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

APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 7/16"-14 Ext Thrd Sz - Stainless Steel Key-Locking Inserts
APPROVED VENDORStainless Steel Key-Locking Inserts

APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 7/16"-14 Ext Thrd Sz

APPROVED VENDOR Stainless Steel Key-Locking Inserts, Heavy Wall type, with 4 keys, 1/4"-20 internal thread size and 7/16"-14 external thread size, plain finish, 10 PK. These inch-system inserts are made from 303…

SKU 3G-OTH-535617

Brand
APPROVED VENDOR
Item
Key Locking Insert: Heavy Wall, 4 Keys, 1/4"-20 Int Thrd Sz, 7/16"-14 Ext Thrd Sz
Category
Stainless Steel Key-Locking 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
215-066302
Type
Plain, 10 PK
Keys
4
Wall Type
Heavy Wall
Ext Thrd Sz
7/16"-14
Finish Type
Plain
Int Thrd Sz
1/4"-20
Thread Type
Coarse
Compatible Tap Size
7/16"-14
External Thread Fit
2A
Internal Thread Fit
2B
Material Grade/Class
303
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

APPROVED VENDOR Stainless Steel Key-Locking Inserts, Heavy Wall type, with 4 keys, 1/4"-20 internal thread size and 7/16"-14 external thread size, plain finish, 10 PK. These inch-system inserts are made from 303 stainless steel with coarse threads, compatible with a 7/16"-14 tap, and feature 2A external and 2B internal thread fits.

Frequently Asked Questions

What are APPROVED VENDOR key-locking inserts used for?

APPROVED VENDOR key-locking inserts repair or reinforce tapped threads in metal assemblies. The heavy-wall, 303 stainless steel design with four keys resists rotation under vibration, making them suitable for industrial machinery, automotive, and aerospace applications where thread integrity is critical.

What are the specifications of the APPROVED VENDOR 215-066302 key-locking insert?

This insert has a 1/4"-20 internal thread and 7/16"-14 external thread, coarse thread type, plain finish, and 2A external / 2B internal thread fits. It is made from 303 stainless steel, heavy wall type, with four keys, and comes in a 10-pack. Compatible tap size is 7/16"-14.

Where to buy APPROVED VENDOR key-locking inserts worldwide?

3G Electric supplies APPROVED VENDOR key-locking inserts worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the 215-066302 10-pack or other thread repair inserts.

How to install a key-locking thread insert?

Installation requires tapping the hole to the specified compatible tap size (7/16"-14 for this insert), then driving the insert using a key-locking installation tool until the keys engage the parent material. Ensure the insert is flush or slightly below the surface. Use a thread-locking compound for added security in high-vibration environments.

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 stainless steel key-locking 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
Key Locking Insert: Thin Wall, 2 Keys, 1/4"-20 Int Thrd Sz, 3/8"-16 Ext Thrd Sz, Plain, Plain, 10 PK (MPN 215-066322). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 3/8"-16; External Thread Fit: 2A; Internal Thread Fit: 2B; Material Grade/Class: 303; System of Measurement: Inch; Thread Type: Fine.
APPROVED VENDOR
Key Locking Insert: Thin Wall, 2 Keys, 1/4"-20 Int Thrd Sz, 3/8"-16 Ext Thrd Sz, Plain, Plain, 10 PK (MPN 215-066322). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 3/8"-16; External Thread Fit: 2A; Internal Thread Fit: 2B; Material Grade/Class: 303; System of Measurement: Inch; Thread Type: Fine.
Key Locking Insert: Thin Wall, 4 Keys, 7/16"-14 Int Thrd Sz, 9/16"-12 Ext Thrd Sz, Plain, 10 PK (MPN 215-066325). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 9/16"-12; External Thread Fit: 2A; Internal Thread Fit: 2B; Material Grade/Class: 303; System of Measurement: Inch; Thread Type: Fine.
APPROVED VENDOR
Key Locking Insert: Thin Wall, 4 Keys, 7/16"-14 Int Thrd Sz, 9/16"-12 Ext Thrd Sz, Plain, 10 PK (MPN 215-066325). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 9/16"-12; External Thread Fit: 2A; Internal Thread Fit: 2B; Material Grade/Class: 303; System of Measurement: Inch; Thread Type: Fine.
Key Locking Insert: Thin Wall, 2 Keys, 10"-32 Int Thrd Sz, 5/16"-18 Ext Thrd Sz, Plain, Plain, 10 PK (MPN 215-066121). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 5/16"-18; External Thread Fit: 2A; Internal Thread Fit: 2B; Internal Thread Size: 10"-32; Material Grade/Class: C1215; System of Measurement: Inch.
APPROVED VENDOR
Key Locking Insert: Thin Wall, 2 Keys, 10"-32 Int Thrd Sz, 5/16"-18 Ext Thrd Sz, Plain, Plain, 10 PK (MPN 215-066121). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 5/16"-18; External Thread Fit: 2A; Internal Thread Fit: 2B; Internal Thread Size: 10"-32; Material Grade/Class: C1215; System of Measurement: Inch.
Key Locking Insert: Thin Wall, 4 Keys, 5/16"-24 Int Thrd Sz, 7/16"-14 Ext Thrd Sz, Plain, 10 PK (MPN 215-066123). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 7/16"-14; External Thread Fit: 2A; Internal Thread Fit: 2B; Material Grade/Class: C1215; System of Measurement: Inch; Thread Type: Fine.
APPROVED VENDOR
Key Locking Insert: Thin Wall, 4 Keys, 5/16"-24 Int Thrd Sz, 7/16"-14 Ext Thrd Sz, Plain, 10 PK (MPN 215-066123). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 7/16"-14; External Thread Fit: 2A; Internal Thread Fit: 2B; Material Grade/Class: C1215; System of Measurement: Inch; Thread Type: Fine.
Key Locking Insert: Thin Wall, 2 Keys, 10"-24 Int Thrd Sz, 5/16"-18 Ext Thrd Sz, Plain, Plain, 10 PK (MPN 215-066321). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 5/16"-18; External Thread Fit: 2A; Internal Thread Fit: 2B; Internal Thread Size: 10"-24; Material Grade/Class: 303; System of Measurement: Inch.
APPROVED VENDOR
Key Locking Insert: Thin Wall, 2 Keys, 10"-24 Int Thrd Sz, 5/16"-18 Ext Thrd Sz, Plain, Plain, 10 PK (MPN 215-066321). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 5/16"-18; External Thread Fit: 2A; Internal Thread Fit: 2B; Internal Thread Size: 10"-24; Material Grade/Class: 303; System of Measurement: Inch.
Key Locking Insert: Heavy Wall, 4 Keys, 1/2"-20 Int Thrd Sz, 3/4"-16 Ext Thrd Sz, Plain, 10 PK (MPN 215-066106). Key specifications — Wall Type: Heavy Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 3/4"-16; External Thread Fit: 2A; Internal Thread Fit: 2B; Material Grade/Class: C1215; System of Measurement: Inch; Thread Type: Coarse.
APPROVED VENDOR
Key Locking Insert: Heavy Wall, 4 Keys, 1/2"-20 Int Thrd Sz, 3/4"-16 Ext Thrd Sz, Plain, 10 PK (MPN 215-066106). Key specifications — Wall Type: Heavy Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 3/4"-16; External Thread Fit: 2A; Internal Thread Fit: 2B; Material Grade/Class: C1215; System of Measurement: Inch; Thread Type: Coarse.
Key Locking Insert: Thin Wall, 4 Keys, 1/2"-13 Int Thrd Sz, 5/8"-11 Ext Thrd Sz, Plain, Plain, 10 PK (MPN 215-066326). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 5/8"-11; External Thread Fit: 2A; Internal Thread Fit: 2B; Material Grade/Class: 303; System of Measurement: Inch; Thread Type: Fine.
APPROVED VENDOR
Key Locking Insert: Thin Wall, 4 Keys, 1/2"-13 Int Thrd Sz, 5/8"-11 Ext Thrd Sz, Plain, Plain, 10 PK (MPN 215-066326). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: 5/8"-11; External Thread Fit: 2A; Internal Thread Fit: 2B; Material Grade/Class: 303; System of Measurement: Inch; Thread Type: Fine.
Key Locking Insert: Thin Wall, 4 Keys, M10x1.5 Int Thrd Sz, M14x1.5 Ext Thrd Sz, Plain, Plain, 10 PK (MPN 215-066355). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: M14x1.5; Drill Bit Size: 11-1/2 mm; External Thread Fit: 2A; Internal Thread Fit: 2B; Material Grade/Class: 303; System of Measurement: Metric.
APPROVED VENDOR
Key Locking Insert: Thin Wall, 4 Keys, M10x1.5 Int Thrd Sz, M14x1.5 Ext Thrd Sz, Plain, Plain, 10 PK (MPN 215-066355). Key specifications — Wall Type: Thin Wall; Brand: APPROVED VENDOR; Compatible Tap Size: M14x1.5; Drill Bit Size: 11-1/2 mm; External Thread Fit: 2A; Internal Thread Fit: 2B; Material Grade/Class: 303; System of Measurement: Metric.