Button Heads | McMaster-Carr

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System of Measurement

Thread Size

Length

Drive Style

Tamper-Resistant Hex

Tamper-Resistant Torx

Material

Grade 5 Titanium

Stainless Steel

Finish

Threading

Partially Threaded

Thread Pitch

Head Diameter

Head Height

Thread Direction

Rounded Head Profile

Drive Size

Thread Type

Screw Size

Thread Spacing

Specifications Met

Fastener Strength Grade/Class

Tensile Strength

Less than 60,000 psi

60,000 psi to 99,999 psi

100,000 psi to 119,999 psi

120,000 psi to 139,999 psi

140,000 psi or greater

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Screw Features

Export Control Classification Number (ECCN)

Thread Fit

Metric Class 4g6g

Metric Class 6g

Metric Class 6h

Unified Standard Class 2A

Unified Standard Class 3A

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4,457 Products

Fastening and Joining

Rounded Head Screws

Rounded Head Screws

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

Tapping Screws

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

Standoff Caps

Create a finished look on standoffs and protect them from dirt and debris

Lubricating

Grease Fittings

Grease Fittings

Create an inlet on equipment and machinery for injecting lubricant; also known as Zerk fittings

Building and Machinery Hardware

Protective Caps

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

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