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3mm High Tensile Countersunk Bolts M3 x 8mm Black Grade 10.9 Pack of 16 Warehouse Equip Uk
£7.99
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M3 x 8mm Black High Tensile Countersunk Bolts - Grade 10.9 - Pack of 16
High-strength M3 x 8mm countersunk bolts manufactured from Grade 10.9 high tensile steel with a black self-colour finish. The flush-fitting countersunk head sits neatly below the surface of the material, making these bolts ideal for applications where a clean, snag-free finish is required. Grade 10.9 construction delivers significantly higher tensile strength than standard bolts, making them suitable for demanding engineering and industrial applications.
- Thread size: M3
- Length: 8mm (measured including head)
- Grade: 10.9 High Tensile Steel
- Finish: Black self-colour
- Head type: Countersunk (CSK) with hex/Allen socket drive
- Pack quantity: 16 bolts
- Standard: DIN 7991
Suitable for CNC machining fixtures, engineering assemblies, RC car builds, and any application requiring a strong, low-profile fastener. Not recommended as a direct replacement in safety-critical high tensile applications without engineering sign-off.