Brass is an alloy of primarily copper and zinc. It is surprisingly strong but a very soft metal. And it is highly corrosion resistant and electric conductor.

Standards:

ANSI, BS, DIN, JIS, etc

Specifications:
Head Type: Flat head, Oval head, Round head, Hex head

Drive Type: Phillips, Square, Slotted, Phillips/Slotted, Torx, Pozi, Hexagon
Diameter: #2 - #16
Length: 1/4" - 6"

Features:
Material: Brass
Surface finish: Self colour, Pickling

Inner packing:

Ploybag or as customers' requests

Outer packing: