chrome bolt screw nut end cover cap for 6mm bolt (5mm allen key) x6pcs | eBay
1/2" x 13mm x .642" Chrome ABS Nut Cover, Bolt Cover P028 – Maggie's Online Chrome Shop
Drag Specialties Black Standard Bolt Cover Kit - 2401-0707 Harley-Davidson Motorcycle - Dennis Kirk
10pcs Waterproof Dome Nylon Hex Nut Bolt Cover Cap Protector Protection Cap M6/M8/M10/M12 by AdvancedShop (M8) - - Amazon.com
Amazon.com: Kuryakyn 2446 Motorcycle Accessory: Kool Kaps Engine Bolt Head Covers/Topper Caps for 5/16" Hex Head Bolt (Uses 1/2" Wrench), Chrome, Pack of 10 : Automotive
Willie G Skull Swingarm Pivot Bolt Cover Kit | Harley-Davidson USA
DIY 13 Bolt DIFF Cover Motobilt | Chaos Fab Shop
Amazon.com: Motorcycle Head Bolt Cover Schrauben Motor Topper Caps 7.5mm-10mm for Twin Cam Dyna Softail Sportster XL Touring Road King Tri Black (Pack of 10) : Automotive