Description
Socket Head Cap Screw M3x16 Steel Zinc Plated Blue ISO 4762 — BOLTON SKU 60222.
About the Socket Head Cap Screw M3x16 Steel Zinc
This Socket Head Cap Screw M3x16 Steel item is made to ISO 4762 (equivalent to DIN 912), the hexagon socket head cap screw standard, in steel finished with zinc electroplating and blue (bright) passivation. It carries an M3 x 0.5 coarse metric thread over a 16 mm nominal length; the standard defines a 5.5 mm head diameter and 3 mm head height for M3, with a 2.5 mm hexagon socket drive. The zinc coating provides sacrificial corrosion protection for the steel beneath, and the blue-passivate conversion layer over the zinc improves the coating’s own durability while giving the familiar bright, slightly blue-silver appearance of commercial zinc-plated fasteners. Compared with the stainless alternative, a plated steel screw of this pattern is typically specified where the assembly lives indoors or in dry service and standard steel strength grades are wanted. The 16 mm length reaches through deeper component stacks in the M3 range.
Key specifications
| Standard | ISO 4762 / DIN 912 hexagon socket head cap screw |
|---|---|
| Thread | M3 x 0.5 (coarse metric) |
| Nominal length | 16 mm |
| Head diameter / height | 5.5 mm / 3 mm (per standard) |
| Drive | 2.5 mm hexagon socket |
| Material / finish | Steel, zinc plated with blue (bright) passivation |
Typical applications
Zinc-plated M3 x 16 cap screws are production hardware for indoor equipment: control panels, instrument chassis, actuators and machine sub-assemblies where the fastener is protected from weather and a plated-steel screw is the economical standard. The longer 16 mm grip suits fastening through spacers and thick mouldings into tapped metalwork.
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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