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Class 12.9 Flat Socket Cap Screws DIN 7991 CR+3 Zinc - Metric

Class 12.9 Flat Socket Cap Screws DIN 7991 CR+3 Zinc - Metric


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Class 12.9 Flat Socket Cap Screws DIN 7991 CR+3 Zinc - Metric

Zinc plated Flat Socket Head Cap Screws from Brighton Best. Hardness of RC 38-43, meets or exceeds DIN 7991. Manufactured from heat treated alloy steel, 1960 series.

Class 12.9 Flat Socket Cap Screws DIN 7991 CR+3 Zinc
Nominal
Size
Thread
Pitch
Body
Diameter
Head Diameter Head
Height
Hex
Socket
Size
Key
Engag-
ement

Wall

Thick-
ness

Drill
Allow-
ance
Max. Min. Theore-
tical
Sharp
Abso-
lute
Min.
Ref. Flush
Toler-
ance
Nom. Min. Min. Max.
M3 0.5 3.00 2.86 6.72 5.35 1.86 0.30 2.0 1.1 0.25 0.3
M4 0.7 4.00 3.82 8.96 7.80 2.48 0.30 2.5 1.5 0.45 0.4
M5 0.8 5.00 4.82 11.20 9.75 3.10 0.35 3.0 1.9 0.66 0.5
M6 1 6.00 5.82 13.44 11.70 3.72 0.35 4.0 2.2 0.70 0.6
M8 1.25 8.00 7.78 17.92 15.60 4.96 0.40 5.0 3.0 1.16 0.8
M10 1.5 10.00 9.78 22.40 19.50 6.20 0.50 6.0 3.6 1.62 0.9