Description
Overview:
These M5 x 40 hex socket head cap screws are high‐tensile fasteners for dependable assembly in construction and garden machinery, workshop tools, and general engineering. Manufactured from alloy steel to Grade 12.9, they provide very high strength for bolting components that see vibration, load, or repeated use. The chemical black finish gives a neat appearance and enhanced corrosion resistance, suitable for indoor and sheltered outdoor environments. The internal hex drive allows positive engagement with an Allen key, helping prevent cam‐out and making installation easier in tight spaces where a spanner or socket will not fit. Supplied in a pack of 10, they are a practical choice for repairs, maintenance, and new builds on equipment such as compactors, generators, mowers, and small plant assemblies.
Key Features:
- Grade 12.9 alloy steel for very high tensile strength and dependable clamping
- Size: M5 x 40 mm for medium‐duty fastening on brackets, guards, housings, and fixtures
- Chemical black finish for enhanced corrosion resistance and reduced glare
- Internal hex drive for secure torque transfer and easy access in confined areas
- Clean, cylindrical head profile for accurate seating in counterbored holes
- Consistent thread and head geometry for repeatable assembly and alignment
- Supplied in a convenient pack of 10 for repairs and stocking spares
- Compatible with standard metric M5 nuts, washers, and threadlocking compounds
- Typically driven with a 4 mm hex/Allen key for straightforward fitting and removal
- Suitable alternatives available in zinc plated or stainless steel where higher corrosion resistance is required
Typical Applications:
Fastening covers, guards, clamps, and fixtures on construction equipment, garden machinery, machine tools, jigs and fixtures, gearboxes, pump plates, and engine cowling. Ideal where a flush, precise head location is required and where reliable high‐strength clamping is needed under vibration and cyclic loads.
Also known as:
Allen cap screws, socket head cap screws, SHCS, internal hex cap screws, socket caps, hex drive cap bolts, Allen bolts.
Alternate Part Numbers:
903 0284 200PK
Product Specifications
| L&S Part No. | 903 0284 |
|---|---|
| OEM No. | 903 0284 200PK |
| Unit of Sale | Pack of 10 |
| Key Features | - Grade 12.9 alloy steel for high tensile strength - M5 x 40 mm size for medium-duty fastening - Chemical black finish enhances corrosion resistance - Internal hex drive allows secure torque transfer - Supplied in a pack of 10 for convenience |
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