National Hardware N221-317 Eye Bolt, 1/2-13 Thread, 3-1/2 in L Thread, 1 in ID Dia Eye, 3.95 in L Shank, Steel, Zinc [SKU: ORG6790109]

Standard machine screw threads, Course machine screw thread on the extra large sizes (larger than 1/2 x 12), When subjected to 312 hr of salt fog spray testing, zinc-plated hardware showed severe corrosion while hardware with WeatherGuard protection withstood these harsh conditions with very little deterioration. [QTY/UOM: 1EA / 1EA]