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Certifix CFSSCSB4 BiMetal A4, 4.8 x 24mm Countersunk Standing Seam screw

SKU: 14765
Pack Size: 500
£230.50

Usually shipped in 1-2 business days

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The Certifix CFSSCSB4 BiMetal A4, 4.8 x 24mm Countersunk with SIT®20 (torx 20) 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.

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

Doubles the retention force of a nailed cleat.
Screw solution saves time and money, as there is no need to rework poorly installed nails.
Positions can be easily corrected without damaging the cleat.
More flexibility on the roof thanks to the use of lightweight cordless screwdrivers as hand tools instead of heavy pneumatic or gas nailers.
Flat head for smooth sliding of the standing seam sheets.
Drill tip centres the screw and reduces the splitting effect in the wood.
Screw loosening protection thanks to locking serration = Screws do not work loose.

No over-tightening due to locking serration.

Specifications
  • Brand
    Certifix
  • Diameter (mm)
    4.80
  • Driver Type
    SIT® 20
  • Head Type
    Countersunk head
  • Length (MM)
    24
  • Material
    Bimetal (stainless steel A4/steel)
  • Pack Size
    500
  • Type
    Self drilling screw

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Certifix

Certifix CFSSCSB4 BiMetal A4, 4.8 x 24mm Countersunk Standing Seam screw

£230.50
The Certifix CFSSCSB4 BiMetal A4, 4.8 x 24mm Countersunk with SIT®20 (torx 20) 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

Self drilling screw

Torque Moment (NM)

N/A

Thread Length (MM)

N/A

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

Doubles the retention force of a nailed cleat.
Screw solution saves time and money, as there is no need to rework poorly installed nails.
Positions can be easily corrected without damaging the cleat.
More flexibility on the roof thanks to the use of lightweight cordless screwdrivers as hand tools instead of heavy pneumatic or gas nailers.
Flat head for smooth sliding of the standing seam sheets.
Drill tip centres the screw and reduces the splitting effect in the wood.
Screw loosening protection thanks to locking serration = Screws do not work loose.

No over-tightening due to locking serration.
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