DIN 7968:2007
Hexagon fit bolts with hexagon nut for steel structures

Standard No.

DIN 7968:2007

Release Date

2007

Published By

German Institute for Standardization

Status

Be replaced

Replace By

DIN 7968 E:2017-01

Latest

DIN 7968:2017-08

Replace

DIN 7968:1999 DIN 7968:2006

Scope

This standard specifies dimensions and technical delivery conditions for M12 to M30 hexagon fit bolts of product grade C for use in structural steel bolting. It also specifies the nuts and washers to be used. Fit bolts complying with this standard are also suitable for use in aluminium structures and in composite construction.

DIN 7968:2007 Referenced Document

• DIN 13-20 ISO general purpose metric screw threads - Part 20: Limits of sizes for coarse pitch threads with the prefered tolerance classes; nominal sizes from 1 mm to 68 mm
• DIN 7989-1 Washers for steel structures - Part 1: Product grade C
• DIN 7989-2 Washers for steel structures - Part 2: Product grade A
• DIN EN 20898-2 
• DIN EN ISO 10684 Fasteners - Hot dip galvanized coatings (ISO 10684:2004 + Cor. 1:2008); German version EN ISO 10684:2004 + AC:2009*， 2011-09-01 Update
• DIN EN ISO 3269 Fasteners - Acceptance inspection (ISO 3269:2019); German version EN ISO 3269:2019*， 2020-01-01 Update
• DIN EN ISO 4032 Fasteners - Hexagon regular nuts (style 1) (ISO 4032:2023); German version EN ISO 4032:2023*， 2023-12-01 Update
• DIN EN ISO 4034 Hexagon regular nuts (style 1) - Product grade C (ISO 4034:2012); German version EN ISO 4034:2012 / Note: To be replaced by DIN EN ISO 4034 (2016-05).*， 2013-04-01 Update
• DIN EN ISO 4753 Fasteners - Ends of parts with external ISO metric thread (ISO 4753:2011); German version EN ISO 4753:2011*， 2012-02-01 Update
• DIN EN ISO 4759-1 Tolerances for fasteners - Part 1: Bolts, screws, studs and nuts; Product grades A, B and C (ISO 4759-1:2000); German version EN ISO 4759-1:2000
• DIN EN ISO 898-1 echanical properties of fasteners made of carbon steel and alloy steel – Part 1: Bolts, screws and studs with specified property classes – Coarse thread and fine pitch thread (ISO 898-1:2013)*， 2013-05-01 Update
• DIN ISO 286-1 ISO system of limits and fits; bases of tolerances, deviations and fits; identical with ISO 286-1:1988
• DIN ISO 8992 Fasteners - General requirements for bolts, screws, studs and nuts (ISO 8992:2005)
• DIN ISO 965-4 ISO general purpose metric screw threads - Tolerances - Part 4: Limits of sizes for hot dip galvanized external threads to mate with internal threads made to tolerance position H or G after galvanizing (ISO/DIS 965-4:2024)*， 2024-04-01 Update
• DIN ISO 965-5 ISO general purpose metric screw threads - Tolerances - Part 5: Limits of sizes for internal threads to mate with hot dip galvanized external threads with maximum size of tolerance position h before galvanizing (ISO/DIS 965-5:2024)*， 2024-04-01 Update

DIN 7968:2007 history

• 2017 DIN 7968:2017-08 Hexagon fit bolts with hexagon nut for steel structures
• 1970 DIN 7968 E:2017-01 Hexagon fit bolts with hexagon nut for steel structures
• 2007 DIN 7968:2007 Hexagon fit bolts with hexagon nut for steel structures
• 1999 DIN 7968:1999 Hexagon fit bolts with hexagon nut, for steel structures
• 1970 DIN 7968:1989 Hexagon fit bolts with hexagon nut for steel structures
• 1970 DIN 7968:1971 Hexagon fit bolts with hexagon nut for steel structures