Works on all steel fasterners-Grade 5, Grade 8, even case hardened. Special Flux solidifies to protect threads during the build-up operation.

Procedure

Choose correct size of electrode to suit cavity diameter. Set amperage according to: Up to 3/8"(9.5mm) use 3/32" (2.4mm) at 50-75 amps; From 3/8" to 1/2"(9.5mm-13mm) use 1/8"(3.2mm) at 80-120 amps; For diameters over 1/2"(13mm) use 5/32"(4.0mm)at 100-140 amps. Strike arc precisely in center of boken stud and begin build-up.Take your time.Continue re-striking "dead center" on build-up. Building-up deposit off-center will cause stud to be welded to sides of cavity. Do not overheat. Allow build-up to cool. Before building deposit above top of cavity,allow weld deposit to cool. This precaution will help avoid welding deposit to top edges of cavity. Carefully chip away only top center of slag. Build-up enough deposit above top edge of cavity to be able to weld a nut and washer to deposit without welding them to part edges. Allow deposit to cool slightly. Weld a washer and nut of same or smaller size to built-up column of metal to center of deposit. Do not weld nut and washer to part edges. Allow assembly to cool before using a wrench, or appropriate tool to unscrew broken part. If there are any problems removing broken part, weld deposit build-up was probably improperly centered in cavity. Slag is easily chased from cavity by using a tap.