4-48 Screws | McMaster-Carr

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System of Measurement

Thread Size

Length

Fastener Head Type

Drive Style

Spring Plunger Driver

Material

Stainless Steel

Threading

Partially Threaded

Head Diameter

Thread Spacing

Finish

Drive Size

Head Height

Thread Type

Socket Head Profile

Tip Type

Rounded Head Style

REACH

Hardness

Thread Direction

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

Specifications Met

Export Control Classification Number (ECCN)

Flat Head Profile

RoHS

Compliant with Exemptions

DFARS Specialty Metals

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

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124 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

Flat Head Screws

Flat Head Screws

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

Set Screws

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

Tighten and loosen by hand without the need for tools

Spring Plungers

Spring Plungers

Apply accurate, consistent pressure for positioning, indexing, and ejecting parts

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Measuring and Inspecting

Transfer Punches

Transfer Punches

Mark the center of an existing hole onto a separate workpiece

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