OSG Straight Flute Tap: 1/4"-20 UNC, 2B+, 4 Flute, Plug Chamfer
3G Electric supplies the OSG Straight Flute Tap (1/4"-20 UNC, MPN 1590100), an oversized hand tap with a 2B+ tolerance, plug chamfer, 4 flutes, and high-speed steel construction. We interpret your threading…
SKU 3G-OTH-272763
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Product Description
3G Electric supplies the OSG Straight Flute Tap (1/4"-20 UNC, MPN 1590100), an oversized hand tap with a 2B+ tolerance, plug chamfer, 4 flutes, and high-speed steel construction. We interpret your threading requirements, source the correct tooling, and support your operations across 14 industrial departments — with specialist depth in combustion, pumps, and controls as an authorized distributor.
Frequently Asked Questions
What is the OSG Straight Flute Tap 1/4"-20 UNC used for?
The OSG Straight Flute Tap is used for cutting internal threads in metal components, specifically 1/4"-20 UNC threads. It is ideal for through-hole or blind-hole tapping in production and maintenance applications across automotive, aerospace, and general manufacturing industries.
What are the specifications of the OSG Straight Flute Tap 1/4"-20 UNC?
This OSG tap has a 1/4"-20 UNC thread size, 2B+ tolerance, 4 flutes, and a plug chamfer. It is made from high-speed steel (HSS) and carries manufacturer part number 1590100. The 2B+ fit provides slightly oversized threads for improved coating or plating allowance.
Where to buy the OSG Straight Flute Tap 1/4"-20 UNC worldwide?
You can source the OSG Straight Flute Tap 1/4"-20 UNC worldwide through 3G Electric. We handle full logistics, customs clearance, and delivery to global destinations. Contact us for availability and lead time; we supply genuine OSG taps for industrial threading needs.
How to select the correct OSG Straight Flute Tap for my application?
Select the OSG Straight Flute Tap based on thread size (1/4"-20 UNC), material (HSS for general steel), and chamfer type (plug for most applications). For coated threads, use the 2B+ oversized tap. Always match tap to hole type (through or blind) and workpiece hardness.
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Common applications for OSGOSG Products
3G Electric supplies OSG oversized hand taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















