Description
Flat Washer M3 x 6 x 0.5, Stainless Steel — BOLTON SKU 63184.
About the Flat Washer M3
The catalogue reference wshr flat m3x6x0 5 ss abbreviates a stainless steel flat washer sized for M3 fasteners, with a 6 mm outside diameter and a nominal thickness of 0.5 mm. A flat washer of this kind is a plain annular disc with no spring action: its job is to spread the clamp load of the bolt or screw head over a wider bearing area, to protect the joint face from scoring as the head turns, and to give a consistent bearing surface where the hole is oversized or the material is softer than the fastener. The 6 mm outside diameter is narrow for an M3 washer, which is the usual choice where the surrounding counterbore, adjacent hardware or edge distance will not accept a wider disc. Stainless steel is specified for corrosion resistance and for material compatibility with stainless fasteners; the specific stainless grade is not stated on this catalogue line.
Key specifications
| Product type | Plain flat washer |
|---|---|
| For fastener size | M3 |
| Outside diameter | 6 mm |
| Thickness | 0.5 mm nominal |
| Material | Stainless steel (grade not specified on this line) |
Typical applications
Narrow-outside-diameter M3 washers are used under screw heads and nuts in tight assemblies: circuit-board and chassis mounting where components crowd the fixing, small brackets and covers, instrument and enclosure hardware, and any joint where a standard-width washer would foul an adjacent feature. Pairing a stainless washer with stainless screws keeps the joint consistent for corrosion purposes. Where a joint must resist loosening, a flat washer is normally combined with a separate locking element rather than relied on alone.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
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