CHICAGO-LATROBE Straight Flute Tap: 1/2"-20 UNF, H3 / 2B, 4 Flute, Plug Chamfer, LH (MPN 317789)
SKU 3G-OTH-265135
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Frequently Asked Questions
What is a CHICAGO-LATROBE Straight Flute Tap used for?
This left-hand thread tap is used to cut internal UNF threads in metal parts, typically for applications requiring reverse-thread fasteners. It is common in automotive, aerospace, and industrial maintenance where vibration or assembly direction demands left-hand threads.
What are the specifications of the CHICAGO-LATROBE 1/2"-20 UNF tap?
This tap has a 1/2"-20 UNF thread size, H3 / 2B tolerance, 4 flutes, plug chamfer, and left-hand (LH) rotation. The manufacturer part number is 317789. It is designed for through-hole or blind-hole threading in ferrous and non-ferrous materials.
Where to buy CHICAGO-LATROBE taps in worldwide?
3G Electric supplies CHICAGO-LATROBE taps worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source and deliver genuine cutting tools like this 1/2"-20 UNF left-hand tap to any location. Contact us for availability and lead time.
How to select the correct tap for left-hand threads?
Match the tap to the required thread size, pitch, and class of fit—here 1/2"-20 UNF with H3 / 2B tolerance. Choose plug chamfer for most applications; left-hand taps require reversing spindle direction. Always use proper cutting fluid and tap guides to ensure thread quality and tool life.
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Common applications for CHICAGO-LATROBECHICAGO-LATROBE Products
3G Electric supplies CHICAGO-LATROBE left-hand thread taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
