APPROVED VENDOR Key Locking Insert: Heavy Wall, 4 Keys, 5/16"-18 Int Thrd Sz, 1/2"-13 Ext Thrd Sz
The APPROVED VENDOR Key Locking Insert is a stainless steel 303 heavy-wall insert with 4 keys, 5/16"-18 internal thread and 1/2"-13 external thread, plain finish, sold in a 10-pack (MPN 215-066303). It features…
SKU 3G-OTH-535622
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Product Description
The APPROVED VENDOR Key Locking Insert is a stainless steel 303 heavy-wall insert with 4 keys, 5/16"-18 internal thread and 1/2"-13 external thread, plain finish, sold in a 10-pack (MPN 215-066303). It features coarse inch threads with 2A external and 2B internal thread fits, compatible with a 1/2"-13 tap size.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is a key locking insert used for?
A key locking insert repairs or reinforces tapped threads in softer materials like aluminum or plastic. The external keys lock the insert into the parent material, preventing rotation under load. This APPROVED VENDOR heavy-wall insert with 4 keys is ideal for demanding industrial applications requiring a durable, reusable thread.
What are the specifications of the APPROVED VENDOR key locking insert?
This insert has a 5/16"-18 internal thread and 1/2"-13 external thread, coarse inch threads with 2A external and 2B internal fits. It is made from stainless steel grade 303, has a heavy wall, plain finish, and includes 4 keys. Sold in a 10-pack, MPN 215-066303.
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 10-pack heavy-wall insert with 4 keys, MPN 215-066303.
How to install a key locking insert?
Drill and tap the hole to the insert's external thread size (1/2"-13). Use a key locking insert installation tool to drive the insert into the tapped hole until the keys are fully seated. The keys will lock into the parent material, preventing rotation. No thread-locking compound is typically required.
Used in
Common applications for APPROVED VENDORAPPROVED 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.









