Hollow Bolts | McMaster-Carr

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System of Measurement

Thread Size

Length

Material

18-8 Stainless Steel

Fastener Head Type

Threading

Partially Threaded

Threaded on Both Ends

Drive Style

Vent Diameter

Thread Pitch

Thread Type

Drive Size

Thread Spacing

Finish

Hole Diameter

Thread Length

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Thread Fit

Metric Class 4g6g

Metric Class 6g

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Hardness

Head Diameter

For Material Thickness

1 5/8" to 2 3/8"

1 13/16" to 2 3/4"

REACH

RoHS

Tensile Strength

Head Width

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338 Products

Fastening and Joining

Socket Head Screws

Socket Head Screws

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

Hex Head Screws

Hex Head Screws

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

Studs

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

Set Screws

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

Flat Head Screws

Flat Head Screws

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

Standoffs

Threaded to separate or connect parts as well as position components in assemblies

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.)