Description
Overview:
These Hex Socket Head Cap Screws are high‐tensile fasteners for demanding assemblies in plant, machinery, vehicles, and precision fixtures. Size M12 x 100 mm gives a robust 12 mm metric thread with a 100 mm length, suitable for deep clamping and high preload joints. They are made from Grade 12.9 alloy steel for exceptional strength and fatigue resistance, and finished in chemical black for added corrosion resistance and a low‐glare appearance. The internal hex drive suits standard metric Allen keys and bit sockets for reliable, slip‐resistant tightening in tight or recessed locations. Each screw is supplied individually to let you buy exactly the quantity you need. Approximate imperial size: 0.47 in x 3.94 in (0.47 in ≈ 12.0 mm, 3.94 in ≈ 100.1 mm). Manufacturer Part Number: 903 0316 50PK.
Key Features:
- Grade 12.9 high‐tensile steel for maximum strength and long service life
- Chemical black (black oxide) finish for added corrosion resistance and clean appearance
- Internal hex socket head for secure drive with Allen keys and hex bits
- M12 diameter with 100 mm length for strong clamping in structural joints
- Accurate threads and concentric head for consistent preload and alignment
- Resistant to vibration loosening when used with appropriate washers or threadlocker
- Compact head profile suits counterbored holes and confined assemblies
- Ideal for torque‐critical joints in heavy duty equipment and precision mechanisms
- Supplied individually for flexible maintenance, repairs, and builds
- Compatible with common workshop tools: Allen keys, T‐handles, and hex sockets
- Black colour helps identify high‐tensile fasteners during maintenance
- Clear sizing for quick replacement in mixed fastener kits
Typical Applications:
Used across industrial equipment, construction machinery, agricultural implements, machine tools, compressors, pumps, gearboxes, fixtures, and jigs. Suitable for repairs, upgrades, and OEM‐style assembly in areas needing high clamping force and reliable alignment, especially where a conventional hex bolt head will not fit.
Also known as:
Allen bolts, socket head cap screws, caphead screws, SHCS, internal hex bolts, socket screws, high‐tensile cap screws, metric cap screws, black cap screws.
Product Specifications
| L&S Part No. | 903 0316 |
|---|---|
| OEM No. | 903 0316 50PK |
| Unit of Sale | Each |
| Key Features | - M12 x 100 mm size for strong clamping - Grade 12.9 alloy steel for high strength - Chemical black finish for corrosion resistance - Internal hex drive for secure tightening - Supplied individually for flexible purchasing |
