Content with thread length calculator

12 January 2016
The minimum thread length is calculated strictly according to EN 14399-3 for high-strength structural bolting assemblies for preloading - System HR and EN 14399-7 for high-strength structural countersunk bolting assemblies for preloading - System HR . In calculation, you need to consider standard reference thread length (b), minimum length of the shank - un-threaded part of the bolt, and distance from the head of the bolt till first full thread.
Read more about What is the minimum thread length on high-strength structural bolting assemblies for preloading?

07 December 2015
Maximum bolt length = 300 mm The values produced on this calculator are for information purpose only. They are calculated using formulas stated in relevant standard and are provided in good faith and for your guidance only. Andrews Fasteners Limited can not accept any liability for actions taken by third parties based on this information. Bolt diameter M Length X Calculate Reset form Thread b (ref.): Minimum thread (full thread): Maximum thread inc.
Read more about Thread Length Calculator for Countersunk High-Strength Structural Bolts to BS EN 14399-7 (HR CSK)

06 December 2015
Maximum bolt length = 300 mm The values produced on this calculator are for information purposes only. They are calculated using formulas stated in the relevant standards and are provided in good faith and for guidance only. Andrews Fasteners Limited can not accept any liability for actions taken by third parties based on this informations. Bolt diameter M Length X Calculate Reset form Thread b (ref.): Minimum thread (full thread): Maximum thread inc.
Read more about Thread Length Calculator for Hexagon High-Strength Structural Bolts to BS EN 14399-3 (HR)

21 August 2015
Please find below documents as a part of our Technical Support section. If case of any further questions, please visit our Frequently Asked Questions (FAQ) section or contact with Andrews Fasteners Quality Department . BS EN 15048 Non-preloaded structural bolting assemblies (SB) Torque values prepared by W. Christie Guidance On The Tightening of Non-preloaded Fasteners Guide to Design Criteria for Bolted and Riveted Joints, Second Edition BS EN 14399 High-strength structural bolting assemblies for preloading (HR) The different appearance of lubricated nuts on EN 14399 assemblies Configurator for BS EN 14399 High-strength structural bolting assemblies for preloading (HR) Torque values for High-Strength Structural Bolting Assemblies for Preloading with specified k-Class Bolt Length Calculator for HR Bolts and HR Countersunk Bolts (EN 14399-3/7) Thread Length Calculator for Countersunk High-Strength Structural Bolts to BS EN 14399-7 (HR CSK) Thread Length Calculator for Hexagon High-Strength Structural Bolts to BS EN 14399-3 (HR) Comparison of Tightening Methods of HSFG Bolts Detailed comparison of BS 4395 and BS EN 14399-3 & 6 Summary comparison of BS 4395 and BS EN 14399-3 & 6 Grip, Bolt Lengths and Hole Dimensions Guidance notes on the use of Preload Bolt Assemblies BS EN 14399 (HSFG) comparison as an alternative to ASTM HSFG See also: Preloaded assemblies k-Class K1 and K2 manufactured in the UK (from News ) BS EN 14399-9 Direct Tension Indicators Washers Instruction Manual for installing Preloaded (HSFG) bolting with TurnaSure Direct Tension Indicators Washers EN 14399-9 New Generation Direct Tension Indicators Squirter Type DTI performance results Preload Measurement and Comparison of Structural Bolts sets installed in Steel Connections with and without DTI Tests for stress relaxation over time 1963 to 1971 with CLI Fatigue tests on CLI CLI Washers-load gap relationship on unloading and loading DTI Case History - DTIs Save More than $150,000 Study discussing influence of load-indicating washers on bolt relaxation in joints subject to high prying forces Study on full flattening of Direct Tension Indicators in Shear Connections Study on curved protrusion DTIs design assembled without needing nut face or bolt face washers Impact of Variable Lubricity on Type 325 Structural DTIs Test Report for Accelerated Aging of Weathering Steel Joint using TurnaSure Weathering Steel Transverse Vibration Loosening Characteristics of High Strength Fastened Joints using DTIs Coating Trivalent passivation systems (Fasteners+Fixings Magaizne) The HDG (Hot Dip Galvanising) Coating (Source: galvanizeit.
Read more about Technical Support