# KM GROM KM21 Seam Clamp

**URL:** https://aio.lv/en/product--km-grom-km21--12467019
**Data updated:** 2026-06-25 19:51 (EEST)
**Category:** Miscellaneous repair tools
**Manufacturer:** KM GROM
**Manufacturer code:** KM21
**EAN:** 5900111210105
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.99 €
**Prices and availability valid until:** 2026-08-06 23:59
**Price without VAT (21%):** 4.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--km-grom-km21--12467019

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.07.2026 | free |
| Pickup points | 29.07.2026 | 1.89 EUR |
| Courier delivery to door | 29.07.2026 | 4.99 EUR |

## Summary description

The KM GROM KM21 is a professional-grade seam clamp designed for secure gripping and processing of metal roofing seams. This tool ensures precise alignment and stability during installation or maintenance tasks. Built for durability and reliability, it is an essential accessory for roofing professionals working with standing seam metal systems, providing a firm hold for various sheet metal applications.

## Long description

The KM GROM KM21 Seam Clamp is a professional-grade tool engineered specifically for the secure gripping and precise processing of standing metal roofing seams. This robust clamp provides the stability required for high-quality installation and maintenance, ensuring that metal sheets remain perfectly aligned during complex roofing tasks. Designed for durability, it serves as an essential accessory for roofing professionals who demand reliability and consistent performance in demanding field conditions.
Advantages
The primary advantage of the KM GROM KM21 is its ability to provide a firm and consistent hold on metal seams, which significantly reduces the risk of slippage or misalignment during work. Its specialized construction allows for efficient handling of various sheet metal thicknesses, making it a versatile addition to any professional toolkit. The tool is built to withstand the rigors of daily use on construction sites, offering long-term reliability and helping to maintain the structural integrity of standing seam roofing systems.
Suitable for
Securing standing seam metal roofing panels
Aligning metal sheets during installation
Assisting in the folding and closing of roofing seams
Maintenance and repair of metal roof structures
When it may not be suitable
This clamp is specifically designed for standing seam metal roofing applications and may not be suitable for use on non-metal materials or roofing systems that do not utilize standard seam profiles. It is not intended for heavy-duty structural lifting or for use on materials that are prone to surface damage from high-pressure clamping.
Key specifications
Professional-grade metal construction
Designed for standing seam metal roofing
High-grip clamping mechanism
Durable finish for corrosion resistance
How to use
To use the KM GROM KM21, position the clamp over the desired section of the metal seam. Ensure the jaws are aligned correctly with the profile of the seam to achieve maximum contact. Tighten the clamping mechanism firmly until the tool is securely locked in place. Once the clamp is stable, you can proceed with your installation or maintenance task. After completing the work, release the tension mechanism carefully to remove the tool from the seam.
What to consider before purchase
Verify the compatibility of the clamp with your specific roofing seam profile
Ensure the tool size matches the thickness of the metal sheets being processed
Assess the quantity of clamps needed for your specific project scale
Usage recommendations
Always inspect the clamp for any signs of wear or mechanical damage before each use to ensure safe operation. Keep the clamping surfaces clean and free of debris to maintain optimal grip and prevent damage to the roofing material.

## FAQ

### How much does the KM GROM KM21 Seam Clamp cost, and is it available for purchase?

The price is 5.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1038 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 24.07.2026 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 KM GROM 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 KM GROM 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/12467019/68769304_large.webp