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  2. ONS Stainless steel self-drilling screws 5,5x40mm with washer S14 - cardboard box - 100 pcs.

Steel

ONS-55040S14

5906675331331

Koelner

The special drill bit shape designed to provide quick and trouble-free installation in metal constructions made from hot rolled sections

Define product parameters:

Diameter
Washer
Length
Packaging and quantity
Weight and bulk packaging
  • Unit pack

    100.00 pcs.0.80 kg

  • Bulk pack

    1600.00 pcs.13.16 kg

  • Pallet

    51200.00 pcs.421.28 kg

Related products

Features

The special drill bit shape designed to provide quick and trouble-free installation in metal constructions made from hot rolled sections

  • The stainless steel self-drilling screw manufactured in BIMETAL technology combines high mechanical strength with excellent corrosion resistance.
  • The case-hardened thread ensures high cutting performance and secure anchorage in the substrate, while maintaining a ductile core. This increases resistance to dynamic loads and reduces the risk of screw fracture.
  • The optimised thread geometry and pitch ensure fast penetration into the steel substrate and provide high load-bearing capacity of the joint.
  • The thread extended up to the head prevents screw overdriving and ensures strong clamping of the connected elements. It allows installation without a sealing washer in applications where watertightness is not required.
  • The self-vulcanizing EPDM sealing washer is resistant to UV radiation, ageing, and temperature fluctuations. It guarantees long-term watertightness and protects the joint against water ingress.
  • The specially engineered drill point geometry ensures fast and trouble-free drilling, enabling efficient fastening of load-bearing and cladding sheets to roof and façade structures without the need for pre-drilling.
  • The screw is intended for outdoor applications and maintains its performance in environments with elevated humidity and significant temperature variations.
  • Screws available with a coloured polyester coating (RAL) provide additional corrosion protection and ensure aesthetic matching with roofing or façade cladding. UV stabilisers guarantee long-term colour durability and resistance to fading throughout the service life.

Metal sheet & profiles

Metal sheet & profiles

Approved surfaces

Pitched roofs

Drilling and screwing

Ventilated facades

Diameter
Washer
Length
Packaging and quantity
Index
EAN
Catalog price for pack. net

Installation manual

Installation step by step

1

Using the magnetic attachment, tighten the screw with washer using a screwdriver with adjustable torque.

2

Screw properly tightened.

Installation data

Technical library

(5)

Technical assessments(2)

ETA-24/0237 (2024-12-20) - Fastening screws for metal members and sheeting

UKTA-22/6336

Declarations(2)

ONS - Fastening screws for metal members

UKTA-DoP-22/6336-ONS

Certificates(1)

1488-CPR-0752/Z (ETA-24/0237 - Self-drilling screws)

Catalogues and product cards

(2)

Product cards(1)

Product cart

Catalogues(1)

Catalogue