Teks #14 2-1/2 in. External Hex Flange Hex-Head Self-Drilling Screws (30-per Pack)

Teks #14 x 2-1/2 in. Zinc-Plated Steel Hex-Head Phillips Self-Drilling Lath Screws (30 per Pack) are great for use in HVAC and electrical applications. These screws tap their own threads and do not require predrilling. Engineered drill point and flute (pilot section). Install with a standard screw gun and a 3/8 in. hex drive bit (installation materials are not included).|Provides secure metal to metal fastening without the need to pre-drill and reduces cam-outs for high performance drive surfaces and recess|Precise point designed to drill, tap and fasten all in 1 motion|High performance drive surfaces reduce cam-outs to penetrate surface the first time for easy installation|Zinc plated finish protects the job's appearance|No tool slippage even with older sockets and worn bits|No pre-drilling is necessary|Highly versatile|Common project applications: roofing, HVAC, steel stud framing, gutters and register vents