Washers

Trojan Special Fasteners Ltd routinely manufactures plain flat washers to customer's requirements in multiple material and finish combinations.

Washers are typically used to increase the bearing surface of a fastener. This provides increased surface area for a fastener and compensates for oddly sized or shaped holes. The addition of a washer to a nut and bolt assembly will resist loosening.

Washers are also used to distribute force so that mating surfaces are not damaged by nuts, especially square unchamfered nuts which have very sharp edges.

In addition to standard preferred sizes, we also manufacture non standard and non preferred sizes.

Unchamfered

Single Chamfered

Double Chamfered

We can manufacture to the following specifications:

In addition to machining washers to your dimensions, sample or drawing, we can machine washers to the following specifications:

Standard Description
AS 1237.1-2002 Plain washers
AS 1237.1-2002 Large Flat washers
AS 1237.1-2002 Extra Large flat washers
AS 1237.1-2002 Small plain washers
ANSI B18.2.6-2003 Steel Circular clipped washers
ANSI B18.22.1A-1981 Type A Plain washers
ANSI B18.22.1B-1981 Type B Plain washers
ANSI B18.22.1A-1965 Type A Plain washers
ANSI B18.22.1B-1965 Type B Plain washers
ANSI B18.22M-1981 Metric flat washers
ASTM F436-2010 Extra Thick clipped washers
ASTM F436M-2010 Clipped washers
BS 3410 Table 3 Light flat washers
BS 3410 Table 3 Heavy flat washers
BS 3410 Table 4 Light flat washers
BS 3410 Table 4 Heavy flat washers
BS 3410 Table 4 Heavy flat washers
BS 3410 Table 5 Flat washers
BS 3410 Table 6 Flat washers
BS 3410 Table 7 flat washers
BS 3410 Table 8 flat washers
BS 3410 Table 9 Flat washers
BS 4320 Form A Bright Flat washers
BS 4320 Form B Bright Flat washers
BS 4320 Form C Bright Large Flat washers
BS 4320 Form D Bright Large Flat washers
BS 4320 Form E Black Flat washers
BS 4320 Form F Black large Flat washers
BS 4320 Form G Black extra large Flat washers
DIN 125-1 Flat washers
DIN 125-2 Type A washers
DIN 125-2 Type B washers
DIN 433-1 Flat washers
Standard Description
DIN 433-2 Flat washers
DIN 440 Flat washers
DIN 1052 Washers for Timber Construction
DIN 1440 Flat washers
DIN 1441 Flat washers
DIN 6319 Type C spherical washers
DIN 6319 Type D conical seat washers
DIN 6319 Type G conical seat washers
DIN 6340 Flat washers
DIN 6902 Type A Flat washers
DIN 6902 Type B Flat washers
DIN 6902 Type C Flat washers
DIN 6903 Type A Flat washers
DIN 6903 Type B Flat washers
DIN 6916 Flat washers
DIN 7349 Flat washers
DIN 7989 Flat washers
DIN 9021 Flat washers
DIN 34820 Chamfered flat washers
EN 14399-5 Flat Washers
EN 14399-6 Chamfered Flat Washers
IFI 542 Flat washers
ISO 7089 Flat washers
ISO 7090 Chamfered flat washers
ISO 7091 Normal series flat washers
ISO 7092 Small series flat washers
ISO 7093-1 Large series flat washers
ISO 7093-2 Large series flat washers
ISO 7094 Extra large series flat washers
ISO 7415 Flat washers
ISO 7416 Chamfered flat washers
ISO 8738 Clevis Pin flat washers

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