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

E-Z LOK Heavy Wall Self-Locking Insert, #10-32 Internal, 3/8-16 External, 5-Pack - Heavy Wall Self-Locking Inserts
E-Z LOKHeavy Wall Self-Locking Inserts

E-Z LOK Heavy Wall Self-Locking Insert, #10-32 Internal, 3/8-16 External, 5-Pack

The E-Z LOK Self Locking Thread Insert is a heavy-wall, inch-system insert with #10-32 UNF internal threads and 3/8"-16 UNC external threads, supplied in a 5-pack. It features a 2A external thread fit and 2B internal…

SKU 3G-OTH-534187

Also listed as: 303332PK5 · 303 332 PK5

Brand
E-Z LOK
Item
Heavy Wall Self-Locking Insert, #10-32 Internal, 3/8-16 External, 5-Pack
Category
Heavy Wall Self-Locking Inserts
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

E-Z LOK
Manufacturer Part Number
303-332-PK5
Type
#10-32 Int Thrd Sz, Plain, 5 PK
Wall Type
Heavy Wall
Ext Thrd Sz
3/8"-16
Thread Type
UNF Internal/UNC External
Compatible Tap Size
3/8"-16
External Thread Fit
2A
Internal Thread Fit
2B
System of Measurement
Inch

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

E-Z LOK Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The E-Z LOK Self Locking Thread Insert is a heavy-wall, inch-system insert with #10-32 UNF internal threads and 3/8"-16 UNC external threads, supplied in a 5-pack. It features a 2A external thread fit and 2B internal thread fit, compatible with a 3/8"-16 tap size. 3G Electric interprets this demand and sources the exact OEM part (MPN 303-332-PK5) across 14 industrial departments, with specialist depth in fastening and assembly solutions.

Frequently Asked Questions

What is E-Z LOK Self Locking Thread Insert used for?

E-Z LOK Self Locking Thread Inserts repair or reinforce stripped threads in metal assemblies. The heavy-wall design suits high-stress applications like automotive, machinery, and industrial equipment. 3G Electric sources this exact OEM part (MPN 303-332-PK5) across 14 industrial departments, with specialist depth in fastening and assembly solutions.

What are the specifications of E-Z LOK 303-332-PK5 thread insert?

This heavy-wall insert has #10-32 UNF internal threads and 3/8"-16 UNC external threads, with 2B internal and 2A external thread fits. It is inch-system, compatible with a 3/8"-16 tap size, and supplied in a 5-pack. 3G Electric sources the exact OEM part (MPN 303-332-PK5) for global delivery.

Where to buy E-Z LOK thread inserts in worldwide?

3G Electric supplies E-Z LOK Self Locking Thread Inserts worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver the exact OEM part (MPN 303-332-PK5) to your facility. Contact us for availability and lead time on this heavy-wall, #10-32 internal thread insert.

How to install E-Z LOK heavy wall thread inserts?

Install E-Z LOK heavy wall inserts by drilling to the recommended hole size, tapping with a 3/8"-16 UNC tap, then driving the insert flush using a standard installation tool. The self-locking feature secures the insert without adhesives. 3G Electric sources this OEM part (MPN 303-332-PK5) and can advise on tooling.

E-Z LOK Products

3G Electric supplies E-Z LOK heavy wall self-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 E-Z LOK

View all E-Z LOK parts
This 10-pack of heavy wall self-locking inserts is used to repair or reinforce stripped or damaged threads in metal assemblies. Each insert has a 5/16"-18 internal thread and a 1/2"-13 external thread, requiring a 1/2"-13 tap. The external thread fit is 2A, internal thread fit is 2B, and the thread type is coarse inch
E-Z LOK
This 10-pack of heavy wall self-locking inserts is used to repair or reinforce stripped or damaged threads in metal assemblies. Each insert has a 5/16"-18 internal thread and a 1/2"-13 external thread, requiring a 1/2"-13 tap. The external thread fit is 2A, internal thread fit is 2B, and the thread type is coarse inch
Metric heavy wall self-locking thread insert with M5-0.80 internal thread and M8-1.25 external thread. Compatible tap size M8-1.25, internal thread fit 6H, external thread fit 6G. Used to repair or reinforce stripped threads in metal or plastic, providing vibration-resistant threads for industrial machinery and equipment maintenance. Supplied in a 5-pack
E-Z LOK
Metric heavy wall self-locking thread insert with M5-0.80 internal thread and M8-1.25 external thread. Compatible tap size M8-1.25, internal thread fit 6H, external thread fit 6G. Used to repair or reinforce stripped threads in metal or plastic, providing vibration-resistant threads for industrial machinery and equipment maintenance. Supplied in a 5-pack
Heavy wall self-locking thread insert with #10-24 internal thread and 3/8"-16 external thread. Coarse thread, inch system, external thread fit 2A, internal thread fit 2B. Compatible tap size 3/8"-16. Used to repair or reinforce threads in metal or plastic applications requiring vibration resistance
E-Z LOK
Heavy wall self-locking thread insert with #10-24 internal thread and 3/8"-16 external thread. Coarse thread, inch system, external thread fit 2A, internal thread fit 2B. Compatible tap size 3/8"-16. Used to repair or reinforce threads in metal or plastic applications requiring vibration resistance
This heavy wall self-locking insert provides a permanent threaded repair or reinforcement in metal or plastic. It features M3-0.50 internal threads with 6H fit and M6-1.00 external threads with 6G fit, compatible with M6-1.00 tap. Supplied in a 5-pack for multiple installations
E-Z LOK
This heavy wall self-locking insert provides a permanent threaded repair or reinforcement in metal or plastic. It features M3-0.50 internal threads with 6H fit and M6-1.00 external threads with 6G fit, compatible with M6-1.00 tap. Supplied in a 5-pack for multiple installations
Heavy wall self-locking thread insert with 1/4"-28 UNF internal thread and 7/16"-14 UNC external thread. Features 2B internal and 2A external thread fits. Compatible with 7/16"-14 tap. Used to repair or reinforce tapped holes in metal, plastic, or wood. Sold as a 5-pack
E-Z LOK
Heavy wall self-locking thread insert with 1/4"-28 UNF internal thread and 7/16"-14 UNC external thread. Features 2B internal and 2A external thread fits. Compatible with 7/16"-14 tap. Used to repair or reinforce tapped holes in metal, plastic, or wood. Sold as a 5-pack
Steel heavy wall self-locking insert with 5/8"-11 internal thread (2B fit) and 7/8"-9 external thread (2A fit). Compatible with 7/8"-9 tap. Used to repair or reinforce stripped threads in metal assemblies, providing vibration-resistant fastening in industrial applications
E-Z LOK
Steel heavy wall self-locking insert with 5/8"-11 internal thread (2B fit) and 7/8"-9 external thread (2A fit). Compatible with 7/8"-9 tap. Used to repair or reinforce stripped threads in metal assemblies, providing vibration-resistant fastening in industrial applications
Heavy wall self-locking insert with #10-32 UNF internal thread and 3/8-16 UNC external thread. External thread fit 2A, internal fit 2B. Compatible with 3/8-16 tap. Used to repair or reinforce threads in metal assemblies where high pull-out strength is required
E-Z LOK
Heavy wall self-locking insert with #10-32 UNF internal thread and 3/8-16 UNC external thread. External thread fit 2A, internal fit 2B. Compatible with 3/8-16 tap. Used to repair or reinforce threads in metal assemblies where high pull-out strength is required
Heavy wall self-locking thread insert with 1/4"-20 internal thread (2B fit) and 7/16"-14 external thread (2A fit). Coarse thread, inch system, compatible with 7/16"-14 tap. Supplied in a 10-pack. Used to repair or reinforce stripped threads in metal assemblies
E-Z LOK
Heavy wall self-locking thread insert with 1/4"-20 internal thread (2B fit) and 7/16"-14 external thread (2A fit). Coarse thread, inch system, compatible with 7/16"-14 tap. Supplied in a 10-pack. Used to repair or reinforce stripped threads in metal assemblies