4-48 Bolts | 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

Socket Head Profile

Head Height

Thread Type

Tip Type

Rounded Head Style

Thread Direction

Hardness

Tensile Strength

30,000 psi to 99,999 psi

100,000 psi or greater

REACH

Export Control Classification Number (ECCN)

Thread Fit

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

RoHS

Compliant with Exemptions

Specifications Met

DFARS Specialty Metals

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

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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

Tighten and loosen by hand without the need for tools

Set Screws

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

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

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