Powers Fasteners- 2724SD Tapper Hex 1/4" X 2-14" Screw

Concrete Anchor Screw, PK100 Item: Concrete Anchor Screw, Type: Self Threading, Head Style: Hex Washer, Material: Carbon Steel, Anchor Dia.: 1/4", Length: 2-1/4", Drill Bit Size: 3/16", Application: Window Installations, Interior Hand Rails, Wood to Concrete, Storm Shudders, Package Quantity: 100

VIEW PRODUCT SPECS

http://www.powers.com/pdfs/mechanical/tapperplus.pdf