Description
M3x8 Button Head HEX Screw, SS — BOLTON SKU 58793.
About the M3x8 Button Head HEX Screw SS
This line is referenced against RS stock number 183-8597, an RS PRO hexagon socket button head screw in M3 x 8 mm, stainless steel, conforming to ISO 7380. The M3 thread runs at the coarse 0.5 mm pitch and the 8 mm figure is the length of the shank beneath the head, since button head screws are measured under the head rather than overall. The head itself is a shallow dome of larger diameter than a cap head, which spreads the clamping load over a wider bearing area and leaves a rounded profile with nothing sharp standing proud of the surface. Drive is by hexagon key into a socket recess in the head. Because the socket in an M3 button head is shallower than in an equivalent socket cap screw, this form is specified for light and moderate clamp loads rather than high-torque structural joints, and stainless steel gives corrosion resistance in humid and washdown environments.
Key specifications
| Attribute | Value |
|---|---|
| Reference | RS stock number 183-8597 |
| Standard | ISO 7380 (hexagon socket button head) |
| Thread | M3 x 0.5 coarse |
| Length under head | 8 mm |
| Head form | Button (domed) head |
| Drive | Hexagon socket |
| Material | Stainless steel |
Typical applications
An M3 x 8 stainless button head is a panel and cover fastener: securing thin sheet covers, instrument fascias, cable cleats, small brackets and enclosure lids where the head will be handled or brushed against and a low rounded profile is preferred to a protruding cap head. The 8 mm length suits thin stacks of sheet or a shallow tapped boss. Stainless construction makes it a common choice for outdoor cabinets and marine or coastal installations.
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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