40PCS Self-Tapping Black Metal Hex Bolts with Washer and U-Nut Speed Fastener Clips Set. 1.high quality aftermarket replacement part. 2.have many applications,suitable for car use. 3.These can be used in various places on vehicles including bumpers, splash shields,mud guards,fender liners,engine shield,transmission shield,under car panels,rocker panels and various trim around the vehicle. Fitment: For BMW 1er - E81 - E82 - E87 - E88 - F20 For BMW 3er - E21- E30 - E36 - E46 - E90 - E91 -E92 - E93 For BMW 5er - E34 - E39 - E60 - E61 - F07 - F10 - F11 - F18 For BMW 6er - E63 - E64 - F12 - F13 For BMW 7er - E32 - E38 - E65 - E66 - F01 - F02 - F04 For BMW 8er - E31 For BMW X1 - E84 For BMW X3 - E83 - F25 For BMW X5 - E53 -E70 For BMW X6 - E71 - E72 For BMW Z1 - Roadster For BMW Z3 - E36 - E85 - E86 - E89 For BMW For MINI For BMW R50 - R52 - R53 - R55 - R56 - R57 - R60 Used to fasten the undertray, be sure to check the compatibility chart to confirm if you vehicle is compatible with the part before purchase DIMENSIONS APPROX: Screw: Hex Bolt Head:8mm Length:14mm (From under washer) Washer Diameter:17mm Speed Fastener: Length:16mm Width:11mm PLEASE BE AWARE THERE IS MORE THAN ONE TYPE OF BOLT, PLEASE CHECK THE PHOTO AND DIMENSIONS TO MAKE SURE THESE ARE THE CORRECT ONES.