Description
Hex Socket Cap Screw M3x16, ISO 4762, Full Thread — BOLTON SKU 64500.
About the Hex Socket Cap Screw M3x16 ISO
ISO 4762 covers hexagon socket head cap screws — the cylindrical-head screw driven by an internal hexagon key, known in the older German system as DIN 912. This variant has an M3 thread with the ISO metric coarse pitch of 0.5 mm, a 16 mm length under the head, and is threaded over its full length rather than carrying a plain shank. At M3 the hexagon socket takes a 2.5 mm key. The cylindrical head is small in diameter relative to the load the screw carries, which is why socket head cap screws are the default where a fastener must sit in a counterbore and finish flush with or below the surface, and where there is no room to swing a spanner around a hexagon head. Full threading suits blind tapped holes and thin joints, where thread engagement is needed close under the head. The item is catalogued as screw cap hex skt M3 x 16; material, property class and finish are not fixed by that listing and should be stated on the RFQ.
Key specifications
| Attribute | Value |
|---|---|
| Standard | ISO 4762 (hexagon socket head cap screw) |
| Thread | M3 x 0.5 (ISO metric coarse) |
| Nominal length | 16 mm |
| Head form | Cylindrical socket head |
| Drive | 2.5 mm hexagon key |
| Threading | Fully threaded |
| BOLTON SKU | 64500 |
Typical applications
M3 x 16 socket cap screws are used for assembling machined brackets, plates, covers and instrument housings, for mounting sub-assemblies into counterbored pockets, and for clamping thin flanges where thread engagement close to the head matters. This length typically suits joint stack-ups of roughly 5 to 10 mm running into a tapped hole. Where a particular material, property class, plating or certification is required, it should be specified with the enquiry.
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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