These are ARP 2000 studs.
ARP - ARP Head Stud Kit - 204-4302
ARP HEAD STUD KIT 141-4202 DODGE 2.0L DOHC NEON BLOCK 4667642 HEAD 4667086
ARP HEAD BOLT KIT 154-3705 SB FORD 302 W/ 351 WINDSOR HEADS HP 12 POINT HEAD
ARP Head Stud 02 318i/320i Individual Head Stud for Cummins 24V - AU6.625-2LB
ARP Head Stud Kit & Mahle Head Gasket 1.28mm For 03-07 Dodge Cummins 5.9L
ARP Head Stud&Mahle Cylinder Head Gasket For 07.5-12 Dodge Cummins 6.7L 24V