Hex Head Fasteners | McMaster-Carr

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System of Measurement

Thread Size

Length

Material

651 Silicon Bronze

Ceramic Alumina

Grade 5 Titanium

Stainless Steel

Threading

Partially Threaded

Fastener Strength Grade/Class

ASTM Grade A325

ASTM Grade A490

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

Head Width

Thread Pitch

Thread Spacing

Screw Features

Tension Indicating

Drive Style

Head Height

Thread Type

Specifications Met

Fed. Spec. FF-S-85

Thread Direction

Screw Size

Tensile Strength

Less than 250 lbf

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 6g

Metric Class 6h

Metric Class 6H

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Grip Length

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Color

Export Control Classification Number (ECCN)

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13,499 Products

Fastening and Joining

Hex Head Screws

Hex Head Screws

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

11,524 products

Tapping Screws

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

Fastener Assortments

Fastener Assortments

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

Wood Screws

Fasten material to wood or pieces of wood to each other

Concrete Screws

Concrete Screws

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

Joint Clamps for Wood

Joint Clamps for Wood

Make secure joints between boards, butcher blocks, and countertops

Shoulder Screws

Shoulder Screws

Rotate parts around the cylinder under the head to guide and align them during installation

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

Anchors

Secure anything from signs to heavy machinery in concrete, brick, and drywall

Rivets

Join materials together permanently, especially when too thin or fragile to fasten with screws

Power Transmission

Lead Screws

Pair with lead screw nuts to move components in a straight line

Electrical

Electrical Enclosure Fasteners

Electrical Enclosure Fasteners

Mount components to your enclosure without worrying about leaks

Fabricating and Machining

Clamping Screws

Clamping Screws

Apply pressure through a flat-tipped screw to hold material in place

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