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 Left Hand Insert: Free-Running, Left Hand, 3/8"-16 Thread Size, Plain, Plain - Insert & Tool Kits
APPROVED VENDORInsert & Tool Kits

APPROVED VENDOR Left Hand Insert: Free-Running, Left Hand, 3/8"-16 Thread Size, Plain, Plain

The APPROVED VENDOR Left Hand Insert (MPN 83120LH) is a free-running, left-hand thread insert with a 3/8"-16 coarse thread size, designed for metal materials. This 6-pack features a plain finish and uses inch-system…

SKU 3G-OTH-528216

Brand
APPROVED VENDOR
Item
Left Hand Insert: Free-Running, Left Hand, 3/8"-16 Thread Size, Plain, Plain
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
83120LH
Type
Left Hand, Plain, Plain, 6 PK
Finish Type
Plain
Thread Size
3/8"-16
Thread Type
Coarse
Thread Direction
Left Hand
Compatible Material
Metal
System of Measurement
Inch
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 Left Hand Insert (MPN 83120LH) is a free-running, left-hand thread insert with a 3/8"-16 coarse thread size, designed for metal materials. This 6-pack features a plain finish and uses inch-system measurements, providing a straightforward solution for left-hand thread repair or installation.

Frequently Asked Questions

What is the APPROVED VENDOR Left Hand Insert used for?

This free-running insert repairs or installs left-hand threads in metal components. It is ideal for applications where reverse rotation or specific assembly requirements demand a left-hand 3/8"-16 coarse thread, such as in machinery, automotive, or industrial equipment.

What are the specifications of the APPROVED VENDOR Left Hand Insert 83120LH?

The insert has a 3/8"-16 coarse thread size, left-hand thread direction, plain finish, and is compatible with metal materials. It uses inch-system measurements and comes in a 6-pack. The manufacturer part number is 83120LH.

Where to buy the APPROVED VENDOR Left Hand Insert 83120LH worldwide?

3G Electric supplies the APPROVED VENDOR Left Hand Insert 83120LH to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive the correct left-hand thread inserts for your metal repair or installation needs.

How to install a left-hand thread insert like the APPROVED VENDOR 83120LH?

Installation requires a compatible tap and insertion tool for left-hand threads. Drill the hole to the specified size, tap with a left-hand 3/8"-16 tap, then use the insertion tool to drive the insert flush with the surface. 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 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 Left Hand Insert: Free-Running, Left Hand, 5/16"-24 Thread Size, Plain, Plain, 6 PK (MPN 83119LH). Key specifications — Thread Direction: Left Hand; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Thread Type: Fine; Finish Type: Plain.
APPROVED VENDOR
APPROVED VENDOR Left Hand Insert: Free-Running, Left Hand, 5/16"-24 Thread Size, Plain, Plain, 6 PK (MPN 83119LH). Key specifications — Thread Direction: Left Hand; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Thread Type: Fine; Finish Type: Plain.
APPROVED VENDOR Thread Repair Kit: Free-Running, Stainless Steel, Plain, 18-8 Stainless Steel, Plain (MPN 87927). Key specifications — Thread Size: M8-1; 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, Stainless Steel, Plain, 18-8 Stainless Steel, Plain (MPN 87927). Key specifications — Thread Size: M8-1; Insert Types Included: Helical Inserts; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Finish Type: Plain.
APPROVED VENDOR Helical Inserts Non-Lock: Free-Running, M27-1.5 Thread Size, 1 19/32 in Overall Lg (MPN 83188). Key specifications — Thread Size: M27-1.5; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Finish Type: Plain.
APPROVED VENDOR
APPROVED VENDOR Helical Inserts Non-Lock: Free-Running, M27-1.5 Thread Size, 1 19/32 in Overall Lg (MPN 83188). Key specifications — Thread Size: M27-1.5; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Finish Type: Plain.
APPROVED VENDOR Locking Helical Inserts: Screw-Locking, 1 1/2"-8 Thread Size, 2 1/4 in Overall Lg (MPN 83304-1.5L). Key specifications — Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Thread Type: 8 UN; Finish Type: Plain.
APPROVED VENDOR
APPROVED VENDOR Locking Helical Inserts: Screw-Locking, 1 1/2"-8 Thread Size, 2 1/4 in Overall Lg (MPN 83304-1.5L). Key specifications — Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Thread Type: 8 UN; Finish Type: Plain.
APPROVED VENDOR Thread Repair Kit: Free-Running, 2"-8 Thread Size, 3 in Overall Lg, Stainless Steel (MPN 82308). Key specifications — Insert Types Included: Helical Inserts; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Thread Type: 8 UN; Finish Type: Plain.
APPROVED VENDOR
APPROVED VENDOR Thread Repair Kit: Free-Running, 2"-8 Thread Size, 3 in Overall Lg, Stainless Steel (MPN 82308). Key specifications — Insert Types Included: Helical Inserts; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Thread Type: 8 UN; Finish Type: Plain.
APPROVED VENDOR Thread Repair Kit: Tanged Tang Style, Free-Running, 7/16"-20 Thread Size, Plain (MPN 3534-7/16K). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 7/16"-20; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Drill Bit Size: 11.5 mm.
APPROVED VENDOR
APPROVED VENDOR Thread Repair Kit: Tanged Tang Style, Free-Running, 7/16"-20 Thread Size, Plain (MPN 3534-7/16K). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: 7/16"-20; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Drill Bit Size: 11.5 mm.
APPROVED VENDOR Thread Repair Kit: Tanged Tang Style, Free-Running, #4-48 Thread Size, Plain, Plain (MPN 3534-5/16K). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: #4-48; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Drill Bit Size: 8.3 mm.
APPROVED VENDOR
APPROVED VENDOR Thread Repair Kit: Tanged Tang Style, Free-Running, #4-48 Thread Size, Plain, Plain (MPN 3534-5/16K). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Insert Types Included: Helical Inserts; STI Tap Size: #4-48; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Drill Bit Size: 8.3 mm.
APPROVED VENDOR Helical Inserts Non-Lock: Free-Running, M64-4 Thread Size, 3 25/32 in Overall Lg (MPN 83212). Key specifications — Thread Size: M64-4; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Finish Type: Plain.
APPROVED VENDOR
APPROVED VENDOR Helical Inserts Non-Lock: Free-Running, M64-4 Thread Size, 3 25/32 in Overall Lg (MPN 83212). Key specifications — Thread Size: M64-4; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Finish Type: Plain.