I have located a small batch of OEM Oil Pan Bolts! These are New Bolts, not used! Buick used a couple different sources for these back in the day. These feature the "M" on the Head which is at least 1 of 3 styles used by Buick. I'm offering these in a pack of 18 which is enough for the Big Block Oil Pans. $27.00 Per Set plus the Shipping Fees. These can ship Priority Mail for $8.45 I accept Pay Pal and all major Credit Cards. Order by phone by calling (715) 874-6037 Shop Hours Monday - Friday 1 pm to 6 pm Central time. Thanks for Looking, Best Fastener Collection in the country for 1970 - 1972 Buick GS, GSX & Skylark! And Made in the USA. Don't like dealing with the Big Name Retailers? Give me a shout. I'll be happy to help and share 30 + years of experience in Racing & Restoring Buick Muscle Cars. Check out my New Website for 100's of Buick GS, GSX & Skylark Restoration Parts! www.Stage1Restoration.com