D-Fixing Fire Rated Screws (pack of 100) 40mm long x 5.1mm Thread Width, 18th Edition Compliant

Model No. DSCREW
£9.98 Ex. VAT
This item requires:

Free delivery
(over £100 +VAT, applies to zone A and B only, £6 +VAT otherwise)

Normally In Stock

Click & Collect

Order online & collect in store

Our customers love us - read their reviews

Wishlist Ask a question Compare

The D-Fixings screws are fire-rated screws with a 40mm long shaft and close threads which combine to provide exceptional performance.

These D-Line D-Fixings screws are ideal for securing D-Line fire-rated Safe-D ranges and other electrical installation equipment in popular substrates - including masonry, plasterboard / breeze-block, concrete, brickwork and wood. 

The D-Fixings have been extensively tested, and are certified to hold Safe-D clips and cable loads up to 970°C for 2 hours, after withstanding stress vibrations and water sprays also.

In fire tests the D-Fixing screw threads remain securely embedded with no need for anchors or plastic wall plugs (which typically melt at 160°C).

D-Fixing Fire Rated Screws - Features

  • Dimensions: 40mm Length x 5.1mm Thread Width x 8.3mm Head Width
  • Note: a 4mm pilot hole required
  • It is certified for 2 hours at 970°C
  • It is fully safety tested and certified to BS5839 part 1 compliant
  • High melting point: >1200ºc melting point
  • It has a non-corrosive finish
  • There's no need for plastic wall plugs
  • It has excellent tensile strength, shear strength and pull-out load performance

D-Fixing Fire Rated Screws - Strength Test Information

  • Tensile strength: 12.8 kN / 1305 kg / 205 stone
  • Shear strength: 6.7 kN / 683 kg / 107 stone
  • Typical pullout load (C25 concrete)*: 5.8 kN / 591 kg / 93 stone
  • Typical pullout load (LBC common brick)*: 3.8 kN / 387 kg / 60 stone
  • Typical pullout load (C24 timber)*: 3.0 kN / 305 kg / 47 stone 
    *Pullout loads based on 35mm embedment, 4mm pilot hole


Follow us for exclusive offers and tips about lighting, switches and sockets

Get in touch

Telephone 020 7263 8007

Fax 020 7272 3007

Sparks Electrical Wholesalers Ltd, 659-661 Holloway Road, Archway, London, N19 5SE, United Kingdom
Registered in England. Company No. 2238028. VAT Reg No: GB 505 6899 17. Copyright © 2003-2021 SparksDirect

Award Winning Ecommerce from Cyber-Duck