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 Helical Insert: Tanged Tang Style, Free-Running, 3/8"-18 Thread Size, Plain - Free-Running Tanged Helical Inserts
APPROVED VENDORFree-Running Tanged Helical Inserts

APPROVED VENDOR Helical Insert: Tanged Tang Style, Free-Running, 3/8"-18 Thread Size, Plain

The APPROVED VENDOR Helical Insert is a free-running, tanged tang style insert with a 3/8"-18 thread size, plain finish, and right-hand orientation. Supplied in a 10-pack, it is made of 18-8 metal with a tensile…

SKU 3G-OTH-599204

Brand
APPROVED VENDOR
Item
Helical Insert: Tanged Tang Style, Free-Running, 3/8"-18 Thread Size, Plain
Category
Free-Running Tanged Helical Inserts
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
3552-3/8X.407
Type
Free-Running, Plain, 10 PK
Thread Size
3/8"-18
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 Helical Insert is a free-running, tanged tang style insert with a 3/8"-18 thread size, plain finish, and right-hand orientation. Supplied in a 10-pack, it is made of 18-8 metal with a tensile strength of 200,000 psi and NPT compatibility. 3G Electric interprets customer demand and delivers genuine industrial equipment across 14 departments — and far more — with specialist depth in combustion, pumps and controls as an authorised distributor for brands like Schneider, ABB, Siemens, SKF, Festo, Fluke, Interpump and FBR.

Frequently Asked Questions

What is an APPROVED VENDOR helical insert used for?

An APPROVED VENDOR helical insert repairs or reinforces threads in metal components. This free-running, tanged tang style insert with 3/8"-18 thread size is used in industrial applications requiring strong, wear-resistant threads, such as in machinery, engines, and fluid power systems.

What are the specifications of the APPROVED VENDOR helical insert 3552-3/8X.407?

This helical insert has a 3/8"-18 thread size, right-hand orientation, plain finish, and is made of 18-8 metal with a tensile strength of 200,000 psi. It is NPT compatible and supplied in a 10-pack. The manufacturer part number is 3552-3/8X.407.

Where to buy APPROVED VENDOR helical inserts worldwide?

3G Electric supplies and delivers APPROVED VENDOR helical inserts worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure your order arrives at your facility. Contact us for availability and lead time on this 10-pack of 3/8"-18 inserts.

How to install a tanged tang style helical insert?

To install a tanged tang style helical insert, drill and tap the hole to the specified size, then use a tang installation tool to wind the insert into the tapped hole until it sits slightly below the surface. After installation, break off the tang with a punch. Always follow the manufacturer's instructions for best results.

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 free-running tanged helical inserts. 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 Helical Insert: Tanged Tang Style, Free-Running, M8-1.25 Thread Size, Plain, 10 PK (MPN 3520-8.00X2.0D). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: M8-1.25; attr798676: Metal; attr798705: Metric; attr798675: APPROVED VENDOR; attr798708: 200,000 psi; attr798713: Coarse.
APPROVED VENDOR
APPROVED VENDOR Helical Insert: Tanged Tang Style, Free-Running, M8-1.25 Thread Size, Plain, 10 PK (MPN 3520-8.00X2.0D). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: M8-1.25; attr798676: Metal; attr798705: Metric; attr798675: APPROVED VENDOR; attr798708: 200,000 psi; attr798713: Coarse.
APPROVED VENDOR Helical Insert: Tanged Tang Style, Free-Running, 1/2"-20 Thread Size, Plain, 10 PK (MPN 3534-1/2X2.0D). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: 1/2"-20; attr798676: Metal; attr798705: Inch; attr798675: APPROVED VENDOR; attr798708: 200,000 psi; attr798713: Fine.
APPROVED VENDOR
APPROVED VENDOR Helical Insert: Tanged Tang Style, Free-Running, 1/2"-20 Thread Size, Plain, 10 PK (MPN 3534-1/2X2.0D). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: 1/2"-20; attr798676: Metal; attr798705: Inch; attr798675: APPROVED VENDOR; attr798708: 200,000 psi; attr798713: Fine.
APPROVED VENDOR Helical Insert: Tanged Tang Style, Free-Running, M4-0.70 Thread Size, Plain, 10 PK (MPN 3520-4.00X1.5D). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: M4-0.70; attr798676: Metal; attr798705: Metric; attr798675: APPROVED VENDOR; attr798708: 200,000 psi; attr798713: Coarse.
APPROVED VENDOR
APPROVED VENDOR Helical Insert: Tanged Tang Style, Free-Running, M4-0.70 Thread Size, Plain, 10 PK (MPN 3520-4.00X1.5D). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: M4-0.70; attr798676: Metal; attr798705: Metric; attr798675: APPROVED VENDOR; attr798708: 200,000 psi; attr798713: Coarse.
APPROVED VENDOR Helical Inserts: Tanged Tang Style, Free-Running, M18x2.5 Thread Size, 5 PK (MPN 5WZR7). Key specifications — attr798694: 304; attr798710: Right Hand; attr798707: M18-2.50; attr798676: Metal; attr798705: Metric; attr798675: APPROVED VENDOR; attr798681: 15.5 mm; attr798684: Chromium Nickel.
APPROVED VENDOR
APPROVED VENDOR Helical Inserts: Tanged Tang Style, Free-Running, M18x2.5 Thread Size, 5 PK (MPN 5WZR7). Key specifications — attr798694: 304; attr798710: Right Hand; attr798707: M18-2.50; attr798676: Metal; attr798705: Metric; attr798675: APPROVED VENDOR; attr798681: 15.5 mm; attr798684: Chromium Nickel.
APPROVED VENDOR Helical Insert: Tanged Tang Style, Free-Running, 7/8"-14 Thread Size, Plain, Plain (MPN 3534-7/8X1.0D). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: 7/8"-14; attr798676: Metal; attr798705: Inch; attr798675: APPROVED VENDOR; attr798708: 200,000 psi; attr798713: Fine.
APPROVED VENDOR
APPROVED VENDOR Helical Insert: Tanged Tang Style, Free-Running, 7/8"-14 Thread Size, Plain, Plain (MPN 3534-7/8X1.0D). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: 7/8"-14; attr798676: Metal; attr798705: Inch; attr798675: APPROVED VENDOR; attr798708: 200,000 psi; attr798713: Fine.
APPROVED VENDOR Helical Insert: Tanged Tang Style, Free-Running, 5/8"-18 Thread Size, Plain, 5 PK (MPN 3534-5/8X1.5D). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: 5/8"-18; attr798676: Metal; attr798705: Inch; attr798675: APPROVED VENDOR; attr798708: 200,000 psi; attr798713: Fine.
APPROVED VENDOR
APPROVED VENDOR Helical Insert: Tanged Tang Style, Free-Running, 5/8"-18 Thread Size, Plain, 5 PK (MPN 3534-5/8X1.5D). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: 5/8"-18; attr798676: Metal; attr798705: Inch; attr798675: APPROVED VENDOR; attr798708: 200,000 psi; attr798713: Fine.
APPROVED VENDOR Helical Insert: Tanged Tang Style, Free-Running, 1 1/2"-12 Thread Size, Plain, Plain (MPN 3534-1.1/2X1.0D). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: 1-1/2"-12; attr798676: Metal; attr798705: Inch; attr798675: APPROVED VENDOR; attr798708: 200,000 psi; attr798713: Fine.
APPROVED VENDOR
APPROVED VENDOR Helical Insert: Tanged Tang Style, Free-Running, 1 1/2"-12 Thread Size, Plain, Plain (MPN 3534-1.1/2X1.0D). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: 1-1/2"-12; attr798676: Metal; attr798705: Inch; attr798675: APPROVED VENDOR; attr798708: 200,000 psi; attr798713: Fine.
APPROVED VENDOR Helical Insert: Tanged Tang Style, Free-Running, #8-32 Thread Size, Plain, 10 PK (MPN 3532-8GX2.0D). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: #8-32; attr798676: Metal; attr798705: Inch; attr798675: APPROVED VENDOR; attr798708: 200,000 psi; attr798713: Coarse.
APPROVED VENDOR
APPROVED VENDOR Helical Insert: Tanged Tang Style, Free-Running, #8-32 Thread Size, Plain, 10 PK (MPN 3532-8GX2.0D). Key specifications — attr798694: 18-8; attr798710: Right Hand; attr798707: #8-32; attr798676: Metal; attr798705: Inch; attr798675: APPROVED VENDOR; attr798708: 200,000 psi; attr798713: Coarse.