# Self-tapping screw HiSmart NV822348 6x25 mm stainless steel with EPDM washer

**URL:** https://aio.lv/en/product--hismart-nv822348--11507595
**Data updated:** 2025-12-31 08:37 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** HiSmart
**Manufacturer code:** NV822348
**EAN:** 9990000822348
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 460.49 €
**Prices and availability valid until:** 2026-08-21 23:59
**Price without VAT (21%):** 380.57 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hismart-nv822348--11507595

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.07.2026 | free |
| Pickup points | 03.08.2026 | 1.79 EUR |
| Courier delivery to door | 03.08.2026 | 4.99 EUR |

## Summary description

Self-tapping screw HiSmart NV822348, size 6x25 mm, made of stainless steel and fitted with an EPDM washer. Designed for creating its own thread in thin metal or plastic substrates, it provides corrosion resistance from the stainless-steel body and watertight sealing from the EPDM washer. Suitable for roofing, cladding, and general fastening where a sealed connection is required.

## Long description

Self-tapping screw HiSmart NV822348, size 6x25 mm, made of stainless steel A2 and fitted with an EPDM washer. Designed to form its own thread in thin metal substrates, this fastener combines corrosion resistance from the stainless-steel body with a watertight seal provided by the EPDM washer. The screw is intended for use on pitched roofs and is compatible with several PV mounting systems.
Advantages
The HiSmart 6x25 mm self-tapping screw offers a hexagonal head for easy torque application and is suitable for sheet steel from 0.4 mm and aluminum from 0.5 mm up to 1.25 mm thickness. Constructed from stainless steel A2 with an EPDM sealing washer, it provides corrosion resistance and reliable watertight fastening while remaining compatible with commonly used PV mounting rails.
Suitable for
Fastening photovoltaic panels to pitched roofs
Mounting on sheet steel with 0.4 mm thickness
Mounting on aluminum sheets from 0.5 mm to 1.25 mm thickness
Use with PV mounting systems K2 1005207, Dome V, S-Dome, MultiRail
Key specifications
Model: HiSmart NV822348
Size: 6 x 25 mm (diameter x length)
Material: stainless steel A2 + EPDM washer
Head shape: hexagonal
Suitable substrates: steel, aluminum
Application: pitched roof
Pack quantity: 4000 pcs (total weight approx. 8 g per piece)
How to use
Place the screw through the PV mounting bracket and align with the metal sheet. Using a suitable hex driver or socket, drive the self-tapping screw perpendicular to the substrate until the EPDM washer compresses and creates a watertight seal. Avoid over-torquing to prevent damage to the washer or stripping the formed thread. Ensure the substrate thickness falls within the specified range for reliable fastening.
Usage recommendations
Use a torque-controlled driver set to the manufacturer's recommended torque for 6 mm self-tapping screws where available; inspect seals periodically and replace screws showing corrosion or degraded EPDM washers.

## FAQ

### How much does the Self-tapping screw HiSmart NV822348 6x25 mm cost, and is it available for purchase?

The price is 460.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 29.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Self-tapping screw HiSmart NV822348 6x25 mm be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All HiSmart products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized HiSmart service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11507595/66523641_large.webp