【FITMENT】It is aftermarket saddle bag hardware (Theft Deterrent Saddlebag Locks) compatible for Harley Davidson Touring Road Glide Electra Glide Street Glide Road King 1988-later 【NEW DESIGN】There are 6 bumps on the back of a screw head to help keep it from slipping. Good made materials and hardware, no molded crooked bolts, the screws will hold your saddlebag tightly and will not loose or backed out 【SECURITY】The Theft Deterrent Bolts can help protect your expensive saddlebags from theft and Fly-Offs. Keep the contents of your existing hard saddlebags safe from the grab-and-go thief 【PACKAGE INCLUDED】4 Black Knobs with Black Screws ,4 - U-Clips. Not including Instruction.NOTE: Please reuse your bailhead flat washers for more stable installatio 【INSTALLATION & DISASSEMBLE】Easy to install, NO drilling and NO tools are required to remove and reattach your saddlebag It is aftermarket parts fit for Harley. Your saddlebags will be more secure and reduce the chance of theft, or the Bailhead quick/twist release system coming loose and your bags go flying down the highway beside you instead of with you!