# Self-drilling metal screws Celo 4.2×13 mm zinc-coated CNBOP pack of 500

**URL:** https://aio.lv/en/product--celo-942137504k--12375903
**Data updated:** 2026-04-26 20:47 (EEST)
**Category:** Miscellaneous repair tools
**Manufacturer:** Celo
**Manufacturer code:** 942137504K
**EAN:** 8425586109459
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 41.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 34.29 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--celo-942137504k--12375903

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

Pack of 500 Celo self-drilling screws for metal, size 4.2×13 mm with zinc coating and CNBOP designation. Designed for fastening thin metal sheets and profiles without pre-drilling, these screws feature an integrated drilling tip for quick installation on steel and similar substrates. Suitable for construction, roofing, HVAC and metalworking tasks.

## Long description

Pack of 500 Celo self-drilling metal screws, size 4.2×13 mm, zinc-coated and marked CNBOP. These fasteners combine a self-drilling tip with a threaded shank to allow direct installation into thin steel sheets, light metal profiles and similar substrates without prior hole preparation. The zinc coating provides basic corrosion resistance suitable for many indoor and covered outdoor applications. The screw geometry and drive are intended for quick, repetitive fastening work used in construction, roofing, ventilation and metal fabrication.
Advantages
Self-drilling tip eliminates the need for separate drilling, reducing installation time and tool changes. The compact 4.2×13 mm dimensions are suited to fastening thin-gauge metal without excessive protrusion. Zinc coating offers a protective layer against corrosion in non-demanding environments. Pack quantity of 500 supports larger projects or repeated small jobs, lowering the need for frequent reordering.
Suitable for
Fastening thin steel sheets and metal roofing panels
Attaching light-gauge metal profiles and trims
HVAC ductwork assembly and mounting brackets
General metalworking tasks where self-drilling screws are required
When it may not be suitable
These screws are designed for thin metal and light structural attachments; they are not intended for heavy structural loads or thick steel where higher-strength or larger fasteners are required. The zinc coating provides moderate corrosion protection but is not suitable for prolonged exposure to highly corrosive environments such as marine or chemically aggressive conditions.
Key specifications
Size: 4.2 × 13 mm (diameter × length)
Head and drive: screwdriver-compatible head for rapid installation
Tip type: integrated self-drilling tip for metal
Coating: zinc-coated for basic corrosion resistance
Quantity: 500 pieces per pack
How to use
Select an appropriate screwdriver or powered driver with the correct bit for the screw head. Position the screw perpendicular to the sheet or profile to ensure a clean drill and thread engagement. Apply steady pressure and moderate speed to allow the self-drilling tip to penetrate the metal; avoid excessive torque once full penetration is achieved to prevent stripping the head or damaging the threads. For best results, ensure the mating substrate thickness is within the recommended range for a 4.2×13 mm self-drilling screw.
What to consider before purchase
Confirm substrate thickness and material to ensure the 13 mm screw length provides adequate engagement.
Verify driver compatibility with the screw head to prevent cam-out or damage.
Assess environmental exposure—choose a different coating or material for highly corrosive or external coastal use.
Usage recommendations
Use a controlled-speed driver and appropriate bit, start perpendicular to the surface, and avoid over-torquing. Store the screws in a dry place to maintain the zinc coating’s effectiveness.

## FAQ

### How much does the Celo self-drilling screws 4.2×13 mm CNBOP cost, and is it available for purchase?

The price is 41.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 999 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 09.07.2026 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. All transactions are 100% secure and encrypted.

### 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 Celo 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 Celo 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/12375903/68521151_large.webp