External 12 Point Plugs | McMaster-Carr

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	Material Material

Brass

Stainless Steel

	Drive Style Drive Style	Show

Phillips

	Drive Style Drive Style	Hide

Tamper-Resistant Torx

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

0-80
2-56
4-40
6-32
8-32
10-24
10-32
1/4"-20
1/4"-28
M2
M2.5
M3
M3.5
M4
M5
M6
M8

	Thread Type Thread Type

Metric

UNC

UNF

	Length Length

	Head Type Head Type


Rounded	Flat

	Head Diameter Head Diameter

	Head Height Head Height

	O-Ring Material O-Ring Material

Buna-N Rubber

Silicone Rubber

Fluoroelastomer Rubber

Viton® Fluoroelastomer
Rubber

Rubber

	Flat Head Profile Flat Head Profile


Undercut	Standard

	Screw Features Screw Features

	Sealing

	Threading Threading

	Fully Threaded

	Thread Direction Thread Direction

	Right Hand

	Countersink Angle Countersink Angle

82°

90°

100°

	Maximum O-Ring Temperature Maximum O- Ring Temperature

	Drive Size Drive Size

	Minimum O-Ring Temperature Minimum O-Ring Temperature

	For Maximum Hole Diameter For Maximum Hole Diameter

	Thread Fit Thread Fit

Class 2A

Class 6g

	Maximum Pressure Maximum Pressure

1,500 psi

6,000 psi

20,000 psi

	Tensile Strength Tensile Strength

70,000 psi

	Hardness Hardness

Rockwell B70

Not Rated

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About Flat 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 an 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 an O-ring under the head.

Sealing Blunt Screws for Sheet Metal

A rubber O-ring under the head creates a seal that withstands liquid and gas pressure.

Male Fabric Snap Halves
with Tapping Screw Stud

Pair with a female snap half to create a complete snap.

Fabric Snaps with Threaded Stud

The threaded stud installs in threaded holes.

Fabric Snaps with Drilling Screw Stud

The drilling screw stud drills its own hole.

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