Description
Hexagon Socket Button Head Screw M3 x 8 — BOLTON SKU 60697.
About the Hexagon Socket Button Head Screw M3
The designation of this screw m3x8 hexagon socket button head fastener describes it precisely: an M3 metric thread, 8 mm of length measured beneath the head, a low domed button head, and a hexagon socket recess for the drive. Hexagon socket button head screws are covered by the ISO 7380-1 product standard, which fixes the head diameter, head height and socket size for each thread size. The practical characteristics of the button form follow from that geometry — a head diameter noticeably larger than a socket cap screw of the same thread, so bearing pressure on soft or thin material is lower; a head height that is shallower, so the screw stands less proud of the surface; and consequently a shallower socket, which limits the torque that can be applied before the key begins to cam out. For that reason the button head is a cosmetic and low-clearance choice rather than a high-clamp-load one.
Key specifications
| Attribute | Value |
|---|---|
| Head form | Button (domed) head |
| Drive | Hexagon socket |
| Thread | M3 |
| Length under head | 8 mm |
Typical applications
M3 x 8 is a short fixing for thin joints — retaining light covers, escutcheons, keypads and fascia plates, fitting small brackets and cable-management hardware, and holding PCB standoffs and shields inside instrument enclosures. The rounded head is chosen where hands or cabling will pass over the fastener and a sharp cap head edge would be a snag point, and where the screw remains visible on a finished surface.
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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