DEWALT Self Locking Thread Insert: Heavy Wall, 3/8"-16 Int Thrd Sz, 11/16 in Overall Lg
The DEWALT Self Locking Thread Insert is a heavy-wall, inch-system insert with a 3/8"-16 coarse internal thread (2B fit) and an 11/16 in overall length, supplied in a 50-pack (MPN 6401SD-PWR). Designed for secure…
SKU 3G-OTH-534200
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Product Description
The DEWALT Self Locking Thread Insert is a heavy-wall, inch-system insert with a 3/8"-16 coarse internal thread (2B fit) and an 11/16 in overall length, supplied in a 50-pack (MPN 6401SD-PWR). Designed for secure thread repair or reinforcement in industrial applications, this OEM insert provides reliable locking performance.
Frequently Asked Questions
What is a DEWALT Self Locking Thread Insert used for?
The DEWALT Self Locking Thread Insert (MPN 6401SD-PWR) is used for repairing or reinforcing damaged internal threads in metal or plastic components. Its heavy-wall design and 3/8"-16 coarse thread provide a secure, vibration-resistant hold in industrial equipment, machinery, and tooling applications.
What are the specifications of the DEWALT 6401SD-PWR thread insert?
This DEWALT heavy-wall self-locking insert has a 3/8"-16 internal thread size with a 2B fit, 11/16 in overall length, and coarse thread type. It is inch-system, supplied in a 50-pack (MPN 6401SD-PWR). The heavy wall provides extra strength for demanding repairs.
Where to buy DEWALT thread inserts worldwide?
3G Electric supplies DEWALT self-locking thread inserts (MPN 6401SD-PWR) 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 this 50-pack of heavy-wall inserts.
How to install a DEWALT self-locking thread insert?
To install a DEWALT self-locking thread insert, drill out the damaged thread to the specified tap drill size, tap the hole with the correct STI tap, then use an installation tool to drive the insert flush or slightly below the surface. Follow standard thread-repair practices for best results.
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3G Electric supplies DEWALT heavy wall self-locking inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.



