M6 x 1.00 x 16 12pt SS bolts.
ARP Header Bolts 100-1107 3/8 Universal Bolt kit 5/16 HEX HEAD BLACK OXIDE
ARP Header Bolts 100-1209 3/8 Universal Bolt kit BLACK OXIDE 12 POINT HEAD
ARP 613-1750 Universal Bolt 3/8-16" Thread 1.750" Long Stainless Steel 5 pc
ARP 642-1250 Universal Bolt 3/8-16 In Thread 1.250 In Long Chromoly 5 Pack
ARP Main Cap Bolt 134-5001; Hi-Perf Hex Bolt for SBC (Large Journal) 2-bolt
ARP Main Cap Bolt 135-5002; Hi-Perf Hex Head Chromoly for 396-454 BBC 2-bolt
