B-Line SB2102AYZ Eaton series runway splice, Used to connect runway stringers into straight run, Used with (SB165A) and (SB166A) series and hardware, Runway horizontal reducing butt splice kit, ASTM A570 structural steel, Yellow zinc

It joins two cable runway stringers end to end in a straight run. It's a horizontal reducing butt splice kit, so it's the piece you use where one stringer meets the next in line rather than at a corner or an elevation change. The kit is meant to be used with the SB165A and SB166A series runway and hardware.

Series specific. The SB2102AYZ is built to splice B-Line SB165A and SB166A series runway stringers and their hardware. If your runway is a different series or another manufacturer's product, the stringer profile and bolt pattern won't be a stated match, and you should source the splice kit for that runway instead.

A reducing butt splice is for a straight run where the two stringers meeting end to end aren't the same size. Instead of a plain flat splice joining identical stringers, the reducing kit carries the transition so the run continues in a straight line through the change. The SB2102AYZ is the horizontal reducing version, for level runs rather than a step up or down in elevation.

Yes, the SB2102AYZ carries a UL Listing. That matters on telecom and data center runway installs where the inspector or the spec calls for listed support components throughout the run, not just at the stringers.

ASTM A570 structural steel with a yellow zinc finish. A570 is a hot-rolled carbon steel sheet and strip grade, so the splice carries load rather than just aligning the joint. Yellow zinc is a plated finish suited to dry interior spaces, equipment rooms, telecom closets and data centers. For wet or corrosive exterior environments, specify a hot-dip galvanized or stainless runway component instead.

Every butt joint in a straight run needs its own splice kit. The SB2102AYZ is sold as a single model, so count your stringer-to-stringer joints along the run and order one per joint. It's designed to work with SB165A and SB166A series runway hardware, so plan the hardware takeoff from that same series.

Order Eaton B-Line SB2102AYZ. That single MPN covers the yellow zinc horizontal reducing butt splice kit; there are no finish or size options to specify beneath it.

The splice measures 5 x 2.1875 x 1.5 inches and weighs 1.1 lb. Useful when you're figuring how much clearance you need at the joint and how many kits you can carry up a ladder in one trip on a long runway pull.