5/16-18 x 1-1/2 Elco Dril-Flex / Hex Washer Head / Steel / Stalgard / QTY 1000 8-15X2 1/4 Square Drive Trim

8-15X2 1/4 Square Drive Trim Head Drywall Screw Fine Thread Black Phosphate

Provides excellent shear values for overhead attachments

ductility and reliability

6-18X1 3/8 Phillips Bugle Head Fine Thread Drywall Screw Black Phosphate

Brand part # DFM12706

5/16-18 x 1-1/2 Elco Dril-Flex / Hex Washer Head / Steel / Stalgard / QTY 1000 8-15X2 1/4 Square Drive TrimDril Flex Structural Screws are dual heat treated self drilling tapping screws that provide the strength, ductility and resistance to embrittlement required for critical applications. Features & Specs High hardness point and lead threads for drilling and tapping Stalgard and Stalgard SUB Coatings provide improved corrosion resistance as well as enhanced galvanic compatibility in dissimilar metal applications, including those involving aluminum,