Check the listing for details. 6 pc Soft Top Window Frame/Surround Knobs for 2007-2018 Jeep Wrangler JK 4-Door. Color: Black, Condition: New. Listed at 15.59 USD. Upgrade your 2007-2018 Jeep Wrangler JK 4-Door with this 6-piece Soft Top Window Frame/Surround Knob Kit from Jeep Bay. These knobs are made of durable nylon/stainless steel material and come with mounting hardware included for easy installation. The screw-on attachment type ensures a secure fit, and the black color complements any Jeep's exterior. The package includes 6 knobs, 4 Long knobs and 2 Short Knobs for your 4-Door JK. Black Decromet Plated Bolts and Screws VS Zinc and Black Oxide Plated Nuts and Screws Dacromet is 7-10 times more rust resistant than electro-galvanized and 4-5 times more rust resistant than hot-dipped zinc. Screws with Dacromet finish are salt spray tested for 1200 hours or more Than any Other Plating. Dacromet screws have high strength, such as grade 12.9 external Torx screws, Hex Head Screws and grade 8.8 internal Torx and Hex Head screws. Dacromet can withstand temperatures of over 300 degrees Celsius.