Description
Overview:
These Hex Socket Head Cap Screws are high-strength fasteners for demanding assemblies where space is limited and a reliable clamp is required. Made from Grade 12.9 high-tensile alloy steel with a chemical black finish, they provide dependable performance in machinery, fixtures, and engineered structures. The M8 x 45 mm size suits standard M8 tapped holes, with a typical 6 mm internal hex drive for straightforward tightening using an Allen key or bit. The cylindrical cap head seats neatly in counterbored holes and tight recesses, helping achieve high preload without large external wrench space. Supplied in a pack of 10 under MPN 903 0297 200PK, these screws are a practical choice for assembly, maintenance, and repair on construction equipment, workshop machinery, garden machinery, and general mechanical builds.
Key Features:
- Grade 12.9 high-tensile alloy steel for maximum strength and durability in high-stress joints
- Chemical black coating for low glare and light corrosion protection; oiling recommended in harsh environments
- Size: M8 x 45 mm for standard metric applications; typical 6 mm hex socket drive for easy installation
- Cylindrical cap head fits counterbores and confined spaces where spanners cannot reach
- Clean, accurate metric threads for consistent engagement and joint integrity
- Pack of 10 for convenient stocking on site or in the workshop
- Reliable clamp force helps resist vibration loosening when used with suitable washers or threadlock
- Commonly used to replace or upgrade standard bolts where higher strength is needed
- Alternative finishes available across the range, including zinc plated and stainless steel (supplied item is chemical black)
- Size range available across the series from M3 x 10 to M24 x 100 to suit various builds
Typical Applications:
Ideal for assembling and repairing machinery frames, mounting motors and gearboxes, fixing guards and brackets, clamping bearing housings, securing hydraulic and pneumatic components, and general fabrication. Widely used on construction plant, agricultural kit, garden machinery, workshop tools, jigs and fixtures, and metalwork projects where a strong, compact-headed fastener is preferred.
Also known as:
Allen bolts, cap head bolts, socket head screws, hexagon socket cap bolts, SHCS, internal hex bolts, Allen cap screws, cap head screws, hex socket cap bolts.
Product Specifications
| L&S Part No. | 903 0297 |
|---|---|
| OEM No. | 903 0297 200PK |
| Unit of Sale | Pack of 10 |
| Key Features | - Grade 12.9 high-tensile alloy steel for maximum strength - M8 x 45 mm size fits standard metric applications - 6 mm hex socket drive for easy installation - Chemical black coating for light corrosion protection - Pack of 10 for convenient stocking and use |
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