Standard Gas Springs Gas springs provide a controlled opening force, making them ideal for lids that need help swinging up. On the menu above Guden offers gas springs in many sizes and forces, with chrome rods and black nitrate rods. Standard Gas Springs - 6mm Chrome Rod x 15mm Tube Our 6mm x 15mm gas springs are stocked in a wide variety of sizes in extended lengths between 7.50 inches to 20.00 inches. Stock pressures range from 20 pounds to 100 pounds. Custom sizes are also available. See our web page for all our stock sizes. Listed below are the gas springs we currently consider stock parts with a chrome plated rod and a black epoxy painted tube. These parts are usually in stock for immediate shipment. See our mounting hardware and end fittings pages for additional information. * Gas springs ending in K are supplied with plastic ball socket ends * Gas spring ending in I with metal socket ends and safety clips * Gas springs listed ending in X are supplied with threaded ends only. Extended length listed would be the dimension from center to center if a K or I end fitting is threaded in place on each end. Any item listed is available in any pressure within a manufacturing range of 15 lbs to 100 lbs of pressure. Please contact us if your requirements are for extended lengths and stroke sizes not listed here.