United States

Kronos Aluminum 7075-T6 Double Chainring Screws - Black Anodized Application: Attaches the outer two chainrings together on both mountain bikes and road bikes and works with almost every crankset manufactured in the last 25 years. This set contains 5 bolts and 5 nuts in black anodizing. Kronos Engineering's chainring screws first hit the market in 1988. They were the nicest looking and best quality of all the aluminum bolt kits that followed. Using top quality and strength 7075-T6 Aluminum alloy, these bolts were precision machined on Swiss screw machines, the same machines that are used for Rolex, Tag-Heuer, IWC, and many other Swiss watches, Kronos screws are the highest quality fasteners money can buy. Designed and engineered by an aerospace engineer and bicycle racer who knew where and how to save precious weight on the bicycle. They will never rust and will last a lifetime. Check proper installation torque specs. on the back side of the packaging. Made in U.S.A. Weight: 9.8 grams for the set Original MGF Retail Price: $19.95 set California residents will be charged 9.25% state sales tax. Shipping: This item will be shipped using USPS first class mail.