Knurled Head Thumb Bolts | McMaster-Carr

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Grade 2 Titanium

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20,000 psi to 59,999 psi

60,000 psi to 79,999 psi

80,000 psi to 99,999 psi

100,000 psi or greater

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6,685 Products

Thumb Screws

Stainless Steel Flared-Collar Knurled-Head Thumb Screws

Stainless Steel Flared-Collar Knurled-Head Thumb Screws

The decorative collar leaves extra room to grip in wet and corrosive environments

Stainless Steel Raised-Profile Knurled-Head Thumb Screws

Corrosion-resistant, with a raised head you can grasp with oily fingers

Stainless Steel Knurled-Head Thumb Screws

Stainless Steel Knurled-Head Thumb Screws

Fasten panels and covers in wet and corrosive environments

Steel Raised-Profile Knurled-Head Thumb Screws

Grasp tightly even with oily fingers

Plastic-Knurled-Head Thumb Screws

Plastic-Knurled-Head Thumb Screws

The strength of stainless steel with a lightweight head that won't rust

Brass Flared-Collar Knurled-Head Thumb Screws

Brass Flared-Collar Knurled-Head Thumb Screws

Shiny and rust-resistant, with a decorative collar for added space to grasp

Stainless Steel High-Profile Knurled-Head Thumb Screws

Twice as tall as low-profile thumb screws for added leverage in wet areas

Steel Knurled-Head Thumb Screws

Steel Knurled-Head Thumb Screws

Fasten panels and covers by hand

Stainless Steel Extended-Tip Thumb Screws

Stainless Steel Extended-Tip Thumb Screws

The dowel-like tip guides the corrosion-resistant screw into holes with greater control

Aluminum Flared-Collar Knurled-Head Thumb Screws

Aluminum Flared-Collar Knurled-Head Thumb Screws

Our most lightweight flared-collar thumb screws, these are one-third the weight of steel

Stainless Steel Narrow-Profile Knurled-Head Thumb Screws

The slim head won't snag plugs and cords in electrical panels

Brass Knurled-Head Thumb Screws

Brass Knurled-Head Thumb Screws

Fasten plates and covers on electrical equipment

Brass Raised-Profile Knurled-Head Thumb Screws

Grasp this shiny screw tightly even if you have oily fingers

Steel Extended-Tip Thumb Screws

Steel Extended-Tip Thumb Screws

The dowel-like tip guides the screw into holes with greater control

Plastic Raised-Profile Knurled-Head Thumb Screws

A lightweight, economical alternative to metal raised-profile thumb screws

Slotted Stainless Steel Knurled-Head Thumb Screws

Slotted Stainless Steel Knurled-Head Thumb Screws

Fasten these corrosion-resistant thumb screws by driver and by hand

Hex-Drive Plastic-Head Thumb Screws

Hex-Drive Plastic-Head Thumb Screws

Twist with a hex key when you need more torque than fingers can provide

Steel High-Profile Knurled-Head Thumb Screws

Twice as tall as regular thumb screws for added leverage

Slotted Plastic High-Profile Knurled-Head Thumb Screws

Nonconductive, rust-resistant, lightweight, and can twist by driver and by hand

Plastic Thumb Screws

Plastic Thumb Screws

A lightweight, economical alternative to metal thumb screws

Slotted Stainless Steel Narrow-Profile Knurled-Head Thumb Screws

Fasten by driver and by hand in wet areas where you need to avoid snagging cords

Self-Aligning Swivel-Tip Thumb Screws

Self-Aligning Swivel-Tip Thumb Screws

The narrow tip fits through threaded holes and pivots to secure angled or uneven surfaces

Precision-Adjust Ball-Tip Thumb Screws

Precision-Adjust Ball-Tip Thumb Screws

Make the finest adjustments of any thumb screws we sell

Other Products

Knobs

Position, tighten, and secure fixtures and equipment

Shoulder Screws

Shoulder Screws

Rotate parts around the cylinder under the head to guide and align them during installation

Easy to tighten and loosen by hand for making frequent adjustments

Captive Panel Screws

Captive Panel Screws

Secure panels and enclosures while still having access to them

Push-Button Nuts

Push-Button Nuts

Disengage the threads to quickly slide along threaded rods

Indicating Knobs

Indicating Knobs

Control devices and view settings at a glance

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