Keyhole Screws | McMaster-Carr

Filter by

System of Measurement

Thread Size

Length

Material

Stainless Steel

Drive Style

Drilled Spanner

Hex with Pilot Recess

Square/Phillips

Tamper-Resistant Hex

Tamper-Resistant Torx

Tamper-Resistant Torx Plus

Fastener Head Type

Finish

Black Zinc Plated

Corrosion-Resistant Coated

Galvanic Barrier Coated

Phosphate Coated

Head Diameter

Threading

Partially Threaded

Socket Head Profile

Head Height

Shoulder Diameter

Shoulder Length

Screw Size

Rounded Head Style

Tip Type

Drive Size

Thread Type

Flat Head Profile

Thread Pitch

Thread Direction

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Export Control Classification Number (ECCN)

How can we improve?

36,586 Products

Shoulder Screws

Standard Shoulder Fit

Stainless Steel Hex-Drive Shoulder Screws

Stainless Steel Hex-Drive Shoulder Screws

Hold up against moisture and chemicals better than steel counterparts

Steel Hex-Drive Shoulder Screws

Steel Hex-Drive Shoulder Screws

Our strongest standard-fit shoulder screws

Made-to-Order Stainless Steel Hex-Drive Shoulder Screws

Made-to-Order Stainless Steel Hex-Drive Shoulder Screws

Specify the exact shoulder length you need in screws that won't rust

Same-Size Thread Stainless Steel Hex-Drive Shoulder Screws

Same-Size Thread Stainless Steel Hex-Drive Shoulder Screws

Harness superior holding power with screws that also won't rust

Steel Low-Profile Hex-Drive Shoulder Screws

Fit into shallow holes and in low-clearance areas around moving parts

Thread-Locking Stainless Steel Hex-Drive Shoulder Screws

Thread-Locking Stainless Steel Hex-Drive Shoulder Screws

Immune to mild vibration and also won't rust

Stainless Steel Flat Head Hex-Drive Shoulder Screws

Stainless Steel Flat Head Hex-Drive Shoulder Screws

Create a smooth surface with screws that sit flush or just below it

Internally-Threaded Stainless Steel Hex-Drive Shoulders for Bolts

Internally-Threaded Stainless Steel Hex-Drive Shoulders for Bolts

Fasten to an untapped hole or create a custom thread length

Stainless Steel Hex-Drive Shoulder Screw Assortments

Stainless Steel Hex-Drive Shoulder Screw Assortments

Keep different sizes of shoulder screws that won't rust on hand

Steel Ultra-Low-Profile Hex-Drive Shoulder Screws

The lowest-profile steel shoulder screws we offer

Aluminum Hex-Drive Shoulder Screws

Aluminum Hex-Drive Shoulder Screws

One-third the weight of steel for applications with weight limitations

Plastic Hex-Drive Shoulder Screws

Plastic Hex-Drive Shoulder Screws

Lightweight screws that are naturally rust resistant

Thread-Locking Steel Hex-Drive Shoulder Screws

Thread-Locking Steel Hex-Drive Shoulder Screws

Immune to vibration and also fit for high-strength fastening

Same-Size Thread Steel Hex-Drive Shoulder Screws

Same-Size Thread Steel Hex-Drive Shoulder Screws

Harness superior holding power with screws that also won't break

Made-to-Order Same-Size Thread Stainless Steel Hex-Drive Shoulder Screws

Made-to-Order Same-Size Thread Stainless Steel Hex-Drive Shoulder Screws

Harness superior holding power with custom-shoulder-length screws that also won't rust

Left-Hand-Thread Stainless Steel Hex-Drive Shoulder Screws

Left-Hand-Thread Stainless Steel Hex-Drive Shoulder Screws

Tighten to the left to prevent loosening from counterclockwise motion

Dual Hex-Drive Stainless Steel Shoulder Screws

Dual Hex-Drive Stainless Steel Shoulder Screws

Install or remove from either end in recessed spaces or blind holes

Nickel Hex-Drive Shoulder Screws

Nickel Hex-Drive Shoulder Screws

The most corrosion-resistant standard-fit screws we offer

Titanium Hex-Drive Shoulder Screws

Titanium Hex-Drive Shoulder Screws

Lightweight like aluminum and corrosion resistant like 316 stainless steel

Steel Hex-Drive Shoulder Screw Assortments

Steel Hex-Drive Shoulder Screw Assortments

Keep different sizes of our strongest shoulder screws on hand

Precise Shoulder Fit

Stainless Steel Hex-Drive Precision Shoulder Screws

Stainless Steel Hex-Drive Precision Shoulder Screws

Our go-to choice for assemblies that require smooth, accurate movement

Steel Low-Profile Slotted Precision Shoulder Screws

Fit into shallow holes and low-clearance spaces when both precision and strength are important

Stainless Steel Low-Profile Slotted Precision Shoulder Screws

Fit slotted screws into tight spaces in corrosive environments

Stainless Steel Low-Profile Hex-Drive Precision Shoulder Screws

Fit into tight spaces in corrosive environments

Stainless Steel Ultra-Low-Profile Hex-Drive Precision Shoulder Screws

Fit into the tightest spaces in corrosive environments

Stainless Steel Slotted Precision Shoulder Screws

Stainless Steel Slotted Precision Shoulder Screws

Use these slotted screws in assemblies that require smooth, accurate movement

Thread-Locking Stainless Steel Hex-Drive Precision Shoulder Screws

Thread-Locking Stainless Steel Hex-Drive Precision Shoulder Screws

Immune to mild vibration and also won't rust

Steel Hex-Drive Precision Shoulder Screws

Steel Hex-Drive Precision Shoulder Screws

Facilitate smooth and accurate movement with our strongest precision screws

Brass Hex-Drive Precision Shoulder Screws

Brass Hex-Drive Precision Shoulder Screws

Nonsparking, nonmagnetic, and won't rust

Steel Headless Slotted Precision Shoulder Screws

Steel Headless Slotted Precision Shoulder Screws

Flush mount in counterbored holes or use as pins for aligning parts

Thread-Locking Stainless Steel Slotted Precision Shoulder Screws

Thread-Locking Stainless Steel Slotted Precision Shoulder Screws

These slotted screws are immune to mild vibration and won't rust

Stainless Steel Ultra-Low-Profile Slotted Precision Shoulder Screws

Fit slotted screws into the tightest spaces in corrosive environments

Other Products

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

Flat Head Screws

Flat Head Screws

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

Drill Bushing Lock Screws

Drill Bushing Lock Screws

Prevent drill bushings from spinning

Wood Screws

Fasten material to wood or pieces of wood to each other

Clamp-On Framing Fasteners

Clamp-On Framing Fasteners

Tighten to hold clamp-on framing in place

Electrical Enclosure Fasteners

Electrical Enclosure Fasteners

Mount components to your enclosure without worrying about leaks

Toilet Seat Fasteners

Toilet Seat Fasteners

Secure toilet seat hinges to your toilet bowl

Tapping Screws

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

Oval Head Screws

Oval Head Screws

The domed top sits slightly above the surface of countersunk holes for a decorative look

Drywall Screws

Fasten panels of drywall to materials such as wood, metal, and drywall

Concrete Screws

Concrete Screws

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

Fastener Assortments

Fastener Assortments

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

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