About Certifix | Contact us on 0161 672 3333 or Email info@certifix.co.uk
1 7

Certifix CFTS4 4.8×24 TX20 BiMetal A4, Countersunk with SIT20 cleat screw

SKU: 14765
Pack Size: 500
£230.50

Usually shipped in 1-2 business days

NEED HELP OR ADVICE? Call 0161 672 3333

FOUND IT CHEAPER ELSEWHERE?

Call us, and we should be able to price match or even beat it.

Learn more about our price match policy

The Certifix CFTS4 4.8×24 TX20 BiMetal A4, Countersunk with SIT20 cleat screw standing seam clip screw is a specialized drilling solution designed for the chipless fixing of standing seam cleats to thin-walled sheet metal substructures under 1 mm. Built from high-quality A4 stainless steel bimetal, these screws are engineered specifically for roofing and façade construction. The unique thin sheet metal tip displaces material downwards rather than cutting it, which prevents sharp metal chips from damaging sensitive, non-breathable membranes. This displacement also creates more thread turns in the material, resulting in exceptionally high pull-out values even in very thin components.

Technical Datasheet

Tech Datasheet:

Applications

Drilling screw for fixing standing seam cleats and eaves comb fillers to wooden substructures.
For fixing standing seam cleats, plastic and aluminium eaves comb fillers, edge parts and metal sheets to the roof and the façade

Features

SIT® drive: Quick drive finding, wobble-free screwing in, maximum power transmission without the risk of overspeeding and processing with standard TX bits possible.
Washer countersunk head: Flat contact surface, high contact pressure and perfect fit.
Locking serration: Inhibits overwinding and inadvertent unscrewing.
Single start thread: high load capacity.
Drill tip: drills aluminium and structural steel.

Time and cost savings thanks to the screwing solution with simultaneous drilling process.
Position can be easily corrected without damaging the cleats and can be dismantled.
Flat head for friction-free sliding of standing seam sheets.
Inhibiting effect against over & reverse rotation due to locking serration.

Specifications
  • Brand
    Certifix
  • Diameter (mm)
    4.80
  • Drilling Capacity
    0.5-3.5mm
  • Driver Type
    SIT® 20
  • Head Height (mm)
    0.80
  • Head Type
    Countersunk head
  • Length (MM)
    24
  • Material
    Bimetal (stainless steel A4/steel)
  • Pack Size
    500
  • Thread Length (MM)
    20
  • Type
    Cleat screw

Reviews (0)

Delivery & Returns

For full delivery details, please see our delivery page

For information on our returns policy, please see our returns page


NEED IN A HURRY?


Call us on 0161 672 3333 to discuss options


LOOKING FOR INTERNATIONAL DELIVERY?

Call us on 0161 672 3333 or email sales@certifix.co.uk to discuss options

Safe & Secure

  • Apple Pay
  • Google Pay
  • Klarna
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

We ensure secure processing of your payment information and do not retain or have any access to your credit card details.

Buy now pay later with Shop Pay

Certifix

Certifix CFTS4 4.8×24 TX20 BiMetal A4, Countersunk with SIT20 cleat screw

£230.50
The Certifix CFTS4 4.8×24 TX20 BiMetal A4, Countersunk with SIT20 cleat screw standing seam clip screw is a specialized drilling solution designed for the chipless fixing of standing seam cleats to thin-walled sheet metal substructures under 1 mm. Built from high-quality A4 stainless steel bimetal, these screws are engineered specifically for roofing and façade construction. The unique thin sheet metal tip displaces material downwards rather than cutting it, which prevents sharp metal chips from damaging sensitive, non-breathable membranes. This displacement also creates more thread turns in the material, resulting in exceptionally high pull-out values even in very thin components.

Clamping Range (MM)

N/A

Diameter (MM)

4.80

Drill Diameter (MM)

N/A

Drill Hole Depth (MM)

N/A

Installation Torque (TINST) (NM)

N/A

Washer Height (MM)

N/A

Washer Diameter (MM)

N/A

Type

Cleat screw

Torque Moment (NM)

N/A

Thread Length (MM)

20

Thread

N/A

Size

N/A

Pack Size

500

Package Contents

N/A

Material

N/A

Length (MM)

24

Min Drill Hole Depth for Through Fixings (MM)

N/A

Max Usable Length HEF Stand/HEF Min

N/A

Max Fixture Thickness (MM)

N/A

Width Across Nut (MM)

N/A

Features

SIT® drive: Quick drive finding, wobble-free screwing in, maximum power transmission without the risk of overspeeding and processing with standard TX bits possible.
Washer countersunk head: Flat contact surface, high contact pressure and perfect fit.
Locking serration: Inhibits overwinding and inadvertent unscrewing.
Single start thread: high load capacity.
Drill tip: drills aluminium and structural steel.

Time and cost savings thanks to the screwing solution with simultaneous drilling process.
Position can be easily corrected without damaging the cleats and can be dismantled.
Flat head for friction-free sliding of standing seam sheets.
Inhibiting effect against over & reverse rotation due to locking serration.
View product