Common Hex Key Sizes Used in Machining Workshops
Technicians regularly use a consistent range of hex key sizes when servicing machining equipment.
2 mm – small adjustment screws used inside machine assemblies
2.5 mm – toolholder set screws or small fixture fasteners
3 mm – socket bolts used in light machining fixtures
4 mm – common socket head cap screws used in machine tooling
5 mm – clamping system fasteners
6 mm – larger bolts used in machine assemblies
8 mm – heavy duty socket bolts used in industrial equipment
Keeping these sizes available ensures technicians can service most machining fasteners quickly.
Built for Australian Workshop & Machining Environments
Machining workshops across Australia rely on dependable fastening tools when servicing equipment used in production environments. Röhm hex keys & Allen wrenches are commonly used in CNC machining centres, fabrication shops & industrial maintenance facilities where internal hex fasteners secure toolholding systems, fixtures & machine assemblies.
Automotive manufacturing facilities operate machining equipment to produce drivetrain components which requires regular servicing of machine fixtures & clamping systems. Fabrication workshops also assemble equipment used across construction & heavy machinery industries where socket head cap screws secure mechanical parts. Industrial maintenance teams working across manufacturing plants & logistics facilities depend on hex keys when repairing machinery or installing replacement fasteners.
Industrial Shed supplies professional workshop equipment trusted by technicians working across engineering workshops, manufacturing plants, logistics facilities & industrial maintenance environments. Orders are supported by Same day dispatch helping workshops maintain equipment without delays. Customers also benefit from tool & equipment Care when sourcing professional workshop tools.
Technicians performing workshop maintenance frequently rely on Workbenches, Tap & Die Sets & Drill Accessories when repairing threaded fasteners or installing replacement hardware.
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Equip Your Workshop with Reliable Fastening Tools
Fastening tasks appear in nearly every machining or maintenance job. Röhm hex keys & Allen wrenches provide the accurate fit required to tighten internal hex fasteners without damaging the socket.
Browse the collection at Industrial Shed to source professional hex keys used by machinists, technicians & fabrication specialists working across Australian industrial workshops.