[Nvbowtie]

Not sure if this is exactly what your after, but have lookie anyway

ARP $$$$ : http://www.arp-bolts.com/pages/products/products.html

Regular Hex: http://www.performancechrome.com/en-us/dept_347.html

Bowtie embossed:http://www.performancechrome.com/en-us/dept_348.html