Tap
Taper pipe tap for 1/2-13 NPT threads in steel piping, constructed with 5% chromium HSS for durability. Designed for power tapping heads in plumbing and oilfield applications. Chromium content exceeds 0.2% threshold for this classification.
Powder Metallurgy HSS Thread Mill
Solid carbide thread mill with PM-HSS containing tungsten carbides >0.2% for helical interpolation threading. Used in 3-5 axis CNC mills for blind holes. Advanced metallurgy qualifies under this high-performance subheading.
M12x1.75 Adjustable Threading Die
Two-piece adjustable die set for metric M12x1.75 external threads, featuring cobalt-molybdenum enhanced high-speed steel (over 0.2% Mo). Used in diestocks for field repairs and manufacturing. Alloy composition triggers this subheading's metallurgical requirement.