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Metric spring washers - Type B
DIN 127
BS 4464
Materials and Finishes
Steel/Zinc & clear
Stainless steel/Self colour
Note: Due to the fact that fastening applications differ greatly, the below information is for guidance only and is correct to the best of our knowledge. The customer must satisfy themselves with the performance of the fastener and validity of the data. TR Fastenings will not be held responsible for any failure that may occur from the use of this information.
| For metric screws | d min | D max | H | s |
| M2 | 2.1 | 4.4 | 1 | 0.5 |
| M2.3* | 2.4 | 4.9 | 1.2 | 0.6 |
| M2.5 | 2.6 | 5.1 | 1.2 | 0.6 |
| M2.6* | 2.7 | 5.2 | 1.2 | 0.6 |
| M3 | 3.1 | 6.2 | 1.6 | 0.8 |
| M3.5 | 3.6 | 6.7 | 1.6 | 0.8 |
| M4 | 4.1 | 7.6 | 1.8 | 0.9 |
| M5 | 5.1 | 9.2 | 2.4 | 1.2 |
| M6 | 6.1 | 11.8 | 3.2 | 1.6 |
| M7* | 7.1 | 12.8 | 3.2 | 1.6 |
| M8 | 8.1 | 14.8 | 4 | 2 |
| M10 | 10.2 | 18.1 | 4.4 | 2.2 |
| M12 | 12.2 | 21.1 | 5 | 2.5 |
| M14 | 14.2 | 24.1 | 6 | 3 |
| M16 | 16.2 | 27.4 | 7 | 3.5 |
| M18* | 18.2 | 29.4 | 7 | 3.5 |
| M20* | 20.2 | 33.6 | 8 | 4 |
| M22* | 22.5 | 35.9 | 8 | 4 |
| M24* | 24.5 | 40 | 10 | 5 |
| M27* | 27.5 | 43 | 10 | 5 |
Spring Washers Information
Spring washers, sometimes called disc springs, are a subtype of washers. They lend their mechanical capabilities to the unique profile of the material: when subject to a load, the irregularities of the washer compress with a proportionate resistance to return to their predeflected shape. Spring washers are employed in applications where assemblies need a part to take up play, eliminate rattle, maintain assembly tension, compensate for expansion or contraction in materials after assembly, or to absorb intermittent shock loads and provide a controlled reaction under dynamic loads.
Operation
Deflecting under a load, a spring washer is very much like a compression spring. As such, the deflection rate of a wave washer is conditional of the washer's dimensions and materials. Thicker, taller spring washers can sustain more load. When under stress, the raised irregularities of the disc spring flatten to a predetermined degree. Spring washers are either under static or dynamic load. In a static load application, the basic function of the washer is to retain load and the elastic load rating of the washer material may be exceeded. For a dynamic load, the washer functions as a flexing spring and the yield limit must not be exceeded or permanent disfiguration will occur.
Spring washers undergo elastic deformation which is reversible and is determined by the material of construction. If the washer is overstressed or near the end of its cycle life, it will experience plastic deformation where some of its deflection is irreversible; this is the first sign of washer fatigue.Borrelly - Spring Washers
Spring washers have a small footprint and are valued in small machines where a coil spring would be unsuitable. Spring washers can also deflect in a linear, progressive, or regressive means and these devices show a symmetrical deflection around the washer's axis. Spring washers can be stacked to create spring sets or series where deflection and load capacity can vary without materially affecting the forces involved.
Production
Production methods of spring washers include stamping, machining, hot forged, rolled, or some combination of these. The following infographic explains common production protocol for spring washers according to material and application requirements.
Types of Washer | |||||
Spring Washer Application Industries
Sunflex Metal Industries are engaged in manufacturing of robust quality of Spring Washer. These Spring Washer are widely used in the following industries:
Mining Industries Transport Industries- Rail and Road Construction Industries / Building Systems Manufacturing Industries Agriculture Industries Energy Industries Water Industries Automotive Industries Ship Building Industries Nuclear Power Plant Paper & Pulp Industries Sugar Industries Engineering Cement Industries Petro-Chemical Industries Food Industries Oil & Gas Industries Chemical & Pharmaceutical Industries
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Spring Washer List :
- Metric Single Coil Square Section Spring Washer Spring-Steel DIN7980
- Metric Rectangular Section Spring Washer Spring-Steel DIN127B
- Metric Double Coil Rectangular Section Spring Washer Spring-Steel DIN127
- Inch Single Coil Square Section Spring Washer Spring-Steel BS1802A
- Inch Rectangular Section Spring Washer Spring-Steel BS1802B
- Inch Double Coil Rectangular Section Spring Washer Spring-Steel BS1802D
- Metric Rectangular Section Spring Washer Phosphor-Bronze DIN127B
- Metric Wave Split Lock Spring Washer Stainless-Steel-A4 DIN128B
- Metric Single Coil Square Section Spring Washer Stainless-Steel-A4 DIN7980
- Metric Rectangular Section Spring Washer Stainless-Steel-A4 DIN127B
- Metric Wave Split Lock Spring Washer Stainless-Steel-A2 DIN128B
- Metric Single Coil Square Section Spring Washer Stainless-Steel-A2 DIN7980
- Metric Rectangular Section Spring Washer Tange Ends Stainless-Steel-A2 DIN127A
- Metric Rectangular Section Spring Washer Stainless-Steel-A2 DIN127B
- Metric Rectangular Section Spring Washer Tange Ends Spring-Steel DIN127A
- Metric Single Coil Square Section Spring Washer Phosphor-Bronze DIN7980
- BA Single Coil Square Section Spring Washer Spring-Steel BS1802A
- Inch BA Rectangular Section Spring Washer Spring-Steel BS1802B
- Metric Curved Split Lock Spring Washer Phosphor-Bronze DIN128A
- Metric Curved Split Lock Spring Washer Stainless-Steel-A4 DIN128A
- Metric Curved Split Lock Spring Washer Stainless-Steel-A2 DIN128A
- Metric Wave Split Lock Spring Washer Spring-Steel DIN128B
- Metric Curved Split Lock Spring Washer Spring-Steel DIN128A
- Inch Double Coil Rectangular Section Spring Washer Spring-Steel B18.21.1
- Inch Washer Spring, Hi Collar Spring-Steel B18.21.1T4
- Inch Washer Spring, Heavy Spring-Steel B18.21.1T2
- Inch Washer Spring, Extra Duty Spring-Steel B18.21.1T3
- Inch Single Coil Regular Section Spring Washer Spring-Steel B18.21.1T1
- Inch Single Coil Square Section Spring Washer Stainless-Steel BS1802A
- Inch Single Coil Square Section Spring Washer Spring-Steel B18.21.1
- Inch Rectangular Section Spring Washer Stainless-Steel BS1802B
- Inch Double Coil Square Section Spring Washer Spring-Steel
