CHICAGO-LATROBE Straight Flute Tap: 5/16"-18 UNC, H3 / 2B, 4 Flute, Plug Chamfer, LH (MPN 317573)

The CHICAGO-LATROBE Straight Flute Tap (SKU 53PV36) is a left-hand thread tap with a 5/16"-18 UNC size, featuring an H3 / 2B tolerance, 4 flutes, and a plug chamfer. This OEM tool (MPN 317573) is designed for…

SKU 3G-OTH-265155

Brand

CHICAGO-LATROBE

Item

Straight Flute Tap: 5/16"-18 UNC, H3 / 2B, 4 Flute, Plug Chamfer, LH

Technical Specifications

CHICAGO-LATROBE

Manufacturer Part Number

317573

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

Product Description

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the CHICAGO-LATROBE Straight Flute Tap 317573 used for?

This left-hand thread tap is used for cutting internal threads in blind or through holes. It is ideal for maintenance, repair, and production applications where left-hand threads are required, such as in automotive or machinery components.

What are the specifications of the CHICAGO-LATROBE Straight Flute Tap 317573?

This tap has a 5/16"-18 UNC thread size, H3 / 2B tolerance, 4 flutes, and a plug chamfer. It is a left-hand (LH) tap, designed for right-hand rotation cutting. The manufacturer part number is 317573.

Where to buy CHICAGO-LATROBE Straight Flute Tap 317573 worldwide?

3G Electric supplies this CHICAGO-LATROBE tap worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

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

For left-hand threads, ensure the tap is marked LH. Match the thread size (e.g., 5/16"-18 UNC) and tolerance class (H3 / 2B) to your application. A plug chamfer is suitable for most blind holes. CHICAGO-LATROBE taps are a reliable choice for precision threading.

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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