ST Fastening 1/4 x 7/8" Self-Drilling HWH Stitch Steelbinder Metal Screw, Hex Head - Electro-Galvanized, Qty. 250 Stainless Steel Tapcons Includes (8) 1/4" x 1-1/2"

Includes (8) 1/4" x 1-1/2" Strong-Drive SDS Heavy-Duty Connector screws

The ZMAX coating provides added protection against corrosion

The versatile GW consists of a 1/2" dome washer and a pin of 1/2"

then drive pin until flush with top of head

designed specifically for steel-to-steel connections in light-gauge metal framing

ST Fastening 1/4 x 7/8" Self-Drilling HWH Stitch Steelbinder Metal Screw, Hex Head - Electro-Galvanized, Qty. 250 Stainless Steel Tapcons Includes (8) 1/4" x 1-1/2"1 4 14 x 7 8" Stitch HWH Steelbinder self drilling pole barn screws are designed for general metal to metal construction applications. This includes HVAC, roof deck to steel framing, and roof clips to steel framing. Stitch screws, also called "lap screws" are a type of self drilling screw used to "stitch" together metal panels where they overlap. The Drill Point is designed to penetrate a wide variety of metal thicknesses from thin sheet metal to 0.