2-56 Bolts | McMaster-Carr

Filter by

System of Measurement

Thread Size

Length

Material

Aluminum Oxide Ceramic

Grade 2 Titanium

Stainless Steel

Fastener Head Type

Drive Style

Threading

Partially Threaded

Head Diameter

Finish

Corrosion-Resistant Coated

Zinc Yellow-Chromate Plated

Head Height

Socket Head Profile

Specifications Met

Federal Specification

Rounded Head Style

Thread Type

Thread Spacing

Drive Size

Countersink Angle

Screw Size

Tensile Strength

Less than 10,000 psi

20,000 psi to 29,999 psi

30,000 psi to 99,999 psi

100,000 psi or greater

Head Width

Flat Head Profile

Thread Direction

DFARS Specialty Metals

REACH

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

How can we improve?

1,242 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

Rounded Head Screws

Rounded Head Screws

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

Hex Head Screws

Hex Head Screws

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

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish

Shoulder Screws

Shoulder Screws

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

Set Screws

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

Studs

Press, weld, or screw in place to add a threaded fastening point

Tapping Screws

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

Captive Panel Screws

Captive Panel Screws

Secure panels and enclosures while still having access to them

Threaded Rods

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

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Standoffs

Threaded to separate or connect parts as well as position components in assemblies

Fabricating and Machining

Fixturing Clamps

Fixturing Clamps

Secure your workpiece to a fixture table so it won't move during machining

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