Description
Overview:
These Hex Socket Head Cap Screws are high-tensile fasteners made from Grade 12.9 alloy steel for use in demanding assemblies on construction, agricultural and garden machinery, plant, and industrial equipment. The M20 x 100 mm size suits heavy-duty joints where strength and reliability matter. Each screw has a hex socket (Allen) drive for positive engagement with standard hex keys or bit sockets, helping prevent cam-out under torque. A chemical black (black oxide) finish offers added surface protection and a low-glare appearance. Sold individually (each). For reference, the major diameter is approximately 0.79 in (20 mm) and the length is approximately 3.94 in (100 mm), making this a suitable choice where a robust M20 fixing is required.
Key Features:
- Grade 12.9 alloy steel for very high tensile strength and fatigue resistance
- Hex socket head for secure drive and controlled tightening with standard tools
- Size: M20 x 100 mm; approx. 0.79 in diameter (20 mm) and 3.94 in length (100 mm)
- Chemical black (black oxide) finish for added protection and clean appearance
- Precise rolled or machined threads for consistent clamping force and fit
- Suitable for high-stress joints in machinery and equipment frames
- Neat cap head profile for use in counterbored holes and confined spaces
- Supplied individually to match exact replacement or build quantities
Typical Applications:
Used in machine builds, gearbox and motor mounts, pump and hydraulic assemblies, fabrication jigs, agricultural implements, compact plant, and garden machinery where a strong M20 fastener is needed. Ideal for cap head locations requiring reliable torque, repeatable assembly, and a tidy, recessed finish.
Also known as:
Allen bolt, socket head cap screw, cap head bolt, SHCS, hex drive cap screw, high-tensile cap screw, internal hex bolt, black oxide cap screw.
Alternate Part Numbers:
903 0324 25PK
Product Specifications
| L&S Part No. | 903 0324 |
|---|---|
| OEM No. | 903 0324 25PK |
| Unit of Sale | Each |
| Key Features | - Grade 12.9 alloy steel for high tensile strength - M20 x 100 mm size for heavy-duty joints - Hex socket head for secure drive with hex keys - Chemical black finish for surface protection - Suitable for high-stress machinery joints |
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