Structural bolting for the construction market

In the construction market, and especially in the steel and wood construction, a lot has changed over the past years. Technical and technological innovations have been introduced. They have influenced companies in several different ways, from development and competitiveness up to safety procedures. Just like you, MARO Fasteners also has to deal with this. Especially the harmonised standards for construction products at European level by the introduction of Eurocodes affects the Fastener Market.

Up to date EN-15048 / EN-14399

New requirements like EN-1993 and EN-1090 have strongly changed the entire range of products. As a specialist in the construction market, we are up-to-date: all fasteners for preloaded and non-preloaded connections comply with all current requirements and standards.


  • Structural Bolting Assemblies EN-15048
  • High Strength Hexagon Bolts EN-14399 HV, HR(C)
  • Bolting for Steel Structures DIN 7990/ DIN555
  • Hexagon Bolts ISO 4014 / DIN 931
  • Hexagon set screws ISO 4017 / DIN 933
  • Hexagon socket head cap screws                         ISO 4762 / DIN 912
  • Hexagon socket countersunk head screws       ISO 10642 / DIN 7991
  • Hexagon Nuts ISO 4032 / DIN 934
  • Washers ISO 7089 / DIN 125A
  • Threaded Rods DIN 976
  • Trapezoidal rods
  • U- Bolts
  • Different types of Anchors
  • Screws
  • Fasteners according to customer drawing


  • Special grades of Stainless Steel
  • Standard Stainless Steel: A2, A4 (class 50, 70, 80, 100)
  • Steel: 4.6, 5.6, 6.8, 8.8, 10.9, 12.9


  • Hot Dipped Galvanized
  • Electro Zinc Alloy Platings
  • Zinc-Flake coatings
  • Fluoropolymer coatings (PTFE)


EN-10204 type 2.1, 2.2, 3.1, 3.2, DOC, CE- marking, DOP.

Inspection bodies

DNV, LIoyd’s Register of Shipping, ABS, TÜV, Germanischer LIoyd’s, Bureau Veritas, etc.


According to EN ISO 898, EN ISO 3506.