ARP 2000  Pro Series Wave Loc 7/16" BBC Rod Bolts. Part#235-6401.

Still new in packaging except for 1 bolt I took out to look at.

Features
/Exclusive Wave Loc Design/220,000 PSI/ARP2000material/double the fatigue life of 8740/Larger than standard thread root radius increases bolt life another 50% (Thats what the package says)

These have the 6 point nut.

$55.00

Pics Coming
Here is a link where I bought em from.

http://www.jegs.com/webapp/wcs/stores/servlet/product_10001_10002_17768_-1