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  2. OC Self-drilling screws 5.5x120 mm with washer T14 RAL 7035 - cardboard box - 100 pcs.

OC Self-drilling screws 5.5x120 mm with washer T14 RAL 7035 - cardboard box - 100 pcs.

Steel

OC-55120T7035

2015512070357

Koelner

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

Define product parameters:

Diameter
Length
Color RAL
Washer
Packaging and quantity

We will prepare this product for you after you add it to your cart and place your order. The estimated lead time is 21 days

Features

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

  • 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.
  • 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 optimised drill point geometry enables efficient drilling in steel, reducing installation time and increasing assembly efficiency
  • 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.

Substrates

Structural steel

Structural steel

Metal sheet & profiles

Metal sheet & profiles

Approved surfaces

Applications

Profiled and cover sheets

Full list of variations

Substitutes

OC Self-drilling screws 5.5x120 mm without washer - cardboard box - 100 pcs.

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

OC Self-drilling screws 5.5x120 mm with washer T14 - cardboard box - 100 pcs.

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

OC Self-drilling screws 5.5x120 mm without washer - cardboard box - 100 pcs.

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

OC Self-drilling screws 5.5x120 mm with washer T14 - cardboard box - 100 pcs.

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

Services

Installation guide

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

Approvals and publications

Technical library

(8)

Technical assessments(3)

ETA-24/0237 (2026-09-02) - Fastening screws for metal members and sheeting

Fastening screws for metal members and sheeting

Download

KOT-0159/2018

KOT-0159_2018_edition 2

Download

UKTA-22/6370

UKTA-22/6370

Download
Declarations(3)

DoP-24/0237 OC (ETA-24/0237 - Self-drilling screws)

OC - Fastening screws for metal members

Download

KDWU-2018/0159-2

KDWU

Download

UKTA-DoP-22/6370-OC

Download
Certificates(2)

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

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

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020_UWB_0850_Z

UWB

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Catalogues and product cards

(2)

Product cards(1)

Product card

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Catalogues(1)

Catalogue

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