Hexagonal-head fastener tightened with a wrench or socket. Full-thread and half-thread variants. Specify size and length.
What the hex head bolt does on a fire line, and how to specify it.
The hex head bolt is the externally threaded fastener tightened with a wrench or socket. In a hanger assembly it is often the part that clamps the hanger body to the pipe or to the anchor plate. It comes in full-thread and half-thread forms: full-thread where the whole shank needs to engage, half-thread where a plain shank is wanted for the grip and only the end threads.
State the size and the length, and whether you want the full-thread or the half-thread form. The length has to carry the bolt through the stack of parts and leave room for the nut and washer to take up the load without the bolt bottoming out short.
Carbon steel, electro-galvanized, matching the nuts and washers it is used with. The finish protects the thread at the point where the bolt does its work.
Send the line with the rest of the assembly rather than as a single part. State the size against the pipe outside diameter it serves, the finish, and the count. Pair it with the matching threaded rod, nuts, washers and anchors from the same range, and flag whether the design needs the fire-rated, FM/UL marked version, so the support arrives with the pipe instead of chasing it later.
Full thread where the whole shank should engage, half thread where a plain grip length is wanted and only the end threads. Specify which in the order.
State the size, the length, and the thread form. Pair with the matching nut and washer.
Carbon steel, electro-galvanized.
Selection guides and field notes on fire protection pipe, fittings and supports.
Send your bill of materials or drawing — we confirm spec, cert and lead time, then ship the full package.
