Hollow Screws | McMaster-Carr

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Material

18-8 Stainless Steel

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Partially Threaded

Threaded on Both Ends

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Metric Class 4g6g

Metric Class 6g

Unified Standard Class 2A

Unified Standard Class 3A

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366 Products

Fastening and Joining

Set Screws

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

Socket Head Screws

Socket Head Screws

With a deeper drive than flat and rounded head screws, these withstand more torque for a tighter hold

Studs

Press, weld, or screw in place to add a threaded fastening point

Hex Head Screws

Hex Head Screws

Used with nuts to create a stronger joint than flat and rounded screws

Rounded Head Screws

Rounded Head Screws

Sit just above the surface for a low-profile finish and hold tighter than flat head screws

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish that won't snag on surrounding parts

Power Transmission

Ball Screw/Splines and Bearings

Ball Screw/Splines and Bearings

Transmit rotary power, move loads along the shaft, or do both at once

Building and Machinery Hardware

Strut Channel Nuts

Strut Channel Nuts

Fasten on threaded rod to connect components to strut channel

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)