1 1/4"-12 Screws | McMaster-Carr

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System of Measurement

Thread Size

Length

Threading

Partially Threaded

Fastener Strength Grade/Class

Fastener Head Type

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Material

4130 Alloy Steel

Finish

Zinc Yellow-Chromate Plated

Thread Type

Head Height

Head Width

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

Thread Direction

Specifications Met

Head Diameter

Drive Style

Thread Fit

Unified Standard Class 1A

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Socket Head Profile

Drive Size

DFARS Specialty Metals

Hardness

REACH

RoHS

Export Control Classification Number (ECCN)

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73 Products

Fastening and Joining

Hex Head Screws

Hex Head Screws

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

Socket Head Screws

Socket Head Screws

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

Flat Head Screws

Flat Head Screws

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

Threaded Rods

Anchor, connect, or hang components in a wide variety of applications

Weld Nuts

Weld to metal surfaces to add permanent threads

Material Handling

Wheel Axles

Connect rotating wheels and support vehicles

Eyebolts

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

Fabricating and Machining

Gear and Bearing Puller Forcing Screws

Gear and Bearing Puller Forcing Screws

Replace forcing screws on gear and bearing pullers

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