Malco Products, SBC got its start in 1950 when a young steel supply salesman, Mark W. Keymer, decided to manufacture and market a pipe crimper he had invented for use in installing the “new” sheet metal ductwork used with forced air heating systems. More tools soon followed, including the first hand seamer to employ compound leverage, a time saving hand notcher that made a V-shaped cut in one motion and a hand operated, snap lock punch to complete the basic sheet metal tool set.
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Brand Name
Malco
Length
1/2 in.
Finish
Zinc-Plated
Product Type
Sheet Metal Screws
Material
Metal
Self Drilling
Yes
Thread Type
Tapping
Color
White
Point Type
Self-Piercing
Indoor or Outdoor
Indoor
Packaging Type
Bagged
Drive Style
Slotted
Head Type
Hex Washer Head
Callout Size
No 7 Sizes
Number in Package
100 pk
Weight (lb)
0.3
Length (in.)
0.5
Width (in.)
4.5
Height (in.)
6
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