Product Description Polished to a mirror finish Custom 450 Stainless Steel 12-Point bolts have 180,000 psi tensile, which is 20% stronger than Grade 8 UNJ3A rolled threads Made in the USA Diamond Engineering 12-Point Rear Caliper Mount Kit at RevZilla Browse all RevZilla deals $28.99 Out of Stock Price checked 11 days ago Buy Now at RevZilla Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand Diamond Engineering Size OS Condition New MPN PB504S Diamond Engineering