Hex Caps | McMaster-Carr

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System of Measurement

Thread Size

Length

Material

Aluminum Oxide Ceramic

Stainless Steel

Threading

Partially Threaded

Fastener Head Type

Finish

Black Zinc Plated

Corrosion-Resistant Coated

Hot-Dipped Galvanized

Phosphate Coated

Zinc Flake Coated

Fastener Strength Grade/Class

ASTM Grade A325

ASTM Grade A490

Drive Style

Hex with Pilot Recess

Thread Type

UN/UNF (SAE Straight)

Socket Head Profile

Thread Pitch

Head Height

Head Width

Thread Spacing

Specifications Met

Federal Specification

Thread Direction

Head Diameter

Tensile Strength

Less than 100,000 psi

100,000 psi to 109,999 psi

110,000 psi to 129,999 psi

130,000 psi to 149,999 psi

150,000 psi or greater

Screw Features

Tension Indicating

Drive Size

Thread Fit

Metric Class 4g6g

Metric Class 5g6g

Metric Class 6g

Metric Class 6h

Metric Class 6H

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Unified Standard Class 3B

DFARS Specialty Metals

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

REACH

How can we improve?

19,555 Products

Fastening and Joining

Hex Head Screws

Hex Head Screws

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

Socket Head Screws

Socket Head Screws

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

Tighten and loosen by hand without the need for tools

Cap Nuts

Cover and protect threads while adding a finished look; also known as acorn nuts

Fluid Handling

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

Pipe Plugs

Insert into the ends of pipe to keep out dirt and debris

Tube and Tube Fittings

Tube and Tube Fittings

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

Building and Machinery Hardware

Protective Caps

Protective Caps

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

Protective Plugs

Protective Plugs

Insert into holes in pipe, containers, panels, and parts to keep out debris

Fabricating and Machining

T-Tracks

Add fixturing to flat surfaces on machines such as table saws, CNC routers, and drill presses

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