Fabrication AssembliesBolts, nuts, washers and studs etc. used to connect fabricated assemblies shall be of the appropriate material and grade of strength for the application and shall be of sufficient length that when fitted with a nut and washer etc. and tightened down the threaded portion shall fill the nut.The Bolt should be showing at least 3mm or 0 1/8 in of thread when fixed to the nut and washer.Plain washers shall be fitted on all bolts and studs etc. behind the nuts, in keeping with good engineering practice, except where the Company may specify the use of spring locking or other types of washers.Where stainless steel bolt sets etc. are used, anti-seize compound shall be used to prevent ‘binding’ between the threads of the bolt and nut.