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CARMEX Threading Insert (MPN 21 - 11.5 NPT MT7) - Machining
CARMEXMachining

CARMEX Threading Insert (MPN 21 - 11.5 NPT MT7)

CARMEX Machining.

SKU 3G-OTH-401862

Also listed as: 21115NPTMT7 · 21 11 5 NPT MT7 · 21-11-5-NPT-MT7

Brand
CARMEX
Item
Threading Insert
Category
Machining
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

CARMEX
Manufacturer Part Number
21 - 11.5 NPT MT7

Technical Documents

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CARMEX Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

CARMEX Machining.

Frequently Asked Questions

What is the CARMEX Threading Insert (MPN 21 - 11.5 NPT MT7) used for?

This CARMEX threading insert is designed for cutting NPT threads in machining operations. It is commonly used in industrial pipe fitting, valve manufacturing, and hydraulic system production where precise tapered threads are required. The insert is suitable for use on CNC lathes and manual threading machines.

What are the specifications of the CARMEX Threading Insert 21 - 11.5 NPT MT7?

The CARMEX threading insert has manufacturer part number 21 - 11.5 NPT MT7. It is a carbide insert for cutting 11.5 NPT (National Pipe Taper) threads. The MT7 designation indicates the insert geometry and grade. This insert is designed for threading applications in steel, stainless steel, and cast iron.

Where to buy CARMEX Threading Insert 21 - 11.5 NPT MT7 worldwide?

3G Electric supplies the CARMEX Threading Insert 21 - 11.5 NPT MT7 to customers worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact our team for pricing and lead time on this CARMEX threading insert.

How to select the correct CARMEX threading insert for NPT threads?

To select the correct CARMEX threading insert, match the part number to your thread specification. The 21 - 11.5 NPT MT7 is for 11.5 threads per inch NPT taper. Verify your material and machine compatibility. For best results, use the insert with proper coolant and follow CARMEX recommended cutting parameters for your workpiece material.

Used in

Common applications for CARMEX
Oil and gas — CARMEX threading inserts for NPT pipe threads in valve and fitting manufacturing
Automotive — CARMEX boring bars for internal threading in engine components and hydraulic parts
General engineering — CARMEX UN threading inserts for bolt and nut production in high-volume machining
Aerospace — CARMEX metric threading inserts for precision fasteners in structural assemblies
Hydraulics — CARMEX BSP threading inserts for port connections in cylinder and pump components

CARMEX Products

3G Electric supplies CARMEX machining. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
CARMEX Threading Insert (MPN 16 IR 27 NPTF BMA)
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WIDIA GTD Pipe and Conduit Thread Tap: 1 1/4"-11.5 NPT/ANPT, 3B, 5 Flute, Plug Chamfer (MPN 16115)
WIDIA GTD
WIDIA GTD Pipe and Conduit Thread Tap: 1 1/4"-11.5 NPT/ANPT, 3B, 5 Flute, Plug Chamfer (MPN 16115)
WIDIA GTD Pipe and Conduit Thread Tap: 1 1/2"-11.5 NPT/ANPT, 3B, 7 Flute, Plug Chamfer (MPN 16117)
WIDIA GTD
WIDIA GTD Pipe and Conduit Thread Tap: 1 1/2"-11.5 NPT/ANPT, 3B, 7 Flute, Plug Chamfer (MPN 16117)
WIDIA GTD Thread Forming Tap: M8x1.25 Metric, D9 / 6H, Plug Chamfer, TiN Coated High Speed Steel (MPN 19945)
WIDIA GTD
WIDIA GTD Thread Forming Tap: M8x1.25 Metric, D9 / 6H, Plug Chamfer, TiN Coated High Speed Steel (MPN 19945)
WIDIA GTD Thread Forming Tap: M5x0.8 Metric, D7 / 6H, Plug Chamfer, TiN Coated High Speed Steel (MPN 19943)
WIDIA GTD
WIDIA GTD Thread Forming Tap: M5x0.8 Metric, D7 / 6H, Plug Chamfer, TiN Coated High Speed Steel (MPN 19943)
WIDIA GTD Thread Forming Tap: M4x0.7 Metric, D6 / 6H, Bottoming Chamfer, TiN Coated High Speed Steel (MPN 19949)
WIDIA GTD
WIDIA GTD Thread Forming Tap: M4x0.7 Metric, D6 / 6H, Bottoming Chamfer, TiN Coated High Speed Steel (MPN 19949)

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