Collars bolts are utilized for removable pack heat exchangers, to holding the group set up, if by some stroke of good luck the channel should be taken out.
Roughly 25%, with at least four, of the rib studs, will be Collar Bolts, to keep the group set up. All Collar Bolts will have a square expansion past the strings for utilization of a wrench to forestall turning of the fastener when the nuts are fixed or taken out.
|Product Range||Standards||Material||Property Type||Threads||Grade||Mechanical properties|
|4 MM to 16 MM||As per costumers requirement.||High Tensile||4.6 ,5.6 , 5.8 , 8.8 ,10.9 , 12.9||Metric, BSW, BSF, UNC, UNF, and as per costumers requirement.||SAE 10B21, SAE 15B25, SAE 15B41, AISI 4140,4135, BS-EN8D||As per requirement.|
|Mild Steel||SAE1008 / SAE1010 / SAE 1018|
|Stainless Steel||A2-70, A4-70,A2-50, A4-50||SS202, SS304, SS316, SS316L|
|Brass||CUZN 40 / CUZN 37|
|Phosphorus Bronze||CUSN 4, CUSN 5|