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M4 x 40mm Socket Cap Screws Black Grade 10.9 High Tensile - Pack of 12
$12.23
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M4 x 40mm Socket Cap Screws – Black – Grade 10.9 High Tensile – Pack of 12
M4 x 40mm socket cap screws (Allen bolts) in high tensile Grade 10.9 with a black finish. Driven by Allen hex key. Suitable for a wide range of engineering, automotive, and industrial fixing applications requiring high clamping strength and a longer grip length.
- Size: M4 x 40mm
- Pack Quantity: 12 screws
- Head Type: Socket cap (cylindrical)
- Drive: Hex socket (Allen key)
- Grade: 10.9 High Tensile
- Finish: Black (black oxide)
- Standard: DIN 912
- Country of Origin: GB
Ideal for precision engineering, machine assembly, automotive, and structural applications where a longer bolt length is required. The black oxide finish provides moderate corrosion resistance and a clean aesthetic. Not suitable for marine environments.