2 1/2"-4 Fasteners | McMaster-Carr

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System of Measurement

Thread Size

Length

Material

18-8 Stainless Steel

Fastener Strength Grade/Class

Component

Nut Type

Externally Threaded

Thread Type

Thread Direction

Threading

Partially Threaded

Specifications Met

Hex Nut Profile

Height

Vertical Capacity

40,000 lb. or greater

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

Thread Fit

Unified Standard Class 2A

Unified Standard Class 2B

Thread Spacing

Width

Finish

Drive Style

Head Diameter

DFARS Specialty Metals

Diameter

Export Control Classification Number (ECCN)

REACH

RoHS

Compliant with Exemptions

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27 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 Nuts

Handle most general fastening needs

Power Transmission

Lead Screws and Nuts

Lead Screws and Nuts

Move components in a straight line in clamping and heavy duty lifting and lowering applications

Precision Lead Screws and Nuts

Precision Lead Screws and Nuts

Pair with a motor for accurate starts and stops in automated motion and positioning applications

Material Handling

Eyebolts

Route rope through the loop or attach hooks and shackles for lifting

Hoist Rings

Pivot to resist stress that would bend or break an eyebolt when lifting at an angle

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