# Ring terminal Erko KOE M12 x 35 mm insulated copper, pack 50 pcs

**URL:** https://aio.lv/en/product--erko-koe12-3550--12257465
**Data updated:** 2026-04-27 22:27 (EEST)
**Category:** Tool kits and accessories
**Manufacturer:** Erko
**Manufacturer code:** KOE\_12-35/50
**EAN:** 5905912817485
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 63.99 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 52.88 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--erko-koe12-3550--12257465

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

Insulated copper ring terminals Erko KOE M12 x 35 mm, pack of 50 pieces. Designed for secure bolted connections on M12 studs, these insulated crimp terminals provide electrical contact with a 35 mm conductor/insulation length as specified in the product name. Suitable for electrical wiring, control panels, automotive or industrial applications where reliable ring-type crimp connections are required.

## Long description

Erko KOE M12 x 35 mm insulated copper ring terminals, pack of 50 pieces, are crimp-type connectors designed to form reliable bolted connections on M12 studs. The terminals have an insulated sleeve to protect against accidental shorting and a copper conductor barrel to ensure stable electrical contact. Each terminal is sized for a 35 mm conductor/insulation length as indicated in the product name and is intended for use in wiring, control panels, automotive grounding and many industrial installations where ring-style terminations are required.
Advantages
Insulated copper construction combines corrosion resistance and good electrical conductivity while the insulation reduces the risk of short circuits and provides mechanical strain relief. The ring shape ensures a secure bolted connection to threaded studs or posts and the crimp barrel is suitable for tool-based compression to provide consistent, low-resistance joints. Pack quantities of 50 make the product convenient for larger wiring jobs, panel assembly and maintenance tasks.
Suitable for
 Bolted connections on M12 studs and posts
 Electrical wiring in control cabinets and junction boxes
 Automotive grounding and battery connections
 Industrial machinery and equipment earthing
 Field service, installation and maintenance work
When it may not be suitable
These ring terminals are designed specifically for M12-sized studs and for cables compatible with the stated conductor/insulation length; they will not fit larger or smaller stud sizes without adapter hardware. They are intended for crimped terminations and may not be suitable where soldered joints, insulation-displacement connectors or screw-clamp terminations are required.
Key specifications
 Material: copper conductor with insulating sleeve
 Ring inner diameter: sized for M12 studs
 Conductor/insulation length: 35 mm
 Termination type: crimp ring terminal
 Pack quantity: 50 pieces
How to use
Strip the cable to expose the conductor to the length appropriate for the terminal barrel, then insert the conductor fully into the copper barrel. Use a suitable crimping tool matched to the terminal size to compress the barrel until a secure mechanical and electrical joint is achieved. Slide the insulated sleeve into position if it becomes displaced during crimping. Place the ring over the M12 stud or post, then secure with the appropriate nut and washer, ensuring proper torque per the application’s requirements.
What to consider before purchase
 Verify compatibility with M12 stud or post diameter
 Confirm cable cross-section and insulation strip length match the terminal barrel dimensions
 Ensure crimping tools suitable for copper ring terminals are available
 Evaluate environmental factors (vibration, moisture, corrosion) to determine if additional protection is needed
Usage recommendations
Use a calibrated crimping tool appropriate for the terminal size to ensure low-resistance joints; apply proper torque to the stud connection and, where applicable, use washers or lock-washers to maintain mechanical integrity in vibrating environments. For outdoor or corrosive conditions consider additional sealing or protective measures.

## FAQ

### How much does the Ring terminal Erko KOE M12 x 35 mm, 50 pcs cost, and is it available for purchase?

The price is 63.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 16.07.2026 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 Erko 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 Erko 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/12257465/68168583_large.webp