Home / Bolts & Studs / ARP 5/16-18 SS 12pt nut kit “ARP Porsche 911 AC 3.6L & 3.8L crankcase thru bolt kit” has been added to your cart. View cart ARP 5/16-18 SS 12pt nut kit€ 9,67 ARP 5/16-18 SS 12pt nut kit quantity Add to cart SKU: ARP-401-8323 Categories: Bolts & Studs, Motor Brand: ARP Related products Bolts & StudsEngine & Performance Dodge 5.9L 24V Cummins ’98-’02 custom age hsk Bolts & StudsEngine & Performance ARP cabinet with SS 12pt accessory bolts Bolts & StudsEngine & Performance ARP Chrysler 5.7L/6.1/6.4L Hemi HSK GEN III CA625+ Bolts & StudsEngine & Performance ARP cabinet with SS hex accessory bolts