Insulation Screws | McMaster-Carr

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Aluminum Oxide Ceramic

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Partially Threaded

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Less than 150° F

150° F to 199° F

200° F to 249° F

250° F to 499° F

500° F or greater

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Metric Class 6g

Metric Class 6h

Unified Standard Class 2A

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1,984 Products

Fastening and Joining

Rounded Head Screws

Rounded Head Screws

Sit just above the surface for a low-profile finish and hold tighter than flat head screws

Socket Head Screws

Socket Head Screws

With a deeper drive than flat and rounded head screws, these withstand more torque for a tighter hold

Hex Head Screws

Hex Head Screws

Used with nuts to create a stronger joint than flat and rounded screws

Flat Head Screws

Flat Head Screws

Fit in countersunk holes for a flush finish

Tighten and loosen by hand without the need for tools

Set Screws

Exert pressure at the tip to hold parts in place, unlike screws that hold material together with threads

Shoulder Screws

Shoulder Screws

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

Binding Barrels and Screws

Binding Barrels and Screws

Thread together for a low-profile fastener

Facility and Grounds Maintenance

Toilet Seat Fasteners

Toilet Seat Fasteners

Secure toilet seat hinges to your toilet bowl

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