Lock Washer Screws | McMaster-Carr

Filter by

Screw Features

Locking Type

System of Measurement

Thread Size

Length

Drive Style

Material

Stainless Steel

Washer Type

Rounded Head Style

Fastener Head Type

Washer Material

Stainless Steel

Finish

Threading

Tooth Location

Head Diameter

Washer OD

Washer Thickness

Thread Type

Thread Pitch

Thread Direction

RoHS

REACH

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Export Control Classification Number (ECCN)

DFARS Specialty Metals

How can we improve?

582 Products

Rounded Head Screws

Stainless Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer

Stainless Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer

Sharp internal washer teeth keep corrosion-resistant screws in place during vibration

Steel Pan Head Phillips Screws with External-Tooth Lock Washer

Steel Pan Head Phillips Screws with External-Tooth Lock Washer

External teeth provide a stronger grip than internal-tooth lock washers during frequent vibration

Stainless Steel Pan Head Phillips Screws with Spring Lock Washer

Stainless Steel Pan Head Phillips Screws with Spring Lock Washer

A spring lock washer holds corrosion-resistant screws better than tooth-lock washers during vibration

Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer

Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer

Sharp internal teeth hold screws in place despite frequent movement and vibration

Stainless Steel Pan Head Phillips Screws with External-Tooth Lock Washer

Stainless Steel Pan Head Phillips Screws with External-Tooth Lock Washer

External washer teeth grip corrosion-resistant screws better than internal teeth during vibration

Stainless Steel Pan Head Phillips Screws with Flat and Split Lock Washer

Stainless Steel Pan Head Phillips Screws with Flat and Split Lock Washer

Stop screws from coming loose due to light vibration while protecting your surface from damage

Steel Pan Head Phillips Screws with Split Lock Washer

Steel Pan Head Phillips Screws with Split Lock Washer

Stop screws from loosening due to light vibration

Steel Pan Head Phillips Screws with Spring Lock Washer

Steel Pan Head Phillips Screws with Spring Lock Washer

Grip tighter for better vibration resistance than tooth-lock washers

Stainless Steel Pan Head Phillips Screws with Split Lock Washer

Stainless Steel Pan Head Phillips Screws with Split Lock Washer

Stop screws from loosening due to light vibration when fastening in corrosive environments

Other Products

Hex Head Screws

Hex Head Screws

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

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