Small Parts 141607KWSMS Steel Self-Drilling Screw, Zinc Plated Finish, Serrated Hex Washer Head, Hex Drive, #2 Drill Point, 1/4″-20 Thread Size, 1″ Length (Pack of 50)

Price: $7.98 - $7.00
(as of Oct 15, 2025 01:11:06 UTC – Details)


The steel self-drilling screw with zinc plating has a serrated hex washer head and a hex drive. Steel is often used in applications where strength is the primary consideration. The zinc plating offers corrosion resistance and has a reflective appearance. The hex washer head has six flat sides that a wrench can grip to turn from the side, enabling use when there is no space above the head for a screwdriver. The serrated flange acts like a washer to increase the fastener’s bearing surface and distribute the clamping force over a larger area, providing a grip that resists loosening.
Self-drilling screws, a type of self-tapping screw, are threaded fasteners that drill their own hole and thread it as they are installed. Usually only recommended for use with metal, self-drilling screws are available with wings that enable use when fastening wood to metal. The drill point length should be long enough to penetrate both materials being fastened before the threading portion reaches the material.
Item model number ‏ : ‎ 141607KWSMS
Date First Available ‏ : ‎ January 1, 2014
Manufacturer ‏ : ‎ Small Parts
ASIN ‏ : ‎ B00GYJ7OXW
Best Sellers Rank: #35,274 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #127 in Self-Tapping Screws
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Steel is often used in applications where strength is the primary consideration
Zinc plating resists corrosion and has a reflective appearance
Hex washer head has a serrated flange for additional grip on the mating surface that resists loosening
Hex drive tightens from the side with a wrench, enabling use when there is no space above for a driver