# Wall anchor FISCHER 503788 – screw anchor / wall plug, pack of 4

**URL:** https://aio.lv/en/product--fischer-503788--12399167
**Data updated:** 2026-04-28 17:44 (EEST)
**Category:** Home Goods Accessories
**Manufacturer:** FISCHER
**Manufacturer code:** 503788
**EAN:** 4048962059342
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 39.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 32.64 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--fischer-503788--12399167

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

FISCHER 503788 screw anchor / wall plug, pack of 4. Designed to provide reliable fastening in solid and hollow substrates, this anchor set includes four pieces for securing fixtures where a screw-type wall plug is required. Suitable for general home improvement and light construction tasks requiring mechanical fixing with screws.

## Long description

The Fischer injection anchor sleeve FIS H K is designed for mortar-saving installation of threaded rods and internal threaded anchors in perforated brick masonry. Its optimized lattice structure reduces the amount of injection mortar required by allowing the mortar to be pressed through the sleeve and form a secure mechanical interlock with the brick, transferring loads into the base material. The sleeve supports pre-positioned installation and can bridge non-load-bearing layers when used with compatible Fischer injection mortars such as FIS V, FIS VW HIGH SPEED, FIS VS LOW SPEED, FIS VL, FIS Green, FIS P Plus and FIS P. Observe approvals for the chosen mortar.
Advantages
The lattice structure lowers mortar consumption while creating a reliable form-fit connection in perforated brick. Centring blades accommodate anchor rods of different diameters to simplify inventory and installation. A barbed hook design prevents the sleeve from falling out during overhead work. The system is ETA-approved for targeted fastening tasks.
Suitable for
Anchoring threaded rods (FIS A) and internal threaded anchors (FIS E) in perforated brick masonry
Installations where reduced injection mortar consumption is desired
Pre-positioned installations and bridging non-load-bearing layers
Indoor and sheltered outdoor applications using approved injection mortars
When it may not be suitable
The injection anchor sleeve is specifically optimised for perforated brick; it is not intended as a universal solution for all masonry types such as solid concrete or natural stone unless the system and mortar approvals explicitly allow those substrates. Also ensure the selected injection mortar is approved for the intended base material and load case before use.
Key specifications
Material: injection anchor sleeve with lattice/grating structure for mortar flow
Application: designed for perforated brick masonry
Compatible mortar types: epoxy/hybrid/injection mortars from the FIS series (see manufacturer for approved variants)
Installation method: pre-positioned setting with injection mortar pressed through sleeve
Features: centring blades for varied rod diameters; barbed hook to prevent falling during overhead work
How to use
Drill the hole to the specified diameter and depth for the chosen sleeve and clean it thoroughly. Insert the injection anchor sleeve to the pre-positioned depth, then inject the approved Fischer injection mortar so that it is pressed through the lattice structure into the perforated brick. Insert the threaded rod or internal threaded anchor and tighten to the required torque once the mortar has cured according to the mortar manufacturer’s instructions.
What to consider before purchase
Confirm compatibility of the sleeve size with the threaded rod or internal threaded anchor you plan to use
Check that the chosen Fischer injection mortar is approved for the perforated brick and the intended load
Ensure the sleeve is suitable for pre-positioned installation and for bridging any non-load-bearing layers present
Usage recommendations
Use the FIS H K anchor sleeve with Fischer-approved injection mortars and follow the manufacturer’s curing times and installation torques to achieve the intended load performance in perforated brick masonry.

## Specifications

| Feature | Value |
|---|---|
| Quantity per pack | 4 pc(s) |

## FAQ

### How much does the FISCHER 503788 screw anchor, pack of 4 cost, and is it available for purchase?

The price is 39.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 15 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 14.07.2026 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. 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 FISCHER 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 FISCHER 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/12399167/68684647_large.webp