Mechanical interfaces
Fasteners, Bushings & Hardware replacement guide
Identify bolts, screws, nuts, washers, pins, retaining rings, threaded inserts, keys, taper-lock and QD bushings, locking devices, shaft collars, spacers, anchors, and machine hardware by standard, material, geometry, and load.
Evidence boundary. Hardware substitutions can alter preload, fatigue life, shaft retention, and safety. Preserve the standard, grade, material, coating, fit, and locking method instead of matching dimensions alone.
Items covered01 · 18 component types
- Bolts
- Machine screws
- Nuts
- Washers
- Threaded rod
- Retaining rings
- Dowel pins
- Spring pins
- Taper pins
- Plain bushings
- Flanged bushings
- Taper-lock bushings
- QD bushings
- Keyless locking bushings
- Industrial hinges
- Latches
- Handles
- Clamps
What to capture02
Fastener or hardware standard, grade, material, coating, and markingsRecord this before searching for a substitute.
Thread diameter, pitch, length, fit, and head or drive styleRecord this before searching for a substitute.
Bushing bore, keyway, taper, hub, bolt pattern, and seriesRecord this before searching for a substitute.
Pin, ring, collar, spacer, or insert geometry and retention methodRecord this before searching for a substitute.
Load, torque, temperature, corrosion, vibration, and safety functionRecord this before searching for a substitute.
What must match03
Thread or taper standard and complete geometryConfirm it against the original equipment, duty, and source documentation.
Material, strength grade, hardness, and coatingConfirm it against the original equipment, duty, and source documentation.
Bore, keyway, fit, and retentionConfirm it against the original equipment, duty, and source documentation.
Load, torque, vibration, fatigue, and temperatureConfirm it against the original equipment, duty, and source documentation.
Corrosion, locking method, installation procedure, and safety roleConfirm it against the original equipment, duty, and source documentation.
Common searches04
What bushing replaces this number?
How do I identify this fastener or retaining ring?
What shaft collar or locking device fits this shaft?
Can I replace a bolt or bushing by dimensions alone?
Authoritative starting points05