Hollow Screws | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Thread Type Thread Type

	Length Length

	Material Material

Stainless Steel

Steel

	Head Type Head Type


Headless	Socket

Hex	Flat

Rounded

	Size Size

	Drive Style Drive Style


Hex	External Hex

	Threading Threading

	Fully Threaded
	Threaded on Both Ends
	Partially Threaded

	Vent Diameter Vent Diameter

	Thread Spacing Thread Spacing

Coarse

Fine

	Hardness Hardness

	Thread Fit Thread Fit

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Minimum Thread Length Minimum Thread Length

	Thread Pitch Thread Pitch

	Tensile Strength Tensile Strength

70,000 psi

80,000 psi

Not Rated

	Head Height Head Height

	Head Diameter Head Diameter

	Hole Diameter Hole Diameter

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
Compliant

DFARS Specialty Metals
COTS-Exempt

	Specifications Met Specifications Met

371 Products

Screws and Bolts

Alloy Steel Hollow-Lock Set Screws

Also known as jam set screws, these lock other screws in place, hold pins, and adjust spring tension. A black-oxide finish provides corrosion resistance in dry environments.

Stainless Steel Hollow-Lock Set Screws

Stainless steel set screws have excellent corrosion resistance in most environments.

Vented Cup-Point Set Screws

These inch size set screws are vented to allow fluid and gas to pass through.

Metric Vented Cup-Point Set Screws

These metric set screws are vented to allow fluid and gas to pass through.

Vented Socket Head Screws

Drilled through the head and shaft, these screws vent fluid and gases trapped below the screw, making them good for vacuum applications.

High-Vacuum Cleaned-and-Bagged
Vented Socket Head Screws

Fasten these screws inside a high-vacuum system without bringing in contaminants.

Vented Hex Head Screws

Drilled through the head and shaft, these screws vent fluid and gases trapped below the screw, making them good for vacuum applications.

Wire-Lockable Retainers for Hex Head Screws and Nuts

Place one of these retainers around a hex head screw or nut, then attach wire to lock the screw or nut in place and keep it from loosening.

Vented Flat Head Screws

These screws are drilled through the shaft to vent fluids and gases trapped under the screw.

Metric Vented Flat Head Screws

To vent fluids and gases trapped under the screw, these metric screws are drilled through the shaft.

Vented Button Head Screws

These screws are drilled through the shaft to vent fluids and gases trapped under the screw. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.

Metric Vented Button Head Screws

To vent fluid and gas trapped under the screw, these metric screws are drilled through the shaft. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.

Hollow Threaded Studs

A hollow center allows these studs to be used as an axle, a vent, or a passageway for wiring.

Screws and Bolts

Alloy Steel Hollow-Lock Set Screws

Stainless Steel Hollow-Lock Set Screws

Vented Cup-Point Set Screws

Metric Vented Cup-Point Set Screws

Vented Socket Head Screws

High-Vacuum Cleaned-and-BaggedVented Socket Head Screws

Vented Hex Head Screws

Wire-Lockable Retainers for Hex Head Screws and Nuts

Vented Flat Head Screws

Metric Vented Flat Head Screws

Vented Button Head Screws

Metric Vented Button Head Screws

Hollow Threaded Studs

Hollow Threaded Studs

High-Vacuum Cleaned-and-Bagged
Vented Socket Head Screws