ASTM Set Bolts | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Thread Type Thread Type

	Length Length

	Tip Type Tip Type


Cup	Flat

Cone	Extended

Soft	Oval

	Head Type Head Type


Headless	Square

	Drive Style Drive Style


Hex	External Square

	Drive Size Drive Size

	Finish Finish

Black Oxide

Zinc Plated

	Thread Spacing Thread Spacing

Coarse

Fine

	Specifications Met Specifications Met

ASTM

ASME

	Hardness Hardness

Rockwell C28

Rockwell C45

	Thread Fit Thread Fit

Class 2A

Class 3A

Class 5g6g

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

DFARS Specialty Metals
Compliant

	Tip Diameter Tip Diameter

	Tip Length Tip Length

	Cone Point Angle Cone Point Angle

90°

118°

	Thread Locker Type Thread Locker Type

Nylon Patch

Nylon Pellet

	Tip Material Tip Material

Brass

Plastic

	Thread Pitch Thread Pitch

	Minimum Thread Locker Temperature Minimum Thread Locker Temperature

-70° F

-50° F

Not Rated

	Head Width Head Width

	Head Height Head Height

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About Set Screws

Cup-Point Set Screws

Install with a hex key.

Locking Cup-Point Set Screws

Designed with a locking element to resist loosening.

Nonmarring Set Screws

Make frequent adjustments with minimal surface damage. Choose from flat-, oval-, and soft-tip set screws.

High-Hold Cone-Point Set Screws

For a secure hold on soft materials such as brass, the pointed tip wedges into the contact surface.

Extended-Tip Set Screws

Also known as dog-point set screws, these set screws have a protruding tip that locks within a mating hole or slot to keep parts aligned.