A unique thread design and quality controlled manufacture spell the Zip-in® sheet metal screw difference

Zip-in's® are made with a sophisticated heat treat process which allows the screw to taper to a fine, sharp point without sacrificing critical point strength

A single starting thread is formed down to the very tip of the point and is the source of Zip-in's® penetrating power

A second thread above the point engages after initial penetration and drills in the screw double fast

Malco's Zip-in® screws are faster driving, with a greater capacity for fastening heavier gauges of sheet metal than any other Self-piercing type

Undercut-Indented Hex Washer Slotted Head - Undercut Always seats flush

Burr Free hex washer slotted head - One 1/4 inch hex driver accommodates all sizes of Zip-in Screws

Full 1/4 inch (No. 8) head will not strip out of hex driver opening at any-time during operation

Combination Lead Double Thread - Starting thread machined down to very tip of screw point

Instantly penetrates and engages in heavy gauge

Sheet metal and layered light gauge

Sharp Tapered Point - Quality controlled heat treat

Sharp tapered point will not mushroom, break or walk

Complete operator control with precise hole alignment

Limited Lifetime Warranty

Bit Tip Produces the Optimum Hole Size Resulting in Better Thread Engagement and a Tighter Fit

Made from Strong High Quality and Tapping Screws are Cold Forged Insuring Uniformity of Dimension and Drill Point Contour

Eliminates the Need for Costly Auxiliary Fastening Equipment Such as Drill Bits and Welding Equipment's

Lifetime Limited Warranty

Undercut-indented hex washer slotted head

Bright Zinc Plated

Burr Free

Full 1/4"(no 8) head will not strip out of hex driver opening

One 1/4" hex driver accommodates all sizes

Undercut - always seats flush

Some screws sizes available in pails

Single starting thread machined down to very tip of screw point

Instantly penetrates and engages in heavy gauge sheet metal and layered light gauge

Quality controlled heat treat

Sharp tapered point will not mushroom or break

No walking

Lifetime Limited Warranty

Patent Pending, Quick Release Check Valve

Field Serviceable Duck Bill Check Valve

Rubber Isolation Feet

Drip proof Housing Design

Solid Float

Integrated Safety Switch 250 Volt and Float Switch

ABS and Stainless Steel Construction

Drip proof housing

Class leading performance

Designed to Out Perform the Competition

While Providing Quiet Operation and Reliability

Clean/Quick Release "Duck Bill" Check Valve

Rubber Isolation Foot

Quiet Operation and Reliable

Clean/Quick Release Check Valve

Whisper Quiet

Quickly Dissolves the Most Stubborn Soil Residues, Greases and Dirt by Chemical Action

Can be Used in a No-Rinse Application

Will Not Corrode or Tarnish Aluminum or Other Metals

Biodegradable