This 1-piece galvanized boat trailer wheel hub kit is a durable accessory that can help you protect your trailer's wheels from harsh conditions. Complete with pregreased bearings, seals, dust caps, cotter pin and lug nuts, this product is easy to install with common tools. This wheel hub's lug nuts are on a 4.5" bolt pattern. Seachoice is committed to delivering quality marine accessories and OEM replacement parts to satisfy fishing, boating and watersports enthusiasts worldwide. Seachoice is run for and by boaters offering a wide-ranging product line while remaining affordable.