Self-Drilling Screw - Hex Washer Head - Zinc Plated Steel - 1/4"-20 Thread - 1-1/4" Long - #4 Drill Point - Pack of 1000
Mfr. Model # 1420KWMS4
Self-drilling screws are efficient because they eliminate the need for a pilot hole, tap their own threads, and fasten materials in a single operation. The hex head washer has an external hex head with a washer-style flange attached underneath the head which creates a large surface connection area. Hex heads protrude above the surface. The externally driven head allows greater torque to be applied to the screw compared to other screws that are internally driven. The external hex drive is designed to be used with a ratchet. Zinc plated steel offers good corrosion resistance in applications not exposed to excessive moisture.
|Brand Part Number||1420KWMS4|
|Drive Style||External Hex|
|Head Diameter Tolerance||(-0.004" to +0.004")|
|Head Height Tolerance||(-0.009" to +0.009")|
|Point Type||#4 Drill Point|
|Specifications Met||ASME B18.6.3, SAE J78|
|System of Measurement||Inch|
|Thread Direction||Right Hand|
$304.35 / pack of 1000
This item is temporarily unavailable.