Contact Screws | McMaster-Carr

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System of Measurement

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Material

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Specifications Met

Tip Diameter

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Unified Standard Class 2A

Unified Standard Class 3A

DFARS Specialty Metals

Compliant

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Performance

Tip Length

Threading

5,696 Products

Fastening and Joining

Set Screws

Exert pressure at the tip to hold parts in place, unlike screws that hold material together with threads

5,325 products

Thumb Screws

Tighten and loosen by hand without the need for tools

183 products

Fabricating and Machining

Locating and Support Buttons

Secure and position workpieces and fixtures from the bottom or side

54 products

Grippers

Clamp against uneven or irregularly shaped parts such as castings for a secure hold

41 products

Clamp Holding Screws

Replace worn holding screws in clamps or customize with different sizes or styles

52 products

Clamp Holding Screw Tips

Cover metal holding screws to protect workpieces from scratches

12 products

Swivel Pads

Attach to the ends of screws, threaded studs, or C-clamps to apply even pressure on uneven surfaces

50 products

Building and Machinery Hardware

Slip-On Framing Fasteners

Replace set screws used on slip-on framing

2 products