Timco Self Drilling Screws – Light Steel – Exterior Bi-Metal – Hex Head – 5.5mm x 100mm – Box of 100

Pack Quantity:
100
SKU: BML100

5.5 x 100mm bi metal self drilling screws for fixing metal to light steel up to 5mm. Stainless steel body, No.3 drill point and no pre-drilling required.

£57.49 ex VAT(£68.99 inc VAT)

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Description

These 100mm bi metal self drilling screws fix metal directly to light section steel up to 5.0mm. Because of the hardened No.3 drill point, they cut through steel quickly and remove the need for pre-drilling.

At the same time, the A2-304 stainless steel body provides excellent corrosion resistance. This combination delivers fast drilling performance along with long-term durability. As a result, 100mm bi metal self drilling screws are ideal for external and exposed applications.

The hex head design provides strong drive engagement and better control during installation. In addition, the fully threaded 60° self-tapping thread ensures a secure and consistent fixing.

Key Features

  • Bi-metal construction with A2-304 stainless steel body
  • Hardened carbon steel No.3 drill point
  • Designed for light steel up to 5.0mm
  • 60° self-tapping thread for secure fixing
  • Fully threaded for strong hold
  • Hex head for improved drive control
  • Corrosion Rating 4 for external environments

Typical Applications

  • Metal to metal fixing in light steel
  • Cladding and sheet metal installation
  • External construction applications
  • General fixing where sealing is not required

These screws are manufactured for steel substrates and perform reliably in urban and industrial environments with moderate salt exposure.

Features
Weight 1.435 kg
Brand

Timco

Corrosion Rating (1-5)

4 – Urban & industrial areas with a moderate salt atmosphere

Drill Tip L (mm)

8.5

Effective Thread L (mm)

87

Finish

Exterior (Silver Organic)

Fixed Washer Dia. mm

11

FW Ø (mm)

11

Head H (mm)

5.3

Head Type

Hex

Length mm

100

Material

Bi-Metal/A2-304 Stainless Steel/Carbon Steel

MDT (mm)

5

Pack Qty

100

Pack Type

Box

Point Type

Self-Drilling No.3

Size

5.5mm x 100mm

Socket Size mm

8

Substrates

Steel

Thread Coverage

Fully Threaded

Thread Dia. mm

5.5

Thread Type

60° Self-Tapping

Delivery & Returns

All orders to the UK mainland are free of charge over £85 inc VAT. Orders under £85 inc VAT are charged at £9.95. We aim to dispatch orders placed before 3pm Monday to Friday on the same working day, with delivery to most UK mainland addresses typically taking 1–2 working days.

Some products have a longer delivery lead time, such as 3–4 working days. Where this applies, the expected delivery timeframe will be clearly stated on the individual product page. Orders may be dispatched from more than one location and items within the same order may therefore arrive separately. Please see our full Delivery & Returns Policy for further information.

Returns: Please inspect your goods as soon as reasonably possible after delivery and contact us promptly if anything is damaged, incorrect or appears to be faulty. Prompt notification helps us investigate delivery issues with our couriers and suppliers, but does not affect your statutory rights.

For consumer change-of-mind returns, you are responsible for arranging and paying the cost of returning the goods to us. Some products, including ladders, long-length building materials and other oversized goods, cannot normally be returned using standard postal services. For large, heavy or oversized goods that cannot normally be returned by post, we estimate that return carriage may cost up to £75 (including VAT) within the UK mainland. The actual cost will depend on the size and weight of the goods, the collection location and the carrier or return service used.

Please contact us before returning any goods so that we can provide the correct return address and any applicable return instructions or authorisation requirements. Different provisions apply to business customers and to goods that are faulty, damaged, incorrect or misdescribed. Please see our full Delivery & Returns Policy for full details.

Should you require any assistance, please email us at sales@fastfixingsonline.com, call us on 07920 120644, or complete our contact form. We are open Monday to Friday, 9am–5pm.