Feature: * brand new and high quality. *Self-Tapping Hex Bolts with Washer and U-Nut Speed Fastener clips set. *Used to fasten the undertray, be sure to check the compatibility chart to confirm if you vehicle is compatible with the part before purchase. *Special Features:U Nut Hex Screw Speed Fastener Undertray Sheet Metal Clip Fixing. Specification: Screw: *Hex Bolt Head:8mm *Length:14mm (From under washer) *Washer Diameter:17mm PLEASE BE AWARE THERE IS MORE THAN TYPE OF BOLT, PLEASE CHECK THE PHOTO AND DIMENSIONS TO MAKE SURE THESE ARE THE CORRECT ONES. Speed Fastener: *Length:16mm *Width:11mm Fitment: For BMW For1er - E81 - E82 - E87 - E88 - F20 For3er - E21- E30 - E36 - E46 - E90 - E91 -E92 - E93 For5er - E34 - E39 - E60 - E61 - F07 - F10 - F11 - F18 For6er - E63 - E64 - F12 - F13 For7er - E32 - E38 - E65 - E66 - F01 - F02 - F04 For8er - E31 ForX1 - E84 ForX3 - E83 - F25 For E53 -E70 ForX6 - E71 - E72 ForZ1 - Roadster ForZ3 - E36 - E85 - E86 - E89 ForR50 - R52 - R53 - R55 - R56 - R57 - R60 Package Contents: 10*screw 10*fastener Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightne of your monitor and light brightne. 2. Please allow slight manual measurement deviation for the data.