Self-Drilling Screw, #12 x 1-1/4 in, Zinc Plated Steel Flange Hex Head External Hex Drive, 100 PK

The ZORO SELECT - U31810.021.0125 is a self-drilling screw, intended for use in materials, potentially eliminating the need for pre-drilled holes. This fastener is primarily used in industrial and commercial settings for tasks such as metal fabrication, construction, and assembly. Made from steel with a zinc-plated finish which may contribute to its durability and corrosion resistance.

• Application: Intended for use in steel-to-steel applications. The level of security in fastening depends on application specifics.
• CAD Available: A Computer-Aided Design (CAD) file is available for accurate incorporation into digital project plans.
• Drive & Size: Requires an external hex tool with a drive size of 5/16 inch for installation or removal.
• Fastener Length: Measures 1-1/4 inches in length which determines how deeply it can penetrate and secure materials together.
• Head Type & Dimensions: Features a flange hex head type with dimensions ranging from 0.305 to 0.312 inches in diameter ensuring proper load distribution when fully inserted.
• Maximum Drilling Thickness: Has been used to penetrate material up to 0.187 inches thick without a pre-drilled hole in some instances.
• Screw Size & Thread Style: Features a #12 screw size with fully threaded style; thread coverage may vary based on application requirements