Description
Overview:
These Hex Socket Head Cap Screws are high-tensile fasteners made from alloy steel to Grade 12.9. They are designed for reliable clamping in machinery, fixtures, and precision assemblies where strength and accuracy matter. The M8 x 70 size suits many repairs and builds across construction plant, workshop tooling, and garden machinery. Each screw has an internal hex drive for a positive fit with a hex key in confined spaces. Finished in chemical black for a low-glare look and light corrosion protection. Size reference: M8 x 70 mm, approximately 5/16 in diameter (≈7.94 mm) and 2.75 in length (≈69.85 mm). Supplied in a Pack of 10 for convenient stocking and consistent assembly. Manufacturer Part Number: 903 0301 100PK.
Key Features:
- Grade 12.9 alloy steel for high strength; typical minimum tensile strength ≈1220 MPa and high yield resistance
- Chemical black (black oxide) finish for light corrosion resistance and reduced glare in service
- Metric M8 x 70 mm size; imperial reference ≈5/16 in (≈7.94 mm) x 2.75 in (≈69.85 mm)
- Internal hex drive accepts a standard 6 mm hex/Allen key for secure tightening and reduced cam-out
- Precision head and shank for accurate seating in counterbores and rigid joints
- Heat-treated for durability and resistance to shear and fatigue in demanding assemblies
- Ideal for tapped holes or use with matching M8 nuts and washers in machinery and jigs
- Pack of 10 for consistent replacements and multi-bolt patterns
- Suitable for industrial, automotive, agricultural, and garden equipment repairs
- Alternative finishes in this range include Zinc Plated and Stainless Steel for different environments
- Broad size coverage available in the range from M3 x 10 to M24 x 100 for matching sets
Typical Applications:
Securing gearboxes, bearing housings, guards, and brackets; assembling jigs and fixtures; mounting motors, pumps, and linear rails; repairing compactors, mowers, generators, and compressors. A solid choice where high clamp force and dependable alignment are needed in plant maintenance, workshop builds, and precision engineering tasks.
Also known as:
Allen cap screws, socket cap bolts, SHCS, cap heads, internal hex bolts, high-tensile cap screws, socket head bolts, alloy steel cap screws. These terms commonly refer to the same internal hex, cylindrical-head fasteners used in precision and high-strength assemblies.
Product Specifications
| L&S Part No. | 903 0301 |
|---|---|
| OEM No. | 903 0301 100PK |
| Unit of Sale | Pack of 10 |
| Key Features | - Grade 12.9 alloy steel for high tensile strength - M8 x 70 mm size; ≈5/16 in x 2.75 in - Internal hex drive fits standard 6 mm hex key - Chemical black finish for light corrosion resistance - Supplied in a pack of 10 for convenience |
