6.3x32mm Torfix® CSA-F Countersunk Concrete Screws

Product Code: B521-416

Our Torfix® CSA Concrete Screw Anchors cuts its own threads into concrete, brick and hollow block timber battens, trunking, track and general components into concrete and masonry.

They are available in two diameters 4.8mm and 6.3mm and either countersunk or hexagon/slotted head styles. As a guide these screws should have a minimum of 25mm embedment into the substrate so for example a 57mm long version will have a maximum fixture thickness of 32mm.

Replaces small diameter expansion anchors, plugs and screws in light to medium duty applications. The special blue coating provides the Torfix® CSA Concrete Screw Anchors with excellent rust resistance. As these fasteners a fully steel they provide greater fire resistance than for example plugs and screws making them ideal for fire lining and fire critical applications. As these screws don’t rely on expansion to obtain a fixing, they are a better fixing solution for precast concrete beams, ceilings, soffits etc. They are also ideal for use in ‘Bison’ type floors or beams. 

Also known as ‘Tapcon’ screws, masonry screws, concrete anchors, blue screws, concrete fasteners

To install, drill a pilot hole using either the special Torfix® CSA 4.8 or 6.3mm SDS drill bits, slide the Torfix® CSA sleeve adaptor over the drill bit and with either the hex driver or a phillips bit drive the screw home. 

Further technical details are available on request.

Key Features:

  • Proprietary thread geometry for enhanced grip
  • Advanced corrosion resistance for prolonged durability
  • Easy installation saving time and labour
  • Versatile applications in concrete, brick, and block substrates
  • All metal for improved fire resistance
  • Supplied in Boxes of 100

For best efficiency use with our B551-100 Torfix® CSA Concrete Screw Anchor Installation Kit (for 4.8mm and 6.3mm)

£18.03 + VAT per box of 100

£0.1803 + VAT Each

Box Quantity : 100 In Stock

People who purchased this product, also purchased....


View our 5 Star Service Promise video

Buyer, Charcon Construction Products

"I am re-assured each time I place an order with Fixfirm that my delivery will be received the next day. On the odd time that an item is out of stock I receive a phone call from Fixfirm advising me when delivery will be, with the option to choose an alternative product. Customer service is a priority with Fixfirm"

Site Manager, Bowmer & Kirkland

"So much more than the name suggests ..top features include great service, comprehensive catalogue, online and manually and next day delivery. The confirmation emails make it easy to monitor your orders and run your site more efficiently."

Business Development Manager, Brook & Mayo

"We have never had a problem with Fixfirm, it’s right on our doorstep, very rarely is there something not available, staff are always friendly and helpful."

Managing Director, Premier Engineering

"Front desk staff have a vast knowledge of stocked items, they are very helpful at sorting out any problems we have and look after our needs they well. The call and collect service is fabulous, I totally recommend Fixfirm as the place to go too."

Eco Offsite Production Limited

"The orders that we place are dealt with efficiently and effectively, which gives us peace of mind that they will arrive on time. The pricing of these are competitive and the scope of products satisfies our needs within our industry."

What are the benefits of opening a FixFirm Online Account (Procure-site)?

Creating an online Procure-site account will give you access to discount prices on all of our products and will allow you to place your order anytime or anywhere.

Procure-site also includes Purchasing, Finance and Cost Control Features for a wide range of different employee types within these disciplines.

If you are interested in registering for an account, simply click here. It only takes 2 minutes to register and you will be allocated your prices immediately.

Once you start to order from us regularly, you will able to view past orders and track deliveries through your Procure-site account.

For a video of how Procure-site works, please click here.

What Delivery Service(s) do FixFirm offer?

Our next day, nationwide delivery service is provided by Parcelforce & Tuffnells who enable us to provide you with a reasonably priced, consistent delivery service.

We can deliver bulky products and items that are up to six metres long. For larger consignments, we use a reliable pallet network with book-in and tail-lift options, if required.

FixFirm will do all we can to ensure our goods arrive with you on time and in good condition. Please ensure someone is available to sign for the delivery on the designated delivery day, that there is adequate access to sites and suitable hard standing for delivery vehicles. We reserve the right to make additional charges for attempted deliveries or excessive waiting times.

For orders to the Scottish Highlands and Islands, the Isle of Man, Isle of Wight, Northern Ireland, Scilly Isles and Guernsey, please allow up to 2-3 working days from placing your order.

Can I track my order?

You can track the progress of your delivery by logging into your Procure-site FixFirm account and viewing the Order History page. For a video of how Procure-site works, please click here.

Can I order and pick up my goods on the same day?

Yes, our Trade Counter ‘Fast Lane’ Service allows you to do this.

Simply place your order by phone, fax or email and we’ll have it ready for you to collect when you arrive. Our Lincoln based Trade Counter and Distribution Centre is open from 7 am to 5 pm with on-site parking at Pyke Rd, Lincoln, LN6 3QS.

Our trade counter service provides you with access to a friendly and efficient service and advice. Please note - ideally we ask for 30 minutes’ notice to be sure you aren’t kept waiting.

How do I return faulty items?

If you do receive some items that are faulty then, please give us a call and we arrange for the items to be collected from you. If you inform by 10 am we will endeavour to pick up and the goods the same day. If required, we will also send replacement items on the same day and re-credit your account once we have received and checked the faulty items.

Do you offer the Same day or Specialist Deliveries?

FixFirm recognises there are times when a special Same day or night time delivery is required to keep projects moving! Please contact our sales team who will be happy to explore costs and options with you to meet your urgent requirements.

Do you offer International Deliveries?

FixFirm predominantly serves the UK market but we can supply items internationally. Additional freight and possibly customs charges may apply for International deliveries, we advise you check this prior to placing an order.

What are our office Opening Hours?

Our Customer Service Team is available from between 7 am and 5 pm, Monday to Friday on 0800 594 44 44.

Do you have any customer testimonials?

Yes, please click here to view what our customers say about us

Do you have a product catalogue?

Yes, to view all our products in one please, please click here to order our Latest Catalogue.


Accuracy of Content and Information on the Website

Fixfirm does its best to ensure all content and information on the Website is accurate. However, Fixfirm does not warrant the accuracy and completeness of such content and information, makes no representations that the content and information on the Website is accurate, up to date or complete and accepts no liability for any loss or damage caused by inaccurate, out of date or incomplete content or information. Fixfirm may make changes to the content and information on the Website at any time without notice.

For our Full Terms and Conditions, please click here.