Aluminium Machine Screws Sex Male Female Thread Slot Post Fasteners

The aluminium machine screws (or Chicago Screws) are traditionally used for binding photo albums, swatch books, and wine menus, but are also great for binding oversized documents like manuscripts or blueprints, design portfolios, and scrapbooks! Chicago Screw posts are perfect for almost any application where loose pages need to be kept together! Ever Hardware offers aluminum screw posts in SILVER, BLACK, GOLD, or ANTIQUE BRASS, and PLASTIC screw posts in either white or black. Ever Hardware provides custom-made aluminium machine screws and customizable packaging.

Aluminium is a relatively soft, durable, lightweight, ductile, and malleable metal with appearance ranging from silvery to dull gray, depending on the surface roughness. It is nonmagnetic and does not easily ignite. A fresh film of aluminum serves as a good reflector (approximately 92%) of visible light and an excellent reflector (as much as 98%) of medium and far-infrared radiation. The yield strength of pure aluminum is 7–11 Mpa, while aluminum alloys have yield strengths ranging from 200 Mpa to 600 Mpa. Aluminium has about one-third the density and stiffness of steel. It is easily machined, cast, drawn, and extruded.
Aluminium atoms are arranged in a face-centered cubic (fcc) structure. Aluminium has a stacking fault energy of approximately 200 mJ/m2.
Aluminum is a good thermal and electrical conductor, having 59% the conductivity of copper, both thermal and electrical while having only 30% of copper’s density. Aluminium is capable of superconductivity, with a superconducting critical temperature of 1.2 kelvin and a critical magnetic field of about 100 gausses (10 millie teslas).
Corrosion resistance can be excellent because a thin surface layer of aluminium oxide forms when the bare metal is exposed to air, effectively preventing further oxidation, in a process termed passivation. The strongest aluminium alloys are less corrosion resistant due to galvanic reactions with alloyed copper. This corrosion resistance is greatly reduced by aqueous salts, particularly in the presence of dissimilar metals.

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