ANSI Bolts | McMaster-Carr

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Specifications Met

Federal Specification

System of Measurement

Thread Size

Length

Material

Threading

Fastener Head Type

Finish

Corrosion-Resistant Coated

Dyed

Galvanized

Hot-Dipped Galvanized

Zinc Yellow-Chromate Plated

Fastener Strength Grade/Class

Head Width

Drive Style

Tamper-Resistant Torx

Tamper-Resistant Torx Plus

Thread Spacing

Thread Direction

Thread Type

Head Height

Tensile Strength

10,000 psi to 19,999 psi

20,000 psi to 29,999 psi

30,000 psi to 99,999 psi

100,000 psi or greater

Thread Fit

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Grip Length

Socket Head Profile

Head Diameter

Screw Features

DFARS Specialty Metals

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

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

Yes

Export Control Classification Number (ECCN)

25,012 Products

Fastening and Joining

Hex Head Screws

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

5,503 products

Rounded Head Screws

Sit just above the surface for a low-profile finish and hold tighter than flat head screws

5,919 products

Socket Head Screws

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

2,460 products

Flat Head Screws

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

3,243 products

Carriage Bolts

A smooth head provides a finished look while a square neck keeps the bolt in place when using a nut

753 products

Shoulder Screws

Rotate parts around the cylinder under the head to guide and align them during installation

1,993 products

Set Screws

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

3,143 products

Tapping Screws

Fasten a range of materials together without needing to tap the hole first

488 products

Square Head Screws

Turn the large flat sides with a wrench into square holes that stop further rotation

80 products

Oval Head Screws

The domed top sits slightly above the surface of countersunk holes for a decorative look

202 products

Plow Bolts

The head sits flush with countersunk holes while the bolt stays in place when tightening a nut

20 products

Wood Screws

Fasten material to wood or pieces of wood to each other

353 products

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

9 products

Weld Nuts

Weld to metal surfaces to add permanent threads

54 products

Sockets

Turn fasteners with an external drive style without slipping and damaging the drive

241 products

Material Handling

Hoist Rings

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

350 products

Eye Nuts

Pair with bolts or threaded rod to lift and hang components

4 products

U-Bolts

Anchor heavy pipe, tube, and conduit; stronger than routing clamps and hangers

169 products

Containers, Storage, and Furniture

Pallet Rack Locking Pins

Prevent forklifts from dislodging pallet rack beams when loading and unloading pallets

2 products