Hollow Screws | McMaster-Carr

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System of Measurement

Thread Size

Length

Material

18-8 Stainless Steel

Fastener Head Type

Drive Style

Threading

Partially Threaded

Threaded on Both Ends

Drive Size

Thread Type

Thread Spacing

Finish

Thread Pitch

Thread Fit

Metric Class 4g6g

Metric Class 6g

Unified Standard Class 2A

Unified Standard Class 3A

Hardness

RoHS

REACH

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Tensile Strength

Specifications Met

Hole Diameter

Thread Length

OD

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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

Building and Machinery Hardware

Strut Channel Nuts

Strut Channel Nuts

Fasten on threaded rod to connect components to strut channel

Power Transmission

Ball Screw/Splines

Ball Screw/Splines

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

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