Threaded at both ends with an unthreaded middle, double-end studs make and break bolted flange joints without turning the stud; B7/L7 grades for pressure and pipework.
Conforms to

Threaded both ends with a plain centre for flange joints.
A cross-section of stocked configurations. Not exhaustive — diameters, lengths, grades, and finishes extend across the full range on request.
Representative specifications — not exhaustive · NXB-DES
Match the line to the load, the environment, and the standard it answers to.
Materials
Finishes
Standards
Typical applications
Served industries
Mating parts and adjacent lines engineers reach for alongside this one.
Interference thread one end, nut thread the other.
M8–M30 · 3/8"–1-1/4"
Continuously threaded studding cut to any length.
M6–M36 · 1/4"–1-1/2"
Long hex body joins two lengths of male thread.
M6–M24 · 1/4"–1"
The standard six-sided nut for threaded assemblies.
M3–M48 · #4–2"
Grade, material, finish, and standard — matched to your joint and quoted from stock. Tell us the load case and we’ll confirm the line.