Description
Hex Socket Cap Screw M6x20 SS A4 ISO 4762 — BOLTON SKU 70928.
About the 1234196 Socket Cap Screw, M6 x 20
This Hex Socket Cap Screw M6x20 SS is an M6 × 20 mm socket head cap screw made to ISO 4762, the standard governing cylindrical-head internal-hexagon cap screws. For the M6 size the standard specifies a 1.0 mm coarse thread pitch, a 10 mm maximum head diameter, a 6 mm head height and a 5 mm A/F hexagon socket, giving a compact head that sits flush in a counterbore and transmits drive torque without external wrench clearance. The screw is produced in A4 austenitic stainless steel — the molybdenum-alloyed 316-type grade used where fasteners face salt spray, wash-down chemicals or coastal atmospheres. At 20 mm nominal length this size is normally fully threaded, suiting tapped-hole assembly without a plain shank. Confirm property class (commonly A4-70 or A4-80) and any locking or lubrication requirement in your RFQ.
Key specifications
| Standard | ISO 4762 (hexagon socket head cap screw) |
|---|---|
| Thread | M6, coarse (1.0 mm pitch) |
| Nominal length | 20 mm |
| Material | A4 austenitic stainless steel (316 type) |
| Head style | Cylindrical socket head, 5 mm A/F hex drive |
| Head dimensions (ISO 4762, M6) | Ø10 mm max × 6 mm high |
Typical applications
M6 × 20 A4 socket cap screws serve general machine-building duty in corrosion-exposed assemblies — securing covers, sensor brackets, rail and guide components, and light structural connections on equipment operated near the coast or subject to frequent washdown. The flush counterbored head keeps external surfaces snag-free on handled equipment.
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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