DIN 7991 Countersunk Head Screws

Place of Origin CHINA
Brand Name QBH
Certification ISO9001
Model Number DIN7991
Minimum Order Quantity 900kg
Price 1000USD/TON
Packaging Details 25kg Carton+900kg/Pallet
Delivery Time 30days
Payment Terms L/C, T/T
Supply Ability 200TON/MONTH
Product Details
Material Carbon Steel Size M3-M24
Surface Treatment Plain,Zinc,Black Grade 6.8/8.8/10.9/12.9
Process Cold Forming Sample Free Sample
Packaging 25kg Carton+900kg/Pallet
High Light

DIN 7991 Countersunk Head Screws

,

M24 Countersunk Head Screws

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Metric Flat Countersunk Head Cap Screw

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Product Description

DIN 7991 Flat Black Zinc M3 To M24 Countersunk Head Screws

 

Flat head countersunk socket cap screws DIN 7991 are not intended for high strength application. The purpose of producing them with a strength of the property class 10.9 is to increase the wear resistance of the sockets.

 

 

Current norm: DIN EN ISO 10462
Equivalent norms: ISO 10642; UNI 5933;

 

 

Screw Thread
d
M3 M4 M5 M6 M8 M10 M12 (M14) M16 (M18) M20 (M22) M24
P Pitch
α tol.(+2)
b L≤125mm
125<L ≤ 200
L>200
dk max=nominal size
min
ds max=nominal size
min
e min
k max
s Nominal Size
min
max
t max=nominal size
min
0.5 0.7 0.8 1 1.25 1.5 1.75 2 2 2.5 2.5 2.5 3
90° 90° 90° 90° 90° 90° 90° 90° 90° 90° 90° 60° 60°
12 14 16 18 22 26 30 34 38 42 46 50 54
/ / / 24 28 32 36 40 44 48 52 56 60
/ / / / / 45 49 53 57 61 65 69 73
6 8 10 12 16 20 24 27 30 33 36 36 39
5.7 7.64 9.64 11.57 15.57 19.48 23.48 26.48 29.48 32.38 35.38 35.38 38.38
3 4 5 6 8 10 12 14 16 18 20 22 24
2.86 3.82 4.82 5.82 7.78 9.78 11.73 13.73 15.73 17.73 19.67 21.67 23.67
2.3 2.87 3.44 4.58 5.72 6.86 9.15 11.43 11.43 13.72 13.72 16 16
1.7 2.3 2.8 3.3 4.4 5.5 6.5 7 7.5 8 8.5 13.1 14
2 2.5 3 4 5 6 8 10 10 12 12 14 14
2.02 2.52 3.02 4.02 5.02 6.02 8.025 10.025 10.025 12.032 12.032 14.032 14.032
2.1 2.6 3.1 4.12 5.14 6.14 8.175 10.175 10.175 12.212 12.212 14.212 14.212
1.2 1.8 2.3 2.5 3.5 4.4 4.6 4.8 5.3 5.5 5.9 8.8 10.3
0.95 1.55 2.05 2.25 3.2 4.1 4.3 4.5 5 5.2 5.6 8.44 9.87

 

DIN 7991 Countersunk Head Screws 0

 

 

DIN 7991 Countersunk Head Screws 1

 

DIN 7991 Countersunk Head Screws 2

 

DIN 7991 Countersunk Head Screws 3