Hex Head Fasteners | McMaster-Carr

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System of Measurement

Thread Size

Length

Threading

Partially Threaded

Material

651 Silicon Bronze

Aluminum Oxide Ceramic

Grade 5 Titanium

Stainless Steel

Fastener Strength Grade/Class

ASTM Grade A325

ASTM Grade A490

Head Width

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

Thread Pitch

Thread Spacing

Drive Style

Head Height

Screw Features

Tension Indicating

Thread Direction

Thread Type

Specifications Met

Fed. Spec. FF-S-85

Screw Size

Grip Length

Tensile Strength

Less than 250 lbf

30,000 psi to 99,999 psi

100,000 psi or greater

Color

Thread Fit

Metric Class 6g

Metric Class 6h

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

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10,792 Products

Fastening and Joining

Hex Head Screws

Hex Head Screws

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

Tapping Screws

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

Fastener Assortments

Fastener Assortments

Stay prepared by keeping fasteners in common sizes and materials on hand

Wood Screws

Fasten material to wood or pieces of wood to each other

Shoulder Screws

Shoulder Screws

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

Joint Clamps for Wood

Joint Clamps for Wood

Make secure joints between boards, butcher blocks, and countertops

Set Screws

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

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 and Nuts

Lead Screws and Nuts

Components travel along a screw with broad, square threads to clamp and lift heavy loads

Fabricating and Machining

Clamps

Hold workpieces securely in place

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