Cylinder screws hexagon socket partial threaded ISO 4762-8.8 tempered black M12x120 mm

Article no.: 118179 Catalog no.: 116
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Product details

Technical Data

d1 M12
L 120 mm
Norm ISO 4762
Shank partial threaded
b 36 mm
Material Steel

Steel is an iron-carbon alloy with a maximum carbon content of 2% by mass. The steels achieve their intended physical and mechanical properties through various hardening, annealing and tempering processes. It is also possible to harden the edge zone by surface hardening, case hardening or nitriding. Well-known steel grades are structural steels, free-machining steels, case-hardening steels, nitriding steels, tempering steels, tool steels and stainless steels.

Surface tempered black

The tempering process of screws and nuts (heating - holding - quenching - tempering) results in a thin baked oxide layer, which is referred to as tempered black. This surface condition is not a surface coating and therefore offers no corrosion protection.

Head shape Cylinder head
s 10 mm
Thread type Metric standard thread
Norm DIN 912 (standard withdrawn)
t min 6 mm
Drive Hexagon socket

Compared with a Phillips-head screw of the same size, a hex socket screw can withstand around ten times the torque. Hex socket screws are well suited to bolted joints where the screw heads are difficult to access due to the design of the structure. Hex socket screws can be countersunk to save space if protruding screw heads are a problem.

Strength class 8.8

The number before the point multiplied by one hundred gives the nominal value of the tensile strength in N/mm2, the number before the point multiplied by the number after the point and multiplied by 10 gives the nominal value of the 0.2% yield strength in N/mm2. The number after the decimal point provides information about the yield strength, as a percentage of the tensile strength.

d2 18 mm
k 12 mm

Packaging units

1 Pack 50 Pieces

Identification & Classification

Article number 118179
Catalog number 116
EAN / GTIN 4043952166635
Article class OAA

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