Hillman Expansion Nut Neoprene Rubber Leakproof Blind Fastening 1/4"-20 x 5/8" Black – 15 Pack
Product details
| Management number | 250212621 | Release Date | 2026/09/17 | List Price | US$5.28 | Model Number | 250212621 | ||
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Product Description An expansion or well nut consists of a flanged neoprene bushing with a threaded nut embedded in the non flanged end. It is used in blind bolt holes to fasten a piece and seal the bolt hole. The nut is inserted into the hole flange side up, as the bolt is screwed into the nut the rubber on the other side of the hole expands and seals the bolt hole. From the Manufacturer An expansion or well nut consists of a flanged neoprene bushing with a threaded nut embedded in the non flanged end. It is used in blind bolt holes to fasten a piece and seal the bolt hole. The nut is inserted into the hole flange side up, as the bolt is screwed into the nut the rubber on the other side of the hole expands and seals the bolt hole.
- LEAKPROOF BLIND FASTENING: Expansion nuts seal bolt holes to prevent leaking; the rubber body expands behind the surface to create a watertight seal.
- SAFE FOR BLIND AND CLOSED-END HOLES: Designed for use in blind holes and closed-end surfaces where backside access is not possible during installation.
- RUBBER AND STEEL CONSTRUCTION: Neoprene rubber combined with a steel threaded insert absorbs vibration and seals the bolt hole reliably.
- PANEL AND MARINE APPLICATIONS: Ideal for panel mounting, equipment installation, automotive components, and marine use requiring sealed fastening.
- TRUSTED HILLMAN FASTENING SOLUTIONS: Hillman hardware products are engineered for consistent quality, dependable performance, and reliable fastening across construction, repair, and home improvement applications.
| UPC | 008236028317 |
|---|---|
| ASIN | B00I2VTERO |
| Brand | Hillman |
| Color | Black |
| Model | 3326 |
| Set Name | 15 Expansion Nuts |
| Size Name | 5/8 Inch |
| Metal Type | Brass |
| Unit Count | 15 Count |
| Drive Style | One Way |
| Item Weight | 1.76 ounces |
| Part Number | 3326 |
| Thread Size | 1/4 |
| Thread Type | Unified National Coarse |
| Finish Types | Unfinished |
| Grade Rating | industrial |
| Manufacturer | The Hillman Group |
| Thread Class | Class 2 |
| Thread Style | Right Hand |
| Fastener Type | Flange |
| Item Diameter | 0.63 inches |
| Material Type | Brass |
| Exterior Finish | Plain |
| Item Dimensions | 1.43 x 2.46 x 1.65 inches |
| Number Of Items | 15 |
| Thread Coverage | Partially Threaded |
| Number of Pieces | 15 |
| Outside Diameter | 0.63 inches |
| Screw Head Style | Hex |
| Inside Thread Size | #4 |
| Compatible Groove Diameter | 0.63 inches |
| Global Trade Identification Number | 00008236028317 |
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Flange Nuts
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