Dewamarket 1/4-20 x 1 1/2 Coarse Thread Self Drilling Screw Hex Washer 7/16 AF Head with Serration Low Carbon Steel Zinc Plated

Part #: 0000-209841. Buy as few as 1250 pcs. Discounts on larger quantities. PRODUCT SPECIFICATIONS Part #: 0000-209841 Fastener Type: Self Drilling Screw Hex Washer 7/16 AF Head with Serration Size Description: 1/4-20 x 1 1/2 Diameter/Nominal Size: 1/4 Length: 1 1/2 Wrench Size/Across Flats: 0.428-0.438″ Head Height: 0.172-0.190″ Flange Diameter: 0.322-0.348″ Flange Thickness: 0.024-0.036″ Point Length: 0.275″ Thread Pitch: 20 Thread Pitch Type: Coarse Thread Direction: Right Thread Coverage: Full System of Measurement: Inch Material: Low Carbon Steel Finish: Zinc Plated Head Type: Hex Washer with Serration Drive Type: External Hex Average Piece Weight: 0.0231670 lbs. Self-Drilling Screws (sometimes incorrectly referred to as self-tapping screws) enable drilling without first creating a pilot hole. Self-drilling screws or (SDS’s) are usually used to join materials like sheet metal to other materials, such as metal or wood.