Metric Hex Head Screws | McMaster-Carr

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System of Measurement

Thread Type

Thread Size

Length

Material

Stainless Steel

Fastener Head Type

Thread Pitch

Threading

Partially Threaded

Finish

Corrosion-Resistant Coated

Hot-Dipped Galvanized

Phosphate Coated

Titanium Carbon Nitride (TiCN) Coated

Zinc Flake Coated

Zinc Yellow-Chromate Plated

Fastener Strength Grade/Class

Drive Style

Hex with Pilot Recess

Tamper-Resistant Hex

Head Height

Head Width

Specifications Met

Thread Spacing

Socket Head Profile

Screw Features

Thread Direction

Head Diameter

Drive Size

Shoulder Length

4 mm to 49.75 mm

6 mm to 49.75 mm

Color

RoHS

Compliant with Exemptions

DFARS Specialty Metals

Export Control Classification Number (ECCN)

REACH

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11,902 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

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

Wood Screws

Fasten material to wood or pieces of wood to each other

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish that won't snag on surrounding parts

Set Screws

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

Shoulder Screws

Shoulder Screws

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

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

Binding Barrels and Screws

Binding Barrels and Screws

Thread together for a low-profile fastener

Magnets

Attract or repel metal objects to hang, secure, or position them

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

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