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

APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, M8-1.25 Thread Size, Plain - Screw-Locking Tanged Helical Inserts
APPROVED VENDORScrew-Locking Tanged Helical Inserts

APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, M8-1.25 Thread Size, Plain

APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, M8-1.25 Thread Size, Plain, 10 PK (MPN 3520-8.00X1.0DSL). This 18-8 stainless steel insert has a tensile strength of 200,000 psi, a right-hand coarse…

SKU 3G-OTH-528856

Brand
APPROVED VENDOR
Item
Helical Insert: Tanged Tang Style, Screw-Locking, M8-1.25 Thread Size, Plain
Category
Screw-Locking 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
3520-8.00X1.0DSL
Type
Screw-Locking, M8-1.25 Thread Size, Plain, 10 PK
Tensile Strength
200,000 psi
Finish Type
Plain
Thread Type
Coarse
STI Tap Size
M8-1.25
Thread Direction
Right Hand
Compatible Material
Metal
Material Grade/Class
18-8
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

APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, M8-1.25 Thread Size, Plain, 10 PK (MPN 3520-8.00X1.0DSL). This 18-8 stainless steel insert has a tensile strength of 200,000 psi, a right-hand coarse thread, and is compatible with metal. It is supplied in a 10-pack.

Frequently Asked Questions

What is an APPROVED VENDOR M8-1.25 helical insert used for?

This screw-locking tanged helical insert repairs or reinforces tapped holes in metal. It creates a strong stainless steel thread (18-8, 200,000 psi tensile) that resists loosening under vibration. Common in automotive, machinery, and industrial equipment maintenance.

What are the specifications of the APPROVED VENDOR 3520-8.00X1.0DSL helical insert?

This 10-pack of M8-1.25 coarse-thread inserts is made from 18-8 stainless steel with a plain finish. It has a right-hand thread direction, requires an STI tap size M8-1.25, and delivers 200,000 psi tensile strength. Compatible with metal substrates.

Where to buy APPROVED VENDOR helical inserts in worldwide?

3G Electric supplies and delivers APPROVED VENDOR helical inserts worldwide. We handle full logistics and customs clearance for global orders. Contact us for availability and lead time on the M8-1.25 10-pack (MPN 3520-8.00X1.0DSL).

How to install a tanged screw-locking helical insert?

Drill out the damaged thread to the specified STI tap size (M8-1.25), tap the hole, then wind the insert onto the installation tool until it sits below the surface. Break off the tang with a punch. The screw-locking feature holds the insert in place without adhesive.

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 screw-locking 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, Screw-Locking, M8-2.00 Thread Size, Plain, 10 PK (MPN 3520-8.00X2.0DSL). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Thread Size: M8-2.00; STI Tap Size: M8-2.00; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Tensile Strength: 200,000 psi.
APPROVED VENDOR
APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, M8-2.00 Thread Size, Plain, 10 PK (MPN 3520-8.00X2.0DSL). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; Thread Size: M8-2.00; STI Tap Size: M8-2.00; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Tensile Strength: 200,000 psi.
APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, M20-2.50 Thread Size, Plain, Plain (MPN 3520-20.00X1.5DSL). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: M20-2.50; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Drill Bit Size: 0.819 in; Tensile Strength: 200,000 psi.
APPROVED VENDOR
APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, M20-2.50 Thread Size, Plain, Plain (MPN 3520-20.00X1.5DSL). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: M20-2.50; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Drill Bit Size: 0.819 in; Tensile Strength: 200,000 psi.
APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, M5-0.80 Thread Size, Plain, 10 PK (MPN 3520-5.00X2.0DSL). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: M5-0.80; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Tensile Strength: 200,000 psi; Thread Type: Coarse.
APPROVED VENDOR
APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, M5-0.80 Thread Size, Plain, 10 PK (MPN 3520-5.00X2.0DSL). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: M5-0.80; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Tensile Strength: 200,000 psi; Thread Type: Coarse.
APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, 1 1/4"-12 Thread Size, Plain (MPN 3534-1.1/4X1.5DSL). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: 1-1/4"-12; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Tensile Strength: 200,000 psi; Thread Type: Fine.
APPROVED VENDOR
APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, 1 1/4"-12 Thread Size, Plain (MPN 3534-1.1/4X1.5DSL). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: 1-1/4"-12; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Tensile Strength: 200,000 psi; Thread Type: Fine.
APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, 1 1/8"-7 Thread Size, Plain, Plain (MPN 3532-1.1/8X1.5DSL). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: 1-1/8"-7; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Tensile Strength: 200,000 psi; Thread Type: Coarse.
APPROVED VENDOR
APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, 1 1/8"-7 Thread Size, Plain, Plain (MPN 3532-1.1/8X1.5DSL). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: 1-1/8"-7; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Tensile Strength: 200,000 psi; Thread Type: Coarse.
APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, 1/4"-20 Thread Size, Plain, 10 PK (MPN 3532-1/4X2.0DSL). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: 1/4"-20; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Tensile Strength: 200,000 psi; Thread Type: Coarse.
APPROVED VENDOR
APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, 1/4"-20 Thread Size, Plain, 10 PK (MPN 3532-1/4X2.0DSL). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: 1/4"-20; Compatible Material: Metal; System of Measurement: Inch; Brand: APPROVED VENDOR; Tensile Strength: 200,000 psi; Thread Type: Coarse.
APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, M10-1.25 Thread Size, Plain, 10 PK (MPN 3521-10.00X1.5DSL). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: M10-1.25; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Tensile Strength: 200,000 psi; Thread Type: Fine.
APPROVED VENDOR
APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, M10-1.25 Thread Size, Plain, 10 PK (MPN 3521-10.00X1.5DSL). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: M10-1.25; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Tensile Strength: 200,000 psi; Thread Type: Fine.
APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, M24-3.00 Thread Size, Plain, Plain (MPN 3520-24.00X1.5DSL). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: M24-3.00; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Tensile Strength: 200,000 psi; Thread Type: Coarse.
APPROVED VENDOR
APPROVED VENDOR Helical Insert: Tanged Tang Style, Screw-Locking, M24-3.00 Thread Size, Plain, Plain (MPN 3520-24.00X1.5DSL). Key specifications — Material Grade/Class: 18-8; Thread Direction: Right Hand; STI Tap Size: M24-3.00; Compatible Material: Metal; System of Measurement: Metric; Brand: APPROVED VENDOR; Tensile Strength: 200,000 psi; Thread Type: Coarse.