DP5421BC, Zinc, Single, Round, Rail Splice Bracket, Designed To Be Used With #5400 Round, Rail To Join & Hold 2 Lengths Of Rail Together, Offset Nail Holes For Quick Placement, Compatible With 5438 & 5439 Snap On Flashing Brackets, Embossed Steel Is For Added Strength, Splice Screws Are Inserted In Holes At The End Of Rail, 1 Splice Bracket Should Be Installed On Every Length Of Rail To Lock It In Place, Includes Lag Bolt & Spice Screws.