6-48 Knobs | McMaster-Carr

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	System of Measurement System of Measurement

Inch

	Thread Size Thread Size	Show

6-48

	Thread Size Thread Size	Hide

	Thread Type Thread Type

UNS

	Length Length

1/2"

3/4"

	Thread Spacing Thread Spacing

Extra Fine

	Drive Style Drive Style

	Slotted

	Threading Threading

	Fully Threaded

	Thread Direction Thread Direction

	Right Hand

	Thread Fit Thread Fit

Class 2A

	Material Material

Stainless Steel

	Head Diameter Head Diameter

1/4"

	Round-Head Thumb Screw Profile Round-Head Thumb Screw Profile

	Narrow

	Thumb Screw Head Shape Thumb Screw Head Shape

	Round

	Head Height Head Height

1/2"

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

REACH Compliant

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

RoHS Compliant

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

DFARS Specialty Metals
Compliant

	Hardness Hardness

Rockwell B83

	Tensile Strength Tensile Strength

6 Products

About Thumb Screw and Binding Post Materials

Use these slim thumb screws in tight spaces. Made from 18-8 stainless steel, they're chemical resistant and may be mildly magnetic. The head is knurled for slip-resistant controlled adjustment. Length is measured from under the head.

For technical drawings and 3-D models, click on a part number.

		Head
Lg.	Threading	Dia.	Ht.	Tensile Strength, psi	Hardness		Each
18-8 Stainless Steel
6-48
1/2"	Fully Threaded	1/4"	1/2"	80,000	Rockwell B83	000000000	00000
3/4"	Fully Threaded	1/4"	1/2"	80,000	Rockwell B83	000000000	0000
1"	Fully Threaded	1/4"	1/2"	80,000	Rockwell B83	000000000	0000

Slotted Narrow Knurled-Head Thumb Screws

These thumb screws are slim to fit in tight spaces. Made from 18-8 stainless steel, they're chemical resistant and may be mildly magnetic. The head is knurled for slip-resistant controlled adjustment. Length is measured from under the head.

For technical drawings and 3-D models, click on a part number.

		Head
Lg.	Threading	Dia.	Ht.	Tensile Strength, psi	Hardness		Each
18-8 Stainless Steel
6-48
1/2"	Fully Threaded	1/4"	1/2"	80,000	Rockwell B83	000000000	000000
3/4"	Fully Threaded	1/4"	1/2"	80,000	Rockwell B83	000000000	00000
1"	Fully Threaded	1/4"	1/2"	80,000	Rockwell B83	000000000	00000