The Benchmark Abrasives 5/8"-11 quick release angle grinder nut is a compact replacement retaining nut designed to make wheel changes faster and more convenient on compatible angle grinders. Its hand-tightening design eliminates the need to reach for a spanner wrench during routine wheel changes, making it especially useful in fabrication, welding, maintenance, and repair environments where abrasives are changed frequently.
The nut uses a 5/8"-11 thread, the common spindle size found on many U.S. angle grinders, and has a compact 1-5/8" outside diameter with a 1/2" overall height. Its low-profile shape helps keep the mounting setup compact while providing a simple, tool-free way to secure compatible grinding and cutting accessories.
Compatibility depends on more than thread size alone. The grinder must use a 5/8"-11 spindle and also provide the correct flange seat, thread engagement, guard clearance, and retention setup for the accessory being mounted. This nut should not be treated as a universal fit for every 4-1/2"–9" angle grinder.
Self-locking nut = NO MORE SPANNER WRENCH
Never lose time or your sanity searching for lost spanner wrenches/grinder nuts again!!!
Quantity: 1 Quick Release Nut
Product Specifications
Specification
Details
Product Type
Quick Release Angle Grinder Nut
Thread
5/8"-11 UNC
Outside Diameter
1-5/8"
Height
1/2"
Tightening Method
Hand Tighten
Quantity
1 Nut
Applications
Best For:
Angle grinder wheel changes
Fabrication shops
Welding operations
Maintenance departments
Automotive and equipment repair
Frequent abrasive changes
General metalworking
Machine Compatibility
Designed for compatible angle grinders with a 5/8"-11 spindle and a wheel-retention setup that accommodates the nut's dimensions and clamping method.
Compatible examples include:
Angle grinders with a 5/8"-11 spindle when flange seating, thread engagement, accessory thickness, guard clearance, and retention requirements are all appropriate
A matching 5/8"-11 thread does not automatically establish complete compatibility. Always verify the grinder's mounting instructions and the requirements of the wheel or accessory being installed.
This nut is not compatible with grinders using:
M14 spindles
M10 spindles
X-LOCK® or other proprietary mounting systems
Safety Tips
Confirm the grinder uses a 5/8"-11 spindle before installation.
Verify adequate thread engagement before operating the tool.
Confirm the nut seats correctly against the wheel or accessory and the required flange arrangement.
Make sure the nut clears the grinder guard and surrounding components.
Hand tighten securely. Do not use a wrench or other tool to tighten this nut.
Inspect the nut and spindle threads before use and do not use damaged components.
Verify the mounted wheel or accessory is approved for the grinder's diameter and RPM.
Never remove or modify the grinder guard to create clearance for the nut.
Wear appropriate eye and face protection, hearing protection, gloves, and other PPE required for the application.
The Benchmark Abrasives 5/8"-11 quick release angle grinder nut is a compact replacement retaining nut designed to make wheel changes faster and more convenient on compatible angle grinders. Its hand-tightening design eliminates the need to reach for a spanner wrench during routine wheel changes, making it especially useful in fabrication, welding, maintenance, and repair environments where abrasives are changed frequently.
The nut uses a 5/8"-11 thread, the common spindle size found on many U.S. angle grinders, and has a compact 1-5/8" outside diameter with a 1/2" overall height. Its low-profile shape helps keep the mounting setup compact while providing a simple, tool-free way to secure compatible grinding and cutting accessories.
Compatibility depends on more than thread size alone. The grinder must use a 5/8"-11 spindle and also provide the correct flange seat, thread engagement, guard clearance, and retention setup for the accessory being mounted. This nut should not be treated as a universal fit for every 4-1/2"–9" angle grinder.
Self-locking nut = NO MORE SPANNER WRENCH
Never lose time or your sanity searching for lost spanner wrenches/grinder nuts again!!!
Quantity: 1 Quick Release Nut
Product Specifications
Specification
Details
Product Type
Quick Release Angle Grinder Nut
Thread
5/8"-11 UNC
Outside Diameter
1-5/8"
Height
1/2"
Tightening Method
Hand Tighten
Quantity
1 Nut
Applications
Best For:
Angle grinder wheel changes
Fabrication shops
Welding operations
Maintenance departments
Automotive and equipment repair
Frequent abrasive changes
General metalworking
Machine Compatibility
Designed for compatible angle grinders with a 5/8"-11 spindle and a wheel-retention setup that accommodates the nut's dimensions and clamping method.
Compatible examples include:
Angle grinders with a 5/8"-11 spindle when flange seating, thread engagement, accessory thickness, guard clearance, and retention requirements are all appropriate
A matching 5/8"-11 thread does not automatically establish complete compatibility. Always verify the grinder's mounting instructions and the requirements of the wheel or accessory being installed.
This nut is not compatible with grinders using:
M14 spindles
M10 spindles
X-LOCK® or other proprietary mounting systems
Safety Tips
Confirm the grinder uses a 5/8"-11 spindle before installation.
Verify adequate thread engagement before operating the tool.
Confirm the nut seats correctly against the wheel or accessory and the required flange arrangement.
Make sure the nut clears the grinder guard and surrounding components.
Hand tighten securely. Do not use a wrench or other tool to tighten this nut.
Inspect the nut and spindle threads before use and do not use damaged components.
Verify the mounted wheel or accessory is approved for the grinder's diameter and RPM.
Never remove or modify the grinder guard to create clearance for the nut.
Wear appropriate eye and face protection, hearing protection, gloves, and other PPE required for the application.
Frequently Asked Questions
No. It is designed for grinders with a 5/8"-11 spindle, but thread size alone does not establish full compatibility. Flange seating, thread engagement, nut clearance, guard clearance, and the accessory being mounted must also be appropriate.
The nut has a 1-5/8" outside diameter and is 1/2" high.
No. This nut is designed for hand tightening; do not tighten it with a wrench or other tool.
No. A 5/8"-11 thread is different from an M14 spindle.
No. X-LOCK® uses a proprietary mounting system rather than a conventional 5/8"-11 threaded spindle.
Only when the wheel or accessory, flange arrangement, thread engagement, nut dimensions, and grinder instructions all support the setup. A matching spindle thread alone is not enough.
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