Size: 1 inch X 2-1/2 inch Outer DiameterMost commonly used and versatile washerIncreases bearing surface and distributes load over a larger areaCan be used to prevent a screw or bolt from going into a hole too farCan also be used as spacers by stacking more than oneSpecification(s) Met: ASME B18.They distribute the force from the bolt head & nut over a larger area which serves to protect the surface of the material you are working with..
When attaching metal to wood, it is especially important to pre-drill a hole..Size: #10 X 1-1/4 inchFlat Head, Phillips DriveUsed to attach sheet metal to other thin metal, wood or other materialSharp pointed tipPilot hole should be pre-drilledThread Type: Type A, Point Style: SharpSpecification(s) Met: ASME B18.
.Size: 3/8 inch-16 X 1-1/4 inchHex (Allen) DriveInstalls using an Allen wrenchCan be used in tight spaces where there may not be room for a socket tool or wrenchOften used in machinery, tools & diesThread Type: Coarse, Thread Class: UNC-3A, Point Style: BluntSpecification(s) Met: ASME B18.