Access Door Bolts | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Thread Type Thread Type

UNC

UNF

Metric

	Length Length

	Head Type Head Type


Thumb	Socket

Rounded

	Head Texture Head Texture


Knurled	Smooth

	Drive Style Drive Style


Hex	Phillips	Slotted

	Head Diameter Head Diameter

	Head Height Head Height

	Thread Length Thread Length

	Thread Spacing Thread Spacing

Coarse

Fine

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

RoHS Compliant

	Size Size

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

REACH Compliant

	Thread Fit Thread Fit

	Thread Pitch Thread Pitch

	Body Material Body Material

Aluminum

Stainless Steel

Steel

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	For Maximum Outer Panel Thickness For Maximum Outer Panel Thickness

	Shank Diameter Shank Diameter

	For Minimum Outer Panel Thickness For Minimum Outer Panel Thickness

	Screw Material Screw Material

400 Series Stainless Steel

430 Stainless Steel

	Head Material Head Material

300 Products

Captive Panel Screws

Socket Head Captive Panel Screws

Install these socket head screws through a hole and thread on a retainer to keep secure—no special tools are required.

Rounded Head Captive Panel Screws

Install these rounded head screws through a hole and thread on a retainer to keep secure—no special tools are required.

Thumb-Screw-Head Captive Panel Screws

Install these thumb-screw-head screws through a hole and thread on a retainer to keep secure—no special tools are required.

Press-Fit Captive Panel Screws

Install in soft material such as aluminum and low-carbon steel at least 0.036" thick with an arbor press or similar pressure tool.

Flare-In Captive Panel Screws

The base flares out during installation, creating a backside flange in hard materials and near edges in panels up to 0.312" thick. Install with a flare-in installation tool and an arbor press.

Snap-In Captive Panel Screws

Snap these screws into panels up to 0.125" thick—no tools are required for installation.