ICI 40M620-B M6 x 20 Security Locking Bolt, 4 Pack (Encrypted Key Driver) Lighting Theft Solution for Aftermarket Vehicle Driving and Off Road Lights Nuts & Bolts Unique Shape Repels & Defeats all Common Tools & Security Bit Tips ICI's Exclusive Encrypted Keyed Drivers are ONLY Available From ICI Made from Stainless Steel and Coated for Outstanding Corrosion Protection