M12-1.75 x 180 mm Flat Head Socket Cap Screws / Class 12.9 / Alloy Steel / Black Oxide / Partial Thread
- Steel
- Class 12.9
- Black Oxide
- 1.75mm · Coarse
- DIN 7991
$216.11
$4.32 / pc
Bulk Box of 50
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Product Description
M12-1.75 x 180 mm Flat Head Socket Cap Screws / Class 12.9 / Alloy Steel / Black Oxide / Partial Thread
RoHS Compliant
Frequently Asked Questions
What does the metric class number mean?
The first number indicates tensile strength (e.g., 12 = 1,200 MPa). The second number is the yield-to-tensile ratio. So Class 12.9 has 1,220 MPa tensile strength and yield at 90% of tensile. Class 12.9 is equivalent to inch Grade 8.
Does Black Oxide finish provide corrosion protection?
Black Oxide provides mild corrosion resistance through a controlled oxidation process. It is dimensionally stable (no plating buildup), will not chip or flake, and is suitable for indoor use. For outdoor or wet environments, additional oil coating or a different finish (zinc, stainless) is recommended.
$216.11
$4.32/pc
.50 x 18mm Flat Head Socket Cap Screw, Full Thread (DIN 7991) / Class 12.9 Alloy Steel / Black Oxide
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Technical Specifications
Thread Size
M12-1.75
Length
180mm
Thread Type
Coarse
Material
Steel
Grade
Class 12.9
Finish
Black Oxide
Drive
Hex Socket (Allen)
Head Style
Flat Head
Standard
DIN 7991
Country of Origin
Import
Thread Pitch
1.75mm
Thread Class
Coarse
Tensile Strength
174000
Hardness
C39 - C44
RoHS Compliance
RoHS Compliant
Measurement System
Metric
SKU
534609-50