Bumper Mounting Bolts: (Carriage Bolt Style) Used to hold the Bumper (Brackets) to the Frame. 24 Pc Kit does Front & Rear! Also includes the Correct “Conical Toothed” Phosphate Washers & Nuts. (NOT Zinc Hardware store stuff like other vendors) Fits 1970 – 1972 Skylark, GS & GSX (and probably a lot of other years as well) Price for this kit is $35 plus shipping Note: GM used both Carriage and Hex style Bolts to mount there Bumpers. Buick used both as well. We prefer the Hex Style because they’re much easier to install and tighten/untighten due to the Hex Style design unlike the Carriage style that relies on the hole being square and precise that it has to “seat” in to. We’re offering both styles. 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! I now have an OEM Page as well with 100's of parts to be added as time permits! www.Stage1Restoration.com