Two-Arm Knobs | McMaster-Carr

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Grip Style

Thumb Screw Head Shape

System of Measurement

Thread Size

Mount Type

Threaded Through Hole

Unthreaded Hole

Unthreaded Through Hole

Screw Size

Material

Stainless Steel

Stud Length

Head Width

Color

Hub Height

Length

Head Height

Stud Material

Stainless Steel

Number of Pieces

For Screw Head Type

Hub Diameter

Insert Material

Fastener Head Type

REACH

Thread Direction

Maximum Temperature

Less than 150° F

150° F to 199° F

225° F to 249° F

250° F or greater

Cap Color

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

DFARS Specialty Metals

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140 Products

Knobs

Threaded-Stud Knobs

Threaded-Stud Knobs

Mount these knobs into a threaded hole

Threaded-Hole Knobs

Threaded-Hole Knobs

Install on a threaded stud to provide a secure grip

Screw-Head Mount Knob Assortments

Screw-Head Mount Knob Assortments

Keep a convenient selection of knobs on hand

Vibration-Resistant Threaded Through-Hole Knobs

Vibration-Resistant Threaded Through-Hole Knobs

A nylon insert grips threads to resist loosening

Screw-Head Mount Knobs

Screw-Head Mount Knobs

To build a custom knob or thumb screw, pair with a hex or socket head screw

Threaded Through-Hole Knobs

Threaded Through-Hole Knobs

Long shafts can thread through these knobs for mounting versatility

Other Products

Indicating Knobs

Indicating Knobs

Control devices and view settings at a glance

Pull Handles

Use a handle to open and close cabinets, drawers, and doors

Tighten and loosen by hand without the need for tools

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)