E-Z LOK Thread Insert, 0.3125-18 Internal, 0.5-13 External, 10 ct
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- THREADED INSERTS FOR METAL – E-Z LOK Thread Inserts for metal. Solid threaded inserts that are strong, easy to install, and self-locking. For optimal holding power in metal.
- INSTALL WITH STANDARD TOOLS – 12L14 Carbon steel threaded inserts. Install with standard tools. No special drills, taps, or special installation tools are needed.
- QUICKLY REPAIR DAMAGED THREADS – Quickly repair damaged threads or reinforce tapped holes in soft metals with these steel thread inserts.
- FOR USE WITH APPLICATIONS – The threaded inserts are designed for use with soft metals: aluminum, cast iron, magnesium, etc.
- STRONG THREADS MADE EASY – Simply drill the hole with a standard drill. Tap the hole with a standard tap. Turn in the insert with a screwdriver, bolt/jam nut, or an E-Z LOK drive tool.
Estimated shipping
Select a product to estimate shipping.E-Z Threaded Inserts for Metal
Protect tapped holes from stripping and wear and quickly repair damaged threads in soft metal with the E-Z LOK Thread Inserts for metal. Solid threaded inserts that are strong, easy to install, and self-locking. For optimal holding power in metal. The 12L14 Carbon steel thread inserts install with standard tools. No special drills, taps, or special installation tools are needed. The inserts are designed for use with soft metals such as aluminum, cast iron, magnesium, etc. An ideal solution for repairing or reinforcing tapped holes in metal.
Simply drill the hole with a standard drill. Tap the hole with a standard tap. Turn in the insert with a screwdriver, bolt/jam nut, or an E-Z LOK drive tool. The pre-applied adhesive on the external threads activates during installation and securely locks the insert in place.
Features
- Quickly repair damaged threads and protect tapped holes
- 12L14 Carbon steel solid inserts
- Install with standard tools
- Self-Locking: Pre-applied adhesive activates upon installation
- Vibration Resistant: Adhesive secures the insert into place
- Seals against Liquids/Gasses: solid threaded inserts are pressurized up to 6,000 psi.
- Made in the USA
Product details





| Main Specification | |
|---|---|
| Metal Type | Alloy Steel or Carbon Steel |
| Manufacturer | E-Z LOK |
| Unit Count | 10 Ounce |
| Exterior Finish | Phosphate |
| Thread Coverage | Fully Threaded |
| Outside Diameter | 0.5 Inches |
| Brand | E-Z Lok |
| UPC | 839137000627 |
| Fastener Type | Insert |
| Item Diameter | 0.5 Inches |
| Number of Pieces | 10 |
| Thread Size | 5/16"-18 |
| Material | Carbon Steel |
| Colour | Red |
| Thread Type | Unified National Coarse |
| Item Weight | 0.27 g |
| Product information | |
| Set Name | E-Z LOK Threaded Insert Set (10 Piece) |
| Technical Details | |
| Part Number | 329-5 |
| Model | 329-5 |
| Inside Thread Size | 5/16"-18 |
| Material Type | Carbon Steel |
| Number Of Items | 10 |
| Thread Style | Right Hand |
| Thread Class | Class 2B |
| Compatible groove diameter | 0.42 inches |
| Maximum Shear Strength | Several hundred MPa |
| Style | |
| Finish Types | Phosphate |
| Measurements | |
| Item Dimensions | 1 x 1 x 1 inches |
| Others | |
| Item Highlight | Designed for metal repair applications or 12L14 Carbon Steel construction or 0.484 in overall length |
| Product Type | Thread Locking Inserts |
| Grade Rating | C12L14 |
| Size Name | 27/64" |
| Screw Head Style | Solid Wall |





