Description
Overview:
These Hex Socket Head Cap Screws are high‐tensile fasteners made from property class 12.9 alloy steel for demanding mechanical joints. The chemical black (black oxide) finish provides added protection against corrosion and wear. Sized M16 x 100 mm (approximately 0.63 in diameter x 3.94 in length), they are suitable for construction plant, agricultural and garden machinery, automotive assemblies, industrial equipment, and general fabrication. The hex socket head allows high torque transfer with a hex key (Allen key), helping you achieve strong clamping in areas where a spanner would not fit. Supplied individually so you can purchase the exact quantity needed for repairs or new builds. Ideal for engine mounts, gearbox housings, machine frames, brackets, and flanged connections where reliability is essential.
Key Features:
- Property class 12.9 alloy steel for very high tensile strength and durability
- Chemical black (black oxide) finish for enhanced corrosion resistance
- Hex socket head for strong clamping and access in confined or recessed locations
- Precision size: M16 x 100 mm (approx 0.63 in x 3.94 in)
- Clean, accurate metric threads for dependable fit with M16 nuts and washers
- Fits standard metric hex keys/Allen keys, driver bits and torque tools
- Consistent head geometry for even load spread under the head
- Sold individually to match exact quantity requirements and reduce waste
- Manufacturer reference: 903 0321 25PK
Typical Applications:
Used for assembling and repairing machinery frames, gearboxes, pumps, engines, fixtures, guards and brackets on construction plant, agricultural kit, workshop equipment, and heavy‐duty garden machines. Suitable for mounting flanges, pulleys, couplings and structural plates where a compact, high‐strength fastener is required and clearance is limited.
Also known as:
Allen bolts, cap head bolts, socket head bolts, SHCS, cap head screws, high‐tensile cap screws, metric cap bolts, socket screws, metric Allen bolts, cap screws for machinery.
Product Specifications
| L&S Part No. | 903 0321 |
|---|---|
| OEM No. | 903 0321 25PK |
| Unit of Sale | Each |
| Key Features | - Property class 12.9 alloy steel for high tensile strength - Chemical black finish enhances corrosion resistance - Hex socket head allows access in confined spaces - Precision size: M16 x 100 mm - Sold individually to match exact quantity needs |
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