ALUMINIUM FASTENERS - MAIN CHEMICAL & PHYSICAL CHARACTERISTICS

  • MATERIAL – 7075 GRADE HIGH TENSILE ALUMINIUM ALLOY WITH T73 HEAT TREATMENT
  • HEADS COLD FORMED WITH ROLLED THREADS
  • HIGH RESISTANCE TO CORROSION AND THE ELEMENTS
  • COLOUR ANODISED OR POTASSIUM BICHROMATE FINISH TO BETWEEN 8 & 12 MICRONS
  • 60% LIGHTER THAN STEEL
  • TENSILE STRENGTH – 490-560 MPa
  • MECHANICAL PROPERTIES – SUPERIOR TO THOSE OF MILD STEEL
  • CAN BE USED IN ALL NON - CRITICAL SAFETY AREAS.

 

 

MAXIMUM TIGHTENING TORQUE

M5

2.21 ft-lbs/3.00 Nm

M6

3.69 ft-lbs/5.00 Nm

M8

7.39 ft-lbs/10.00 Nm

M10

14.38 ft-lbs/20.00 Nm

*THE INFORMATION GIVEN IS FOR GUIDANCE ONLY AND SHOULD NOT BE USED TO ESTABLISH SPECIFICATION LIMITS.

 

SOCKET HEAD CAPSCREW

 

A

B

C

  

M5

8.5

4.5

4

  

M6

10

7

5

  

M8

13

9

6

  

M10

16

12.5

8

  


HEXAGON
 

A

B

    

M5

8

3.5

    

M6

10

4

    

M8

13

5.3

    

M10

17

6.4

    

FULLNUT
 

A

B

    

M5

8

4

    

M6

10

5

    

M8

13

6.5

    

M10

17

8

    


NYLOC NUT
 

A

B

    

M5

8

5

    

M6

10

6

    

M8

13

8

    

M10

17

10

    

WASHER
 

A

B

    

M4

10

0.8

    

M5

12

1

    

M5

16

1

    

M6

14

1.2

    

M6

18

1.6

    

M8

18

1.6

    

M10

22

2

    

COUNTERSUNK WASHER
 

A

B

C

D

M5

22

3

    

M6

22

3

    

M8

25

5

    

SOCKET COUNTERSUNK
 

A

B

C

  

M5

10

2.8

3

  

M6

12

3.3

4

  

M8

16

4.4

5

  

SOCKET BUTTON HEAD
 

A

B

C

  

M5

12

3.7

3

  

M6

16

4.5

4