McMaster-Carr

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	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

0000-160
000-120
00-90
00-96
0-80
1-64
1-72
2-56
2-64
3-48
4-40
4-48
5-40
6-32
8-32
10-24
10-32
12-24
1/4"-20
1/4"-28
5/16"-18
3/8"-16
1/2"-13
M0.5
M0.8
M0.9
M1
M1.2
M1.4
M1.6
M2
M2.5
M2.6
M3
M3.5
M4
M5
M6
M8
M10
M12

	Thread Type Thread Type

	Material Material

	Drive Style Drive Style


Slotted	Phillips

External Hex	Hex

	Length Length

	Head Type Head Type


Rounded	Flat

Oval	Hex

Socket

	Rounded Head Style Rounded Head Style


Round	Pan

Truss	Binding

Cheese	Fillister

	Head Diameter Head Diameter

	Threading Threading

	Fully Threaded
	Partially Threaded

	Head Height Head Height

	Thread Spacing Thread Spacing

Coarse

Fine

	Thread Fit Thread Fit

	Tensile Strength Tensile Strength

	Hardness Hardness

	Specifications Met Specifications Met

ASME

DIN

Fed. Spec.

ISO

Mil. Spec.

NAS

	Finish Finish

	Rounded Head Profile Rounded Head Profile

	Flat Head Profile Flat Head Profile


Standard	Undercut

	Color Color

	Off-White		Black
	White		Clear
	Beige		Brown

	Countersink Angle Countersink Angle

82°

90°

100°

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

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About Rounded Head Screws

Rounded Head Screws

A domed head sits above the surface of your material. Includes screws such as pan, button, binding, and truss head screws.

Flat Head Screws

Flat and oval head screws are angled under the head to fit in countersunk holes.

Hex Head Screws

Hex head screws are easy to install with a wrench for a secure hold. Use them with a nut or in tapped holes.

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About Rounded Head Screws

Fasteners

Rounded Head Screws

Flat Head Screws

Hex Head Screws

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