Allen Cap Screws | McMaster-Carr

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Drive Style

Hex with Pilot Recess

Tamper-Resistant Hex

System of Measurement

Thread Size

Length

Material

Ceramic Alumina

Stainless Steel

Fastener Head Type

Threading

Partially Threaded

Finish

Black Zinc Plated

Corrosion-Resistant Coated

Galvanic Barrier Coated

Hot-Dipped Galvanized

Phosphate Coated

Ultra-Corrosion-Resistant Coated

Zinc Flake Coated

Zinc Yellow-Chromate Plated

Socket Head Profile

Head Diameter

Head Height

Fastener Strength Grade/Class

ASTM Grade A325

ASTM Grade A490

Thread Pitch

Thread Type

Thread Direction

Specifications Met

Federal Specification

Thread Spacing

Drive Size

Tensile Strength

Less than 10,000 psi

10,000 psi to 19,999 psi

20,000 psi to 29,999 psi

30,000 psi to 99,999 psi

100,000 psi or greater

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

Head Width

Screw Size

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

How can we improve?

26,185 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

Hex Head Screws

Hex Head Screws

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

11,503 products

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

Fastener Assortments

Fastener Assortments

Keep a variety of common screws, nuts, and washers on hand

Captive Panel Screws

Captive Panel Screws

Secure panels and enclosures while still having access to them

Tapping Screws

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

Concrete Screws

Concrete Screws

Anchor parts to concrete, block, and brick without tapping the hole first

Building and Machinery Hardware

Protective Plugs

Protective Plugs

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

Clamp-On Framing and Fittings

Clamp-On Framing and Fittings

Two-piece fittings let you modify assembly stations, conveyors, and racks without dismantling them

Electrical

Electrical Enclosure Fasteners

Electrical Enclosure Fasteners

Mount components to your enclosure without worrying about leaks

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