Description
ISO 4762 Hexagon Socket Head Cap Screw M3 x 20, Steel — BOLTON SKU 69202.
About the ISO 4762 Hexagon Socket Head Cap Screw
This is an ISO 4762 Hexagon Socket Head Cap screw in the M3 x 20 mm size, manufactured in steel. ISO 4762 is the international standard for hexagon socket head cap screws: a cylindrical head with an internal hexagon drive, allowing the screw to be tightened with a hex key in counterbored holes or confined locations where an external wrench cannot reach. The M3 designation is a metric coarse thread with a 0.5 mm pitch under the ISO metric thread system, and the 20 mm dimension is the nominal length under the head. Property class and surface finish are not stated in this listing; where a specific grade (for example 8.8 or 12.9) or coating is required, state it in your RFQ so the correct certificate of conformity can be supplied.
Key specifications
| Standard | ISO 4762 |
|---|---|
| Head style | Cylindrical socket head cap |
| Drive | Internal hexagon socket |
| Thread | M3, metric coarse (0.5 mm pitch) |
| Length | 20 mm |
| Material | Steel |
Typical applications
M3 x 20 socket head cap screws are used in small machine assemblies, jigs, fixtures, instrument housings and electronic hardware where a compact head and high clamping capability are needed. The longer 20 mm length suits deeper counterbores and multi-layer stack-ups in this thread size.
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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