How to Specify Titanium Spacers and Standoffs

Start by identifying whether the part only controls separation or also provides threaded attachment. A spacer normally has a clearance bore; a standoff contains internal or external threads.
RFQ Dimensions
- Round or hex body and outside diameter or across-flats
- Through bore, female thread, male thread or combination
- Body length separated from male-thread projection
- Thread depth, class, pitch, hand and engagement
- End squareness, concentricity, shoulders and chamfers
Load and Installation
State compression, tension, bending, vibration, tightening torque, mating hardware, bearing faces, wrench access, temperature and corrosion exposure. Long slender standoffs require buckling and bending review.
Inspection
Control body length, bore or threads, outside diameter or flats, projections, squareness and concentricity. Add MTC and lot traceability, plus dimensional reporting for critical assemblies.
Send a Dimensioned Part Definition
See Titanium Spacers and Standoffs and identify each body, bore and thread dimension separately.
FAQ
Is body length the overall length?
Not for a male-female standoff. Body length and external-thread projection should be stated independently.
When is hex form useful?
Hex flats provide wrench access for installation, but envelope, bearing area and stress must be checked.
Related Reading
Titanium Threaded Inserts vs Tapped Holes · Titanium Machining Tolerances and Inspection

