ISO 7380-10.9 Button Head Socket Cap

*Button Head

10.9 Grade

S050 - 7380-10.9 Bare Steel
S053 - 7380-10.9 Zinc Plated

ISO 7380

ISO 7380 Technical Drawing

*90° Countersink For Diameter M2 to M20 / 60° Countersink for Diameter M22 and Over

Diameter M3 M4 M5 M6 M8 M10 M12
r1 3 4.1 5.2 5.6 7.5 10 11
t min. 1.04 1.3 1.56 2.08 2.6 3.12 4.16
s 2 2.5 3 4 5 6 8
k max. 1.65 2.2 2.75 3.3 4.4 5.5 6.6
d1 5.5 7.5 9.5 10.5 14 18 21
Length (mm) Bare Zinc Bare Zinc Bare Zinc Bare Zinc Bare Zinc Bare Zinc Bare Zinc
S050 S053 S050 S053 S050 S053 S050 S053 S050 S053 S050 S053 S050 S053
Order Number -> 7380-10.9 Bare 10x20 = S050-010-0020

NOTE

Limited Use:
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.
Tightening Procedure:
Insert the key into the socket and apply the torque on the nut while holding the key. Should however, the torque be applied on the screw itself it should be reduced accordingly.
4   100            
5 100 100             
6 100 100 100  100  100        
8 100 100 100  100 100 100        
10 100  100  100 100 100 100 100 100     
12 100 100 100  100 100 100 100 100 100     
14       100  100      
16 100  100 100 100 100 100 100 100 100 100    
18       100  100  100    
20 100  100 100 100 100 100 100 100 100 100  100  
25 100  100  100 100 100 100 100 100 100  100  
30   100  100  100 100 100 100 100  100  
35   100  100  100  100  100  100  
40   100  100  100  100  100  100  
45       100  100  100  100  
50       100  100  100  100  
60       100      100