Stop Blocks | McMaster-Carr

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2,545 Products

Building and Machinery Hardware

Bumpers

Absorb impact to protect equipment and surfaces from dents and scuffs

1,785 products

Door Stops

Keep doors from slamming into and damaging walls

70 products

Surface Guards

Protect walls and other flat surfaces from impact

5 products

T-Slotted Framing Conveyor End Stops

Halt totes, boxes, and other objects at the end of a T-slotted framing conveyor line

1 product

Strut Channel End Stops

Keep trolleys, slides, and other hanging components from rolling out of channels

1 product

Door Wedges

Simply slide under doors to keep them open

9 products

Door Tracks

Hang panels to slide over openings when there’s not space for a swinging door

11 products

Fabricating and Machining

Locating and Support Pads

Position larger workpieces and fixtures than locating and support buttons; also known as rest pads

6 products

Fixture Keys

Locate fixtures and vises on your machine table

39 products

Locating Rails

Locate the side of a workpiece in your fixture without milling a permanent slot

8 products

Spring Stops

Push back against workpieces to hold them in place against stops and rails

34 products

Vise Stops

Prevent horizontal movement within machine vises to keep workpieces in place

5 products

Milling Machine Depth Stops

Avoid cutting too deep by attaching to your machine’s quill

1 product

Drill Stops

Limit how far bits can drill to create identical hole depths every time

145 products

Lathe Chuck Stops

Consistently position short parts in lathe chucks without spacers to reduce setup time

4 products

Lathe Collet Stops

Prevent parts from pushing back into the collet while machining

3 products

Lathe Spindle Stops

Load material in the same spot every time for consistent machining from piece to piece

3 products

Push Sticks

Keep hands at a safe distance while cutting with table saw blades and router bits

2 products

Material Handling

Ball Transfer Stops

Raise to hold loads in place and lower to let them through

1 product

Conveyor Stops

Control product flow and let items accumulate

8 products

Conveyor Package Stops

Mount across your conveyor to hold material

3 products

Wire Rope Stops

Prevent wire rope from pulling out of cleats and guides or keep ends from fraying

33 products

Wheel Chocks

Secure wheels in place while loading, unloading, and servicing vehicles

50 products

Railcar Wheel Stops

Stop railcars at track ends and the approaches to buildings and doors

5 products

Railcar Wheel Chocks

Keep railcars stationary during loading, unloading, and servicing

9 products

Rope Stops

Keep rope from slipping through pulleys and cleats or add a grip to a pull cord

4 products

Railcar Stoppers

Bring slow-moving railcars to a halt until you can install a permanent chock

1 product

Floor Locks

Stabilize carts, trucks, workbenches, and other mobile equipment during loading and unloading

29 products

Safety Equipment

Fire Stops

Prevent fire and smoke from passing through holes in fire-resistant walls and floors

59 products

Flood Gates

Stop flood waters from getting in and damaging your facility

7 products

Parking Curbs

Designate parking spaces and block drivers from pulling too far into a space

6 products

Bollards

Anchor to the ground or floor to block vehicle access

26 products

Sorbents

Soak up spills to stop them from spreading

53 products

Sand Bags

Fill with sand to block flood waters, create barriers, and weigh down equipment

11 products

Spill-Control Berms

Form a barrier around leaks and spills to stop them from spreading

35 products

Electrical Power, Networking, and Controlling

DIN Rail Spacers

Slide along rails to separate and organize terminal blocks, relays, and other components

1 product

DIN Rail Stops

Keep components such as terminal locks and relays from shifting on rails

11 products

Power Transmission

Stopper Cylinders

Extend to stop loads on a conveyor and retract to let them pass

8 products

Parts Metering Cylinders

Space out parts to control flow on conveyors and feeders

12 products

Containers, Storage, and Furniture

Hose Stops

Prevent hose from winding all the way back onto reels; also known as bumper or ball stops

7 products

Workbench Back and End Stops

Keep tools and parts from sliding off workbenches

13 products

Facility and Grounds Maintenance

Fencing

Metal chicken wire, plastic fencing, fabric erosion-control fencing, and wood drift fencing

3 products

Fence Screens

Attach to a fence to obscure the view

9 products

Lighting

Landscape Lights

A directed beam of light illuminates paths, signs, flags, and landscape elements

4 products