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

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System of Measurement

Thread Size

Length

Threading

Fastener Strength Grade/Class

Fastener Head Type

Thread Spacing

Material

Finish

Zinc Yellow-Chromate Plated

Thread Type

UNF

UNRF

Head Width

1 7/8"

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

Specifications Met

Drive Style

Thread Fit

Unified Standard Class 1A

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

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DFARS Specialty Metals

Head Diameter

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

RoHS

Compliant

Not Compliant

Fastener Strength Rating

REACH

Export Control Classification Number (ECCN)

Hardness

Performance

86 Products

Fastening and Joining

Hex Head Screws

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

21 products

Socket Head Screws

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

14 products

Flat Head Screws

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

4 products

Threaded Rods

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

24 products

Weld Nuts

Weld to metal surfaces to add permanent threads

4 products

Material Handling

Wheel Axles

Connect rotating wheels and support vehicles

1 product

Eyebolts

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

4 products

Power Transmission

Die Spring Screw Caps

Brace springs and control tension in die sets while simplifying maintenance

1 product

Rod Ends

Use with connecting rods to support loads and control steering, tensioning, or pivoting motion

12 products

Fabricating and Machining

Gear and Bearing Puller Forcing Screws

Replace forcing screws on gear and bearing pullers

1 product