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CHICAGO-LATROBE Straight Flute Tap: 5/8"-18 UNF, H3 / 2B, 4 Flute, Plug Chamfer, LH (MPN 317904) - Left-Hand Thread Taps
CHICAGO-LATROBELeft-Hand Thread Taps

CHICAGO-LATROBE Straight Flute Tap: 5/8"-18 UNF, H3 / 2B, 4 Flute, Plug Chamfer, LH (MPN 317904)

SKU 3G-OTH-265159

Brand
CHICAGO-LATROBE
Item
Straight Flute Tap: 5/8"-18 UNF, H3 / 2B, 4 Flute, Plug Chamfer, LH
Category
Left-Hand Thread Taps
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
317904
Type
H3 / 2B, Plug Chamfer, LH
Flute
4
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Technical Documents

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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

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 maintenance, repair, or production work where a left-hand thread is required to prevent loosening under vibration.

What are the specifications of the CHICAGO-LATROBE 317904 tap?

The tap has a 5/8"-18 UNF thread size, H3 / 2B tolerance, 4 flutes, plug chamfer, and left-hand (LH) rotation. 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. We handle full logistics and customs clearance to deliver this 5/8"-18 UNF left-hand tap to your facility, regardless of location.

How to select the correct tap for left-hand threads?

Match the tap to the required thread size, pitch, and hand (left or right). For this CHICAGO-LATROBE tap, use a 5/8"-18 UNF die or thread gauge to verify fit, and ensure the tap drill size matches the 2B class of fit.

Used in

Common applications for CHICAGO-LATROBE
Aerospace assembly — Chicago-Latrobe NAS 907 Type B aircraft-extension drill bits for drilling fastener holes in aluminum and titanium skins.
Metal fabrication — Chicago-Latrobe reduced-shank drill bit sets for enlarging holes in structural steel using magnetic drill presses.
Maintenance repair — Chicago-Latrobe left-hand cobalt jobber-length drill bits for removing broken bolts in machinery.
Tool and die making — Chicago-Latrobe jobber-length drill bit sets with 135° split point for precision hole drilling in hardened steels.
Automotive repair — Chicago-Latrobe spiral-flute screw extractors for removing seized fasteners in engine blocks or exhaust systems.
General manufacturing — Chicago-Latrobe HSS jobber-length drill bits for production drilling in mild steel and cast iron.

CHICAGO-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.

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