B-Line Eaton series clevis hanger, 1.25" height, 7.724" length, 6.063" width, Steel, Slide rite clevis hanger, Type 1, Stainless steel type 304, 4" pi

Finish is type 304 stainless steel, which is what you'd specify for exterior runs, mechanical rooms, wash-down areas and coastal work where plain electro-galvanized hangers rust out. Base material is steel.

Yes. The Slide Rite design uses an aligned bolt hole for overhead install, so the top and bottom straps line up as you drive the bolt and you aren't fishing for alignment on a ladder with pipe in your other hand. At 2 lb it's light enough to hold up one-handed while you start the fastener.

No. What ships is the clevis hanger itself, the top strap, bottom strap and the bolt and nut that join them. The 5/8-11 drop rod, hex nuts, and the concrete or beam anchor at the structure are all ordered separately.

A clevis like the B3100 is the standard choice for horizontal pipe hung from a single drop rod: the pipe sits in the bottom strap and the top strap closes over it, so it carries the load in suspension and lets you adjust height at the rod. Riser clamps are for vertical pipe bearing on floor penetrations, and a strut clamp is what you want when you're attaching to channel rather than rod. For a 4 inch horizontal line off 5/8-11 rod, the clevis is the right part.

Match on the manufacturer part number B3100-4SS4. The B3100 is the Slide Rite clevis series, the 4 is the 4 inch pipe size, and the SS4 denotes the 304 stainless version. If the existing hangers on your building are plain or galvanized B3100s, this one is dimensionally the same family but a different finish.