Metallics J3114 Anchors 5/16 X 1-1/2 Slv Ancr &Nt St-zn (Jar 100)

The Metallics J3114 is a 5/16 x 1-1/2 inch sleeve anchor supplied with its nut. Tightening the nut draws the cone up into the expansion sleeve, which flares against the wall of the hole to grip. Zinc plated steel, and it ships 100 to a jar.

A 5/16 inch sleeve anchor like the J3114 drills with a 5/16 inch carbide bit. Sleeve anchors are sized by the hole diameter, so the bit matches the anchor designation. Drill deeper than the anchor length so dust has somewhere to go, and keep in mind the 1-1/2 inch overall length limits how thick a fixture you can clamp.

Sleeve anchors are the usual choice when you are fastening into mixed masonry, block, brick or concrete, because the expansion sleeve spreads the load over a longer section of hole rather than biting at one point. That is the main reason an electrician reaches for a 5/16 x 1-1/2 sleeve anchor over a wedge anchor, which wants solid concrete.

The J3114 is zinc plated steel, which is a dry-interior and lightly protected finish. For exterior walls, parking structures, pool rooms or anywhere washdown or salt is a factor, specify a stainless sleeve anchor instead rather than relying on the zinc plating.

Each jar holds 100 of the 5/16 x 1-1/2 inch anchors and the nuts come with them. You still need the right carbide bit and a hammer drill; those are not part of the pack.

Yes for light conduit and strap work, which is what this size is typically bought for on electrical jobs. Just watch the math on the 1-1/2 inch length: the thickness of the strut or strap plus the washer and nut all come out of that, so your remaining embedment in the concrete is what carries the load. If you are hanging heavier runs or need deeper embedment, step up to a longer anchor.

Order it as Metallics J3114. That number covers the 5/16 x 1-1/2 inch zinc plated sleeve anchor with nut, 100 to a jar, and it is the only configuration under that number.