Metallics JBLS88 Bolts 3/4 x 3 Hx Lag Blt St-zn (Jar 10)

No. The JBLS88 is a zinc plated steel lag bolt intended for use in wood in non-corrosive environments. Zinc plating handles indoor and dry conditions; for exterior, damp, or chemically aggressive locations choose a hot dip galvanized or 18-8 stainless lag screw of the same 3/4 x 3 size instead.

Minimum tensile strength is 60,000 psi, with hardness in the Rockwell B70 to B100 range. The steel is low carbon, AISI 1006 to 1022, and the bolt is dimensioned to ASME B18.2.1-1996. That is standard commercial lag screw strength, suitable for hanging conduit, strut, equipment and framing anchorage into wood, not for a structural high strength bolted connection calling for a graded bolt.

No. This is a wood lag bolt with a gimlet point and spaced wood threads. Into concrete, block or brick you need a concrete screw or an expansion anchor, or a lag shield insert set in the masonry that a 3/4 inch lag can thread into.

No on both counts. These lag bolts are not Buy American compliant and not ARRA compliant, with country of origin listed as multiple. On a federally funded project with domestic sourcing requirements you will need a domestically manufactured lag screw instead.

The hex head measures 1.088 to 1.125 inches across the flats, so a 1-1/8 inch socket or wrench is the one to bring. Across corners it runs 1.240 to 1.299 inches. It is a driven hex head only, there is no slot or drive recess.

It is a full bodied bolt with spaced lag threads and a gimlet point, 3 inches long under the head. The spaced thread form is cut for wood, so it is a lag screw rather than a machine bolt, and it takes no nut.

The JBLS88 ships as a jar of 10 pieces, and 10 each is the order minimum, so one jar is the smallest buy. Other sizes and quantities are available by request.

Yes, that is the intended use. Metallics lists this lag bolt for the electrical, plumbing, heating and air conditioning trades, anchoring into wood framing, blocking or structural members. At 3 inches long it suits lagging through a hanger or strut ear directly into solid wood.

The jar holds lag bolts only, no washers. Spec data lists a 0.375 inch washer OD reference, but plan on sourcing flat washers separately if you are lagging through sheet metal hangers or soft wood where the head would crush in.

Right hand thread, so they drive in clockwise. Standard for every lag screw a contractor will meet on site, and it matters only if you are backing one out of an existing install and wondering why it will not move.