ARP 7/16inch-20 9/16inch Socket 12pt Nut Kit .
ARP HEADER BOLT KIT 400-1206 UNIVERSAL DRILLED USES 3/8 SOCKET QTY 12
ARP 134-2101 Small/Big Block Chevy 12 Point Intake Bolt Kit 1" UHL (3/8 Socket)
ARP 300-8334 Chrome Moly 9/16" Socket 12PT 1/2"-20 RH Thread Nut Kit Set Of 10
ARP M10 x 1.25 M16 Socket 12pt Nut Kit 10 Pack - 301-8352
ARP 12mm x 1.25 16mm Socket 12pt Nut Kit (10 pack) - 301-8400
ARP 134-2101 SBC Chevy 12pt intake manifold bolt kit (3/8 socket)
