Malco Tools HW7X1/2ZT Zip-in® Self Piercing Sheet Metal Screws, #7 x 1/2, 1000 Count M2006 Puncture resistant nylon sheath with

Puncture resistant nylon sheath with belt loop

and register temperatures

Optimized design of the tape housing decreases payout effort

Strong bonds that will endure the life of the fittings

Operating Temperature Range:  32°F to 125°F (0°C to 52°C)

Malco Tools HW7X1/2ZT Zip-in® Self Piercing Sheet Metal Screws, #7 x 1/2, 1000 Count M2006 Puncture resistant nylon sheath withMalco Tools HW7X1 2ZT Zip in Self Piercing Sheet Metal Screws, #7 x 1 2, 1000 Count Malcos Zip in Screws are known for their superior quality and is considered by many for being the best screw choice for HVAC metal duct fastening. A unique thread design and quality controlled manufacture spell the Zip in sheet metal screw difference. Zip ins are made with a sophisticated heat treat process which allows the screw to taper to a fine, sharp point without