JCM Quality Fitting Equipped With 18-8 Stainless Steel Bolts and Nuts
When not properly handled it is the nature of stainless steel fasteners to gall and freeze (seize up). This is due to
the inherent properties of the stainless material. Galling and freezing is often triggered by the presence of metal
chips, burrs and grains of sand on the threads of the bolts and nuts. Extra care has been taken by JCM prior to
assembly and packing of this fitting to assure a trouble-free installation.
1.
The nuts and bolts are made from material of different hardness so that they have different strengths.
2.
Standard 5/8” and 3/4” nuts are coated with a special blue or green (antiseize) coating. Additional lubricant
may be needed. Uncoated stainless steel hardware is provided without lubrication to prevent a build up of dirt,
sand or grit during shipment.
A Molybdenum-Base lubricant is recommended.
3.
Each nut is assembled by hand to be sure that it went on the bolt freely.
4.
The bolts and nuts are handled carefully to avoid damage to the threads.
5.
The bolts and nuts are made to exacting specifications to assure that the correct material is used and that the
thread form is correct.
Stainless hardware is especially susceptible to galling. JCM supplies specially coated nuts to eliminate the galling
caused by over torquing, but
the bolt threads must be kept clean, free from nicks and not pitched or thrown
into the tool bucket during the installation process.
Use of the J
CM 901 Master Wrench or JCM 905 Torque
Wrench with Deep Socket is highly recommended.
Use of pneumatic wrench for installation could cause
hardware to seize and is not recommended.
Stainless Steel Fastener Management
Model
143 Bell Joint Leak Clamp
4” - 12” Ductile Iron, Cast Iron, C-900 PVC
