NRS Frame U-Bolt

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Stainless steel U-bolts for NRS LoPro Frame Fittings and other frame accessories. Curve of the U-bolt is flattened, or "coined", to reduce impact on boat material. It's shaped to f it our 1 5/8" diameter frame pipe. The 2 1/8" deep Standard size U-bolt is used with LoPro Frame Fittings. We use the longer 2 1/2" deep Oversized U-bolt with our Raft and Cataraft Anchor Systems, Lower Cat Rail Spreader Bars and Cataraft Frame Aluminum Floors. Folks building their own custom frames may also find use for these U-bolts. Tips of threaded shanks are rounded, eliminating sharp edges. Each U-bolt comes with two 1/2" zinc-coated nylon locknuts and two zinc-coated flat washers. Bolt thread is 5/16"-18. Specifications Weight: Single bolt with nuts & washers is 0.1 lbs. Components: 1 - U-bolt with nuts and washers Notes: Bolt thread is 5/16"-18 Rounded bolt tips Sizing Bolt Sizes Interior Length Interior Width Standard 2 1/8" 1 5/8" Oversized 2 1/2" 1 5/8" Show more