M8 x 30mm socket cap screw in A4 marine grade stainless steel to ISO 4762. Driven with a hex key, the cylindrical head suits machinery, jig frames, and precision assemblies where a spanner has no clearance. A4 (316) gives outstanding saltwater and chloride resistance for marine, coastal, and pool use. Free next-day UK delivery on orders over £50.
  • M8 x 30mm socket cap screw marine grade 316 ISO 4762
  • ISO 4762 socket cap screw M8 x 30mm A4 marine grade stainless steel, side profile
  • Allen key socket head detail - M8 x 30mm A4 stainless cap screw ISO 4762
  • Simfix product label - 4762A40803070PK10-SIM
  • Simfix product label - 4762A40803070PK50-SIM
M8 x 30mm socket cap screw marine grade 316 ISO 4762
ISO 4762 socket cap screw M8 x 30mm A4 marine grade stainless steel, side profile
Allen key socket head detail - M8 x 30mm A4 stainless cap screw ISO 4762
Simfix product label - 4762A40803070PK10-SIM
Simfix product label - 4762A40803070PK50-SIM

Simfix

Hexagon Socket Cap Screw ISO 4762 A4 A4 Stainless Steel (M8 X 30)

SKU 4762A40803070PK10-SIM
£6.43
Pack size:
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M8 x 30mm socket cap screw in A4 marine grade stainless steel to ISO 4762. Driven with a hex key, the cylindrical head suits machinery, jig frames, and precision assemblies where a spanner has no clearance. A4 (316) gives outstanding saltwater and chloride resistance for marine, coastal, and pool use. Free next-day UK delivery on orders over £50.
£6.43
M8 x 30mm socket cap screw marine grade 316 ISO 4762 ISO 4762 socket cap screw M8 x 30mm A4 marine grade stainless steel, side profile Allen key socket head detail - M8 x 30mm A4 stainless cap screw ISO 4762 Simfix product label - 4762A40803070PK10-SIM Simfix product label - 4762A40803070PK50-SIM
M8 x 30mm socket cap screw marine grade 316 ISO 4762 ISO 4762 socket cap screw M8 x 30mm A4 marine grade stainless steel, side profile Allen key socket head detail - M8 x 30mm A4 stainless cap screw ISO 4762 Simfix product label - 4762A40803070PK10-SIM Simfix product label - 4762A40803070PK50-SIM

This M8 x 30mm socket cap screw is manufactured to ISO 4762 in A4 stainless steel (316 marine grade). ISO 4762 specifies a cylindrical head with an internal hex socket, driven with a hex key (Allen key). The tall cylindrical head allows deep socket engagement and transfers high torque without the need for a spanner clearance envelope - allowing use in recessed positions and confined assemblies where a standard hex head bolt would be inaccessible. The compact head profile suits applications where appearance and precision are both important.

Typical applications

  • Marine equipment, boat deck hardware, and waterside fabrication
  • Swimming pool plant, pump assemblies, and water treatment equipment
  • Offshore structures and coastal installations with saltwater exposure
  • Chemical plant, food processing, and hygienic equipment

Available in packs of 10 to 50, with free next-day UK delivery on orders over £50 and 30-day no-quibble returns.

Fastener styleSocket cap screw with hex socket drive
StandardISO 4762
MaterialA4 stainless steel (316)
Property classA4-70
Thread sizeM8
Thread pitch1.25 mm (coarse)
Length30 mm
Head typeSocket cap
Drive typeHex socket (Allen)
Surface finishPlain (no plating)
HS commodity code7318156290
Recommended useMarine

RoHS and REACH compliant.

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