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

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System of Measurement

Thread Size

Length

Material

18-8 Stainless Steel

Component

Fastener Strength Grade/Class

Thread Type

Nut Type

Externally Threaded

Threading

Partially Threaded

Thread Spacing

Specifications Met

Thread Direction

Hex Nut Profile

Vertical Capacity

40,000 lb. or greater

Width

Height

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

Finish

Thread Fit

Unified Standard Class 2A

Unified Standard Class 2B

Head Diameter

Drive Style

Fastener Head Type

DFARS Specialty Metals

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.)