Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
APPROVED VENDOR Thread Repair Kit: Tanged Tang Style, Free-Running, M18-2.50 Thread Size - Insert & Tool Kits
APPROVED VENDORInsert & Tool Kits

APPROVED VENDOR Thread Repair Kit: Tanged Tang Style, Free-Running, M18-2.50 Thread Size

The APPROVED VENDOR Thread Repair Kit (MPN 3520-18.00K) is a tanged tang-style insert and tool kit for free-running M18-2.50 coarse threads. It includes helical inserts made from 18-8 stainless steel, a right-hand…

SKU 3G-OTH-527898

Brand
APPROVED VENDOR
Item
Thread Repair Kit: Tanged Tang Style, Free-Running, M18-2.50 Thread Size
Category
Insert & Tool Kits
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
3520-18.00K
Type
Free-Running, M18-2.50 Thread Size, Plain
Finish Type
Plain
Thread Type
Coarse
STI Tap Size
M18-2.50
Drill Bit Size
18.5 mm
Thread Direction
Right Hand
Compatible Material
Metal
Material Grade/Class
18-8
Insert Types Included
Helical Inserts
System of Measurement
Metric
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The APPROVED VENDOR Thread Repair Kit (MPN 3520-18.00K) is a tanged tang-style insert and tool kit for free-running M18-2.50 coarse threads. It includes helical inserts made from 18-8 stainless steel, a right-hand thread STI tap, and an 18.5 mm drill bit, all in metric sizing for metal repair.

Frequently Asked Questions

What is the APPROVED VENDOR Thread Repair Kit used for?

The APPROVED VENDOR Thread Repair Kit (MPN 3520-18.00K) is used to restore damaged M18-2.50 coarse threads in metal components. It is ideal for industrial maintenance, automotive repair, and machinery rebuilds where a free-running helical insert provides a durable, 18-8 stainless steel thread repair.

What are the specifications of the APPROVED VENDOR Thread Repair Kit?

The kit includes helical inserts made from 18-8 stainless steel, a right-hand STI tap sized M18-2.50, and an 18.5 mm drill bit. It is metric, plain finish, and designed for free-running coarse thread repair in metal. The tanged tang style allows easy installation with standard tools.

Where to buy the APPROVED VENDOR Thread Repair Kit worldwide?

3G Electric supplies the APPROVED VENDOR Thread Repair Kit (MPN 3520-18.00K) to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive the correct helical insert kit for your M18-2.50 thread repair needs, regardless of your location.

How to install the APPROVED VENDOR Thread Repair Kit?

Drill out the damaged thread using the included 18.5 mm bit, then tap the hole with the M18-2.50 STI tap. Insert the helical coil using a tang-style installation tool, then break off the tang. The 18-8 stainless steel insert provides a strong, free-running thread for metal repairs.

Used in

Common applications for APPROVED VENDOR
Laboratory sampling — APPROVED VENDOR clear wide mouth glass bottles for collecting and storing liquid samples in non-sterile environments.
Steam heating maintenance — APPROVED VENDOR forged brass radiator valves for regulating steam flow in commercial building heating systems.
High-pressure cleaning — APPROVED VENDOR turbo spray nozzles for pressure washers used in industrial equipment cleaning up to 6,000 psi.
Cleanroom operations — APPROVED VENDOR vinyl task chairs for seating in ISO 5 classified manufacturing or assembly areas.
General sealing — APPROVED VENDOR natural rubber stoppers for closing laboratory flasks or test tubes in educational or research settings.
Tamper-evident security — APPROVED VENDOR brass lead and wire seals for securing utility meters, cargo containers, or access panels.

APPROVED VENDOR Products

3G Electric supplies APPROVED VENDOR insert & tool kits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from APPROVED VENDOR

View all APPROVED VENDOR parts →
APPROVED VENDOR Thread Repair Kit: Free-Running, M30 Thread Size, 1 49/64 in Overall Lg, Plain (MPN 82193). Key specifications — Insert Types Included: Helical Inserts; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Finish Type: Plain.
APPROVED VENDOR
APPROVED VENDOR Thread Repair Kit: Free-Running, M30 Thread Size, 1 49/64 in Overall Lg, Plain (MPN 82193). Key specifications — Insert Types Included: Helical Inserts; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Finish Type: Plain.
APPROVED VENDOR Thread Repair Kit: Free-Running, Left Hand, M6 Thread Size, 23/64 in Overall Lg (MPN 82157LH). Key specifications — Thread Direction: Left Hand; Insert Types Included: Helical Inserts; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Finish Type: Plain.
APPROVED VENDOR
APPROVED VENDOR Thread Repair Kit: Free-Running, Left Hand, M6 Thread Size, 23/64 in Overall Lg (MPN 82157LH). Key specifications — Thread Direction: Left Hand; Insert Types Included: Helical Inserts; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Finish Type: Plain.
APPROVED VENDOR Left Hand Insert: Free-Running, Left Hand, M10-1.50 Thread Size, Plain, Plain, 6 PK (MPN 83165LH). Key specifications — Thread Direction: Left Hand; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Finish Type: Plain.
APPROVED VENDOR
APPROVED VENDOR Left Hand Insert: Free-Running, Left Hand, M10-1.50 Thread Size, Plain, Plain, 6 PK (MPN 83165LH). Key specifications — Thread Direction: Left Hand; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Finish Type: Plain.
APPROVED VENDOR Thread Repair Kit: Tanged Tang Style, Free-Running, 1/2"-14 Thread Size, Plain (MPN 3552-1/2K). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 1/2"-14; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Thread Type: NPT.
APPROVED VENDOR
APPROVED VENDOR Thread Repair Kit: Tanged Tang Style, Free-Running, 1/2"-14 Thread Size, Plain (MPN 3552-1/2K). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 1/2"-14; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Thread Type: NPT.
APPROVED VENDOR Left Hand Insert: Free-Running, Left Hand, M16-1.5 Thread Size, Plain, Plain, 4 PK (MPN 83174LH). Key specifications — Thread Direction: Left Hand; Thread Size: M16-1.5; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Finish Type: Plain.
APPROVED VENDOR
APPROVED VENDOR Left Hand Insert: Free-Running, Left Hand, M16-1.5 Thread Size, Plain, Plain, 4 PK (MPN 83174LH). Key specifications — Thread Direction: Left Hand; Thread Size: M16-1.5; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Finish Type: Plain.
APPROVED VENDOR Helical Inserts Non-Lock: Free-Running, M24-2 Thread Size, 1 27/64 in Overall Lg (MPN 83186). Key specifications — Thread Size: M24-2; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Finish Type: Plain.
APPROVED VENDOR
APPROVED VENDOR Helical Inserts Non-Lock: Free-Running, M24-2 Thread Size, 1 27/64 in Overall Lg (MPN 83186). Key specifications — Thread Size: M24-2; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Finish Type: Plain.
APPROVED VENDOR Helical Inserts Non-Lock: Free-Running, 3 3/8"-8 Thread Size, 4 7/32 in Overall Lg (MPN 83319-1.5). Key specifications — Thread Size: 3-3/8"-8; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Thread Type: 8 UN; Finish Type: Plain.
APPROVED VENDOR
APPROVED VENDOR Helical Inserts Non-Lock: Free-Running, 3 3/8"-8 Thread Size, 4 7/32 in Overall Lg (MPN 83319-1.5). Key specifications — Thread Size: 3-3/8"-8; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Thread Type: 8 UN; Finish Type: Plain.
APPROVED VENDOR Thread Repair Kit: Free-Running, M33 Thread Size, 1 61/64 in Overall Lg, Plain (MPN 82195). Key specifications — Insert Types Included: Helical Inserts; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Finish Type: Plain.
APPROVED VENDOR
APPROVED VENDOR Thread Repair Kit: Free-Running, M33 Thread Size, 1 61/64 in Overall Lg, Plain (MPN 82195). Key specifications — Insert Types Included: Helical Inserts; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Finish Type: Plain.