Single-End Studs are used primarily for providing one threaded end for a blind or permanent attachment where a headed bolt cannot pass through. This page lists the industries and assemblies where they are specified, the selection criteria that matter for each application, installation practice, and the cases where a different fastener type is the correct choice. Parts are supplied to Trade series (single-end studs). Stocked across roughly 6 mm to 10 mm, they cover general to heavy-duty work.
Typical Applications for Single-End Studs
The most common settings where these are specified:
- Jig construction: The unthreaded end locates a plate while the threaded end secures it.
- Hinge mechanisms: Single-end studs provide a compact pivot and attachment point.
- Instrument fixtures: 304 stainless supports small locating shafts.
- Prototype machinery: Several overall lengths fit different standoff and pivot stacks.
How to Specify Single-End Studs for Your Application
- Size: Match the nominal size to the mating thread or hole. This product spans 6 mm–10 mm; check the full table below for the exact dimensions of each size.
- Strength class: Choose the property class (e.g. 8.8, 10.9, 12.9 or A2/A4 stainless) for the load and environment, and tighten to the matching torque so the joint relies on preload, not friction.
- Environment: For damp, coastal or chemical exposure prefer A4/316 stainless or a suitable coating; indoors, plated steel or A2 is usually sufficient.
- Standard: This product is supplied to Trade series (single-end studs). Quoting the standard on your order guarantees interchangeable dimensions between suppliers.
Installation & Assembly Practice
- Tighten to the torque for the size and property class with a calibrated wrench — the joint is held by preload, not by the thread friction alone.
- Ensure at least one full thread projects beyond the nut after tightening, and never re-use a bolt that has been tightened into yield.
- Under slotted or oversized holes, fit a hardened washer so the preload does not relax into the hole edge.
Common Selection Mistakes with Single-End Studs
- Specifying class 12.9 "to be safe" in a corrosive environment — high classes are more sensitive to hydrogen embrittlement and stress corrosion; 8.8 hot-dip galvanized often outlasts them outdoors.
- Choosing a length that puts the shear plane through the threaded portion when a plain shank (partially threaded bolt) was available.
- Mixing stainless bolts with plated-steel nuts: the joint loses its corrosion logic and can gall or seize.
Where Single-End Studs Are Not the Right Choice
Not for permanent joints that will never be opened (a rivet or weld is cheaper), and not where the head must sit flush — use a countersunk screw instead.
