Introduction for Component: 991-06-70-01-05
This component is a standard socket head cap screw or Allen bolt, distinguished by its specific code which defines its key dimensions. The part number "991" typically identifies it within a catalog as a hex socket head screw, while the subsequent digits detail its size. It is a fundamental and versatile threaded fastener designed to be driven by a hexagonal Allen key. Made from high-strength steel, it is used to clamp components together with high force, thanks to its deep, internal hex drive which allows for a compact head design and application in tight spaces.
Technical Parameters & Specifications
The part number 991-06-70-01-05 can be decoded as follows, with critical dimensions and weight provided.
| Parameter | Specification | Notes / Unit |
|---|---|---|
| Part Number | 991-06-70-01-05 | Standard hex socket head cap screw code |
| Thread Diameter (d) | M6 | Metric coarse thread, 6mm nominal diameter. |
| Thread Pitch (P) | 1.0 mm | Standard pitch for M6 thread. |
| Total Length (L) | 70 mm | Measured from under the head to the end of the screw. |
| Head Diameter (dk) | 10 mm (approx.) | Standard for M6 socket head cap screw. |
| Head Height (k) | 6 mm (approx.) | Standard for M6 socket head cap screw. |
| Socket Size (s) | 5 mm | Internal hex key (Allen key) drive size. |
| Material / Grade | Steel, Grade 12.9 (Typical) | High tensile strength (minimum 1220 MPa). |
| Surface Finish | Black Oxide, Zinc-Plated, or Plain | Common corrosion-resistant or finished coatings. |
| Weight (Approx.) | ~0.016 kg (16 grams) | Calculated based on steel density (7.85 g/cm³). |
| Thread Length (b) | ~42 mm (approx.) | For a 70mm screw, standard thread length is ~1.5d + L-3d. |
Note on Weight: The weight is an approximation based on the geometry of a standard DIN 912 or ISO 4762 socket head cap screw. Minor variations may occur due to manufacturing tolerances, chamfer styles, or the specific coating applied. The suffixes -01-05 may denote specific plating/coating or tolerance class details.
Application Scenarios
This high-strength M6 socket head cap screw is a ubiquitous fastener in machinery and precision assemblies:
Machinery and Machine Tool Assembly: Used extensively to assemble frames, guards, brackets, and components on CNC machines, presses, and other industrial equipment due to its high clamping force and reliable Allen key drive.
Mold and Die Construction: Essential for securing mold plates, ejector housings, and various tooling inserts within injection molds and stamping dies, where flush or recessed heads are often required.
Automotive and Vehicle Sub-assemblies: Found in engine components, transmission housings, and aftermarket accessories where a compact, high-strength fastener is needed.
Jigs, Fixtures, and Workholding: Ideal for building custom fixtures, clamping devices, and modular workholding systems on machining centers.
General Engineering and Product Assembly: Used in a vast array of products, from industrial robots and conveyor systems to high-end bicycles and furniture, wherever a clean, strong, and secure threaded connection is required.
Key Feature: The internal hex (Allen) drive allows for a compact, cylindrical head that can be used in counterbored holes, providing a flush surface. The Grade 12.9 material offers the highest standard tensile strength, making this screw suitable for critical, high-stress applications.
Global direct procurement guarantee
All products are purchased directly from overseas original manufacturers or authorized channels, 100% guaranteed genuine quality, sufficient spot inventory, and comprehensive model coverage
Quality Commitment
Each product has been tested by our technicians, providing 12-month long warranty, worry-free after-sales
Flexible procurement plan
- Bulk order enjoys Friendship discount (2 pieces or more can be applied)
- Long-term cooperative customers can apply for priority supply
Full service support
7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
Why do so many customers choose us?
On the basis of the same quality, we provide:
- More competitive price system
- Faster logistics response
- More complete technical support (free product technical documentation)
Your trust is the driving force for our continuous progress, submit your requirements immediately to get exclusive quotes
