McMaster-Carr

Search Results

Clear All

	Screw Features Screw Features	Show

Sealing

	Screw Features Screw Features	Hide

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Length Length

	Drive Style Drive Style


Phillips	Hex	External Hex

	Material Material

18-8 Stainless Steel

316 Stainless Steel

	Finish Finish

Passivated

	Head Type Head Type


Rounded	Flat

Socket	Hex

	Rounded Head Style Rounded Head Style

	Pan

	Threading Threading

	Fully Threaded
	Partially Threaded

	Head Diameter Head Diameter

	Head Height Head Height

	Flat Head Profile Flat Head Profile


Standard	Undercut

	Thread Direction Thread Direction

	Right Hand

	Thread Type Thread Type

UNC

UNF

Metric

	Thread Pitch Thread Pitch

	Socket Head Profile Socket Head Profile

	Standard

	Drive Size Drive Size

	Tensile Strength Tensile Strength

60,000 to 79,999 psi

80,000 to 99,999 psi

100,000 psi or greater

	Thread Spacing Thread Spacing

Coarse

Fine

	Rounded Head Profile Rounded Head Profile

Standard

	Countersink Angle Countersink Angle

82°

90°

100°

	Specifications Met Specifications Met

ASME

DIN

FDA

ISO

Mil. Spec.

NAS

View catalog pages (6)

Forward

How can we improve?

383 Products

About Rounded Head Screws

Sealing Pan Head Screws

A rubber O-ring prevents leaks and seals out contaminants. Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic.

Metric Sealing Pan Head Screws

These metric screws have a silicone O-ring that prevents leaks and seals out contaminants. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.

Vibration-Resistant Sealing
Rounded Head Screws

A nylon patch bonded to the threads adds friction to resist loosening from vibration.

Sealing Flat Head Screws

With a silicone O-ring under the head, these screws prevent leaks and seal out contaminants.

Metric Sealing Flat Head Screws

To prevent leaks and seal out contaminants, these metric screws have a silicone O-ring under the head.

Sealing Socket Head Screws

Seal out contaminants and prevent leaks—a silicone O-ring under the head creates a water-, oil-, and chemical-resistant seal.

Sealing Hex Head Screws

An O-ring under the head prevents leaks and seals out contaminants.

Sanitary Hex Head Screws

Bolt down equipment in food processing or sanitary areas while sealing out contaminants.

Terms and Conditions and Privacy Policy