brick or stone

1/2-13 x 3 1/2 Hex Cap Screw SS 316 (A4)

3/4-16 x 5 Grade 8 Hex Cap Screw Yellow Zinc Plated

3/4-10 x 5 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated

1/4 x 3 Mushroom Spike Zinc Plated (100)

8-18 x 3 Strong-Point Phillips Bugle Head Self Drilling Drywall Screw Zinc Plated (2000) 3/4-10 Grade 5 Hex Cap Screws Zinc Plated brick or stone8 18 x 3 Phillips Drywall Self Drill Screw Zinc Plated (2000) . Used for many purposes, including the attachment of gypsum board to metal studs, fine threads and the self drilling tip make these screws ideal for penetrating and holding into metal framing studs and other types of metal or aluminum framing.