Hexagonal head screw with drill bit and EPDM washer DIN 7504 KO

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Correspondence table DIN 7504 KO

Overview

Specifications

Fastening groupStainless steel fasteners
StandardDIN 7504 KO
MaterialStainless steel A2
Diameter, mm4.8, 5.5, 6.3
Length, mm16, 19, 20, 22, 25, 28, 30, 32, 35, 38, 45, 50, 58, 60, 63, 65, 70, 75
Base materialMetal, Wood
HeadHexagonal
Packaging, pcs. 50, 100, 200, 500, 1500, 1800, 2500, 3000, 4000
Type of carvingFull
SlotExternal hexagon (SW)
Thread typeMetric
AnalogISO 15480
Popular name
CoatingZinc, RAL
ColorRAL3011 RAL6002 RAL7004 RAL1003 RAL8004 RAL9003 RAL9006 RAL1014 RAL3003 RAL5002 RAL8019 RAL9010 RAL1015 RAL3005 RAL3009 RAL5005 RAL5010 RAL6005 RAL7024 RAL8017

 DIN 7504 K is a fastener consisting of a hexagonal head with a flange, a threaded rod, a drill bit and an EPDM washer. The product is most often used for fastening sheet metal elements to soft materials. With the total thickness of the materials to be fastened up to 4 mm, the design of the hardware allows for use without a pre-prepared hole.

Fastening group DIN 7504KO


     The DIN 7504 KO self-tapping screw belongs to the stainless steel fastening group.

Materials of manufacture of DIN 7504KO


     DIN 7504KO is available in the following materials:

  • Steel, which can optionally be coated with zinc
  • Stainless steel (A2, A4) does not need to be coated


Areas of application of DIN 7504KO


     Hexagonal head drill screw DIN 7504 K - this screw is used for connecting several structural elements to metal profiles and sheets. They do not require preliminary drilling of holes. Stainless hexagonal head screws for metal with an L-shaped head have a straight slot. If this fastener is equipped with a rubber gasket, it can be used as a roofing fastener. Since the gasket will protect the connection from the effects of adverse weather conditions, it will ensure tightness, reliability and durability of the structure. It is used in various industrial sectors, in construction, repair and installation processes, in mechanical engineering, during the assembly of metal structures, various installations, equipment, roofing, etc.

     In addition, the scope of application directly depends on the material of manufacture and coating of the product:

  • Galvanized steel is a good protection against corrosion if the fastener is to be used in an aggressive environment.
  • Stainless steel allows the fasteners to be used at significant temperature drops and in aggressive and humid environments.

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