Description
Overview:
These Hex Socket Head Cap Screws are high-tensile fasteners for demanding assemblies in automotive, plant, construction, and industrial machinery, as well as heavy garden equipment. Made from alloy steel to Grade 12.9, they provide exceptional strength for critical joints where reliability matters. The cylindrical socket head accepts an internal hex (Allen) key for controlled, high-torque tightening in tight spaces. Size: M16 x 75 mm, equivalent to approximately 0.63 in (16.0 mm) diameter and 2.95 in (75.0 mm) length. A Chemical Black (black oxide) finish offers light corrosion resistance and a clean, low-glare appearance. Supplied individually so you can order exactly what you need for maintenance, repairs, or assembly work requiring consistent, high-strength fixings.
Key Features:
- Grade 12.9 high-tensile alloy steel for maximum strength and dependable clamp loads
- Chemical Black (black oxide) finish for light corrosion resistance and a professional look
- Size M16 x 75 mm (approx 0.63 in x 2.95 in), suitable for robust, precision assemblies
- Hex socket drive allows secure, high-torque tightening with standard Allen keys
- Compact cylindrical head fits recesses and offers good tool engagement
- Works with matching M16 nuts and washers; choose equal or higher strength for critical joints
- Available across a wider range, including Zinc Plated and Stainless Steel alternatives
- Family sizes typically span M3 x 10 up to M24 x 100 to cover varied applications
- Sold individually for cost-effective replacements and small-batch builds
- Manufacturer reference: MPN 903 0320 25PK (line supplied as single fasteners)
Typical Applications:
Used for assembling engine and gearbox housings, pump and motor mounts, hydraulic power packs, frames and brackets, jigs and fixtures, machine guards, and heavy garden/grounds equipment. Suitable for high-load bolted joints where consistent torque and strength are essential, including repairs and upgrades on site or in the workshop.
Also known as:
Allen bolts, SHCS, socket head bolts, internal hex cap screws, cap-head screws, cylinder head screws, hex-socket cap bolts.
Product Specifications
| L&S Part No. | 903 0320 |
|---|---|
| OEM No. | 903 0320 25PK |
| Unit of Sale | Each |
| Key Features | - Grade 12.9 alloy steel for maximum strength - M16 x 75 mm size for robust assemblies - Hex socket drive for secure, high-torque tightening - Chemical Black finish for light corrosion resistance - Sold individually for precise quantity needs |


