Metallics JTS5312 Anchors 5/8 X 3-1/2 Wedge Ancr St-zn (Jar 25)

Wedge anchors like the JTS5312 are designed for solid, poured concrete. They expand by wedging against the hole wall, which hollow block and brick cannot reliably resist, and the shell can blow out. For hollow masonry use a sleeve anchor or a toggle rated for block; for the mortar joint, a different anchor type entirely.

The JTS5312 is a carbon steel anchor with a zinc plated finish. That is a dry, indoor or protected finish, fine for interior slabs, equipment pads under cover, and strut or conduit support inside a building. For wet, coastal, or chemically exposed locations, specify a stainless wedge anchor instead, since zinc plating will corrode in standing water.

25 anchors per jar. The pack is a jar rather than a bulk box, which is the usual format an electrician or contractor keeps on the truck for a single run of strut, transformer pads, or panel mounting. Nuts and washers come assembled on wedge anchors of this type, so no separate hardware is needed.

A wedge anchor such as the JTS5312 is a solid-concrete-only anchor: you drill, drive it through the fixture hole, and torque the nut, which pulls a cone into an expansion clip and grips the hole wall. It is the higher-capacity choice for floor-mounted equipment, strut, and machine bases. A sleeve anchor expands along its whole length and is the one to reach for in block, brick, or lower-strength base material, with lower pullout values. Wedge anchors are also permanent, since the body stays in the hole.

Order Metallics part number JTS5312. That designation covers the 5/8 inch diameter by 3-1/2 inch zinc plated steel wedge anchor in the 25 piece jar, and it is the only configuration under that number, so there are no length or finish suffixes to add.

Yes, 5/8 inch wedge anchors are a common choice for overhead strut and trapeze hangers in poured concrete decks. The 3-1/2 inch length allows meaningful embedment after the strut thickness is taken up. Keep in mind the zinc plated steel finish suits dry interior locations, and overhead applications in many jurisdictions require an anchor specifically evaluated for that use, so check what your inspector will accept.