LSX LS1 LS2 LS3 LS6 LSX LQ4 LQ9 Balancer Pulley Crank Install Tool
Threaded Rod, Nut and Washer are All Grade 8 (Metric 10.9). Medium Carbon Alloy Steel Quenched and Tempered.
Not Stainless Steel.
Stainless Steel is Not The Best Choice For High Strength Fasteners. See Below.
"It is a common misconception that stainless steel is stronger than regular steel.
In fact, due to their low carbon content, many stainless steel alloys
cannot be hardened through heat treatment. Therefore, when compared to
regular steel, the stainless alloys used in bolts are slightly stronger
than an un-hardened (grade 2) steel but significantly weaker than
hardened steel fasteners. Unless great care is taken, stainless
fasteners are susceptible to seizing up during installation, a phenomenon known as galling."
Bolt Grade Markings and Strength Chart
