steel zinc 7 16 af 3 4 pt unslotted hex washer serrated self drilling screws

Serrated hex washer head self-drilling screws with a 7/16-inch across-flats head and #3 & #4 drill point combine vibration resistance with the drilling capacity for medium-gauge steel. Blue Ribbon Fastener stocks these zinc-plated self-drilling screws in standard sizes.

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Usages for Hex Washer, Serrated Unslotted, Steel Zinc, 7/16 AF, #3 & #4 Pt.

These screws are used in metal-to-metal connections requiring both a hardened drill point for thicker steel and a serrated washer face to resist loosening under vibration, common in heavier equipment panel assembly.

7/16 AF Serrated Self-Drilling Screws for all Industries

Equipment manufacturing and heavier metal fabrication specify serrated hex washer self-drilling screws with a larger drill point for medium-gauge steel connections. Blue Ribbon Fastener supplies consistent stock.

Features for Engineers & Buyers:

Serrated washer face bites into the material for vibration resistance
7/16-inch across-flats head for added wrenching surface
#3 & #4 drill point for medium-gauge steel
Zinc-plated steel construction
Unslotted head for consistent power-driven installation
Same-day shipping on in-stock sizes when ordered by 2:30 PM CST
Volume and repeat customer pricing available — call or request a quote