OSG Extension Tap: 5/16"-24 UNF, H3 / 2B-3B, 2 Flute, Plug Chamfer
The OSG Extension Tap (5/16"-24 UNF) is a spiral-point extension tap with a plug chamfer, made from high-speed steel. It features an H3 / 2B-3B tolerance class and 2 flutes, identified by MPN 2103600. 3G Electric…
SKU 3G-OTH-313654
Need installation or engineering help?
Ask a question
Product Description
The OSG Extension Tap (5/16"-24 UNF) is a spiral-point extension tap with a plug chamfer, made from high-speed steel. It features an H3 / 2B-3B tolerance class and 2 flutes, identified by MPN 2103600. 3G Electric sources this genuine industrial threading tool across 14 departments, with specialist expertise in combustion, pumps, and controls ensuring accurate fulfillment.
Frequently Asked Questions
What is the OSG Extension Tap 2103600 used for?
The OSG Extension Tap 2103600 is used for threading blind or deep holes in metal parts, particularly where standard taps cannot reach. Its 5/16"-24 UNF size and plug chamfer make it suitable for precision threading in automotive, aerospace, and general manufacturing applications.
What are the specifications of the OSG Extension Tap 2103600?
The OSG Extension Tap 2103600 has a thread size of 5/16"-24 UNF, with a tolerance class of H3 / 2B-3B. It features a 2-flute spiral-point design, plug chamfer, and is made from high-speed steel. The manufacturer part number is 2103600.
Where to buy the OSG Extension Tap 2103600 worldwide?
You can source the OSG Extension Tap 2103600 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring the tap reaches your facility reliably.
How to select the correct OSG extension tap for a threading job?
To select the correct OSG extension tap, match the thread size (e.g., 5/16"-24 UNF) and tolerance class (H3 / 2B-3B) to your hole specifications. Consider the material being threaded and the tap's flute design—spiral-point taps like the 2103600 are ideal for through-holes. Consult OSG's technical data for guidance.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point extension taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















