When we created TPi regular bolt for the luxury and European market, we decided to go far beyond industry standards and bring a product to the market that is unmatched in quality. TPi product is therefore "Exceed Customer Expectations"Download PDF
ASTM 4140 or SCM 440, Chrome Vanadium or Chrome Molybdenum
Zinc, Triple Nickel/ Chrome
Zinc 72 hours Salt Spray Test, Triple Nickel/ Chrome 96 hours Salt Spray Test
Cone Seat, Ball Seat R12 (also available in R13 or R14)
Other Finish Available
Thread size is stamped on every lug bolt for easy and quick identification for customers
TPi Lug Bolt is manufactured to meet or exceed the O.E.M. standard for safety and durability.