Our Products

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OUR PRODUCTS

In ACZ, we are able to produce a wide portfolio of products based not only on world-wide standards, but on customers drawings and specific demands as well.

Products overview

Bolts and screws made from carbon or alloy steel.

Sizes and lenghts (depending on the head shape)

Size M6 M8 M10 M12 M14 M16 UNF7/16
Lenght (in mm) 10 - 110 10 - 110 10 - 95 10 - 130 20 - 110 32 - 180 10 - 130
Pevnostní třídy

Od 4.8 do 11.9 (dle ISO 898-1)

Head shape examples

Hexagon bolts with flange, standard external hexagon bolts, bolts with countersunk or pan/binding head, projection weld bolts, shouldered bolts and other special shapes by using 4D & 4B cold forging machine



Surface treatments

Surface treatment Color Note
Zinc plating + chromate
(hexavalent chrome free)
Silver
Black
Thickness 5?m or 8?m
Dehydrogenation process available
GEOMET 720 Silver -
Friction coefficient
stabilizer
Red
Green
Target friction coefficient: 0.09+-30%
Target friction coefficient: 0.17+-36%
FORD surface coatings - WX100 - S300, S437, S439, S442, S450, etc.
VOLVO surface coatings - STD 121-0013, STD 121-0004
BMW surface coatings - GS 90010-1
Adhesive coating on thread - ThreeBond 2300, WA970 (Ford), STD7121-161 (Volvo)
Heat treatment

Continuous furnaces for quenching & tempering and stress relief annealing are available. Dephosphating process is available.

Patented fasteners

TORX, TORX PLUS, TAPTITE

Production capability list is available for download here