Factory photograph of spring washer. Finishes shown are examples — all fifteen catalogue finishes are available on this item.
Spring Washer
Spring washers. The split ring is the oldest anti-vibration device on a bolted joint — it keeps a residual load on the thread as the assembly settles, so the nut does not free itself on the first few thermal cycles.
- M0.8 – M42
- 2mm – 3000mm
- Split spring ring — maintains residual load
- Carbon steel and stainless
- Quoted with matching bolts and nuts
Specification
- Item code
- BF-134
- Product group
- Washers
Item code BF-134 follows our internal catalogue reference — quote it and we know exactly which line you mean. Figures shown are the specification range this item is made to, not a stock list.
Selection options
Every option below can be specified against this item. Head and drive are chosen independently of each other, and of the point and thread form.
| Head types | Options |
|---|---|
| Available | Flat · Pan · Hex washer head · Hex washer flange · Bugle · Wafer · Pan washer · Oval · Flower · Truss · Round |
| Drive types | Options |
|---|---|
| Available | Phillips · Square · Pozidriv · Square + Phillips · Torx · Slotted · Phillips + slotted |
| Point types | Options |
|---|---|
| Available | TEK#1 · TEK#2 · TEK#3 · TEK#4 · TEK#5 · Type 17 |
| Thread forms | Options |
|---|---|
| Available | Type-A · BSB · CSB · Hi-low · Machine · Double |
| Surface finishes | Options |
|---|---|
| Available | Plain · Zinc plated · Colour zinc · Blue zinc · White zinc · Black zinc · Black phosphate · Grey phosphate · Black oxide · Dacrotized · Ruspert · Xylan · Nickel · Bronze · Spray paint |
| Additional requests | Options |
|---|---|
| Available | Serration under head · Without washer · With bonded washer · With PVC washer · With steel + EPDM washer · With rubber washer · With head mark · With wing · Slotted + wing |
Questions we get asked about this item
Are spring washers enough on a vibrating joint?
On a heavily loaded high-strength joint, correct preload does more than any washer. Tell us the joint and we will say what is worth specifying.
What finishes are available?
The same fifteen-finish range as the rest of the catalogue, from plain through to dacromet and Ruspert.
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Quote Spring Washer
Send diameter, length, head, drive, material, finish and quantity. If the combination you need is not on the standard matrix, send a drawing instead.