Alcoa Fastening Systems - Stoughton Operations

44 Campanelli Parkway ~ Stoughton, Massachusetts 02072 
800-343-3633   /    800-343-9664

Back-Up Washers     washerpic.JPG (56388 bytes)

                                                                      

Back-up washers are .056-.062 thick.
They are used when fastening soft materials, compensating for
oversize holes & to make up work thickness when an extra long rivet is used.
Only used when access to the blind side of the work is possible.
Marson
Part No.
Material Standard
Carton
Quantity
500 Pack
Part No.
Marson Bulk
Part No.
For
Rivet Size
Size / Shape
SS-3 Steel 5M 40653 50653 3/32" 1/2" SQ.
SS-4 Steel 5M 40654 50654 1/8" 1/2" SQ.
SS-6 Steel 5M 40656 50656 3/16" 1/2" SQ.
SS-8 Steel 10M 40658 50658 1/8" 3/8" RD
SS-9 Steel 10M 40655 50655 5/32" 7/16" RD
SS-10 Steel 10M 40661 50661 3/16" 1/2" RD
SS-12 Steel 10M 40662 50662 1/4" 1/2" RD
AS-8 Aluminum 10M 40657 50657 1/8" 3/8" RD
AS-9 Aluminum 10M 40659 50659 5/32" 7/16" RD
AS-10 Aluminum 10M 40650 50650 3/16" 1/2" RD
AS-12 Aluminum 10M 40665 50665 1/4" 1/2" RD

[ Home Page ]