Product Parameter Specifications
Parameter | Details |
Product Name | DIN 7984 Low Head Socket Cap Screw, Thin Head Hex Socket Screw |
Standard | DIN 7984 (2022 latest version) |
Product Grade | Class A precision tolerance |
Thread Size | M3-M24 regular sizes, custom lengths available |
Strength Class | Carbon steel 8.8/10.9/12.9; Stainless steel A2-70, A4-80 |
Material | Carbon steel, alloy steel, 304/316 stainless steel |
Surface Finish | Black oxide, zinc plated, color zinc, zinc-nickel, passivation |
Structure | Ultra-low head, thin lightweight profile, hex socket drive |
Core Features | Space-saving, anti-interference, precise locking, easy installation |
Applications | Precision equipment, automation components, micro molds, instruments |
Quality Control | Dimensional tolerance, thread inspection, head height, hex precision, visual check |
Supply Capacity | Sufficient stock, fast delivery for bulk export & custom orders |
Core Product Advantages
Ultra-low head for extremely limited space
With much lower head height than ordinary socket cap screws, DIN7984 minimizes protruding height, perfectly solving component interference problems in narrow installation spaces, serving as the preferred fastener for compact precision equipment.
Class A high precision for perfect fitting
Manufactured strictly according to DIN standards with Class A precision, accurate dimensions and standard thread profile. The hex socket fits tightly, ensuring flat and stable assembly to meet high-precision equipment requirements.
Lightweight compact design without operation interference
The thin low-profile head ensures a flush mounting surface after installation, avoiding friction and jamming during equipment operation and component sliding, ideal for micro precision components.
Multiple material & finish options for diverse scenarios
High-strength carbon steel suits conventional precision locking; stainless steel provides excellent rust and corrosion resistance for humid and outdoor environments. Various surface finishes meet different anti-corrosion and appearance standards.
Easy assembly and convenient maintenance
Standard hex socket drive matches universal hex tools, enabling labor-saving installation and removal. It improves mass assembly efficiency and facilitates later equipment maintenance.
Production Process
Material Selection: Qualified carbon steel and stainless steel materials with stable texture to guarantee basic mechanical performance for precision assembly.
Precision Cold Heading: Integrated multi-station cold forging accurately shapes ultra-low head size and flat surface with DIN-standard tolerance.
Precision Thread Rolling: CNC thread rolling forms full standard thread profile. Threads are inspected per DIN standards to ensure smooth and accurate mating.
Heat Treatment: High-strength products are quenched and tempered to balance hardness and toughness for daily precision locking demands.
Anti-corrosion Treatment: Black oxide, electroplating and passivation processes enhance rust resistance and weatherability.
Precision Inspection & Sorting: Batch inspection of head height, dimensional tolerance and thread accuracy to ensure stable batch quality.
Application Industries
Precision Instruments: Fastening internal components of testing instruments and micro precision equipment with narrow space.
Automation Equipment: Compact assembly for small automation modules, transmission parts and precision frames.
Micro Molds & Jigs: Fastening low-position areas of precision molds and fixtures to avoid mold closing interference.
Precision Sheet Metal: Assembly of ultra-thin sheet metal, equipment housings and control cabinets with limited space.
Light Precision Machinery: Structural fastening for small precision machinery and electronic equipment.
Installation & Usage Notes
1. Scenario selection: The low-profile head has limited axial load capacity, suitable only for conventional precision locking. Not recommended for heavy-load, high preload and impact working conditions.
2. Washer prohibition: Do not use with DIN6900 combined washers to prevent head extrusion damage and unstable assembly.
3. Professional tool matching: Use standard hex wrenches to avoid tool slipping, head wear and thread stripping.
4. Proper tightening torque: Control torque according to screw specifications to prevent head deformation and thread damage caused by over-tightening.
5. Environment-based selection: Choose black oxide or zinc-plated screws for dry indoor environments; select passivated stainless steel for humid and corrosive conditions.
Why Choose Our DIN 7984 Screws
We specialize in manufacturing DIN7984 low head socket cap screws in strict accordance with German industrial standards, focusing on space-saving precision fastening solutions. Our products feature accurate head dimensions, flat surface and precise thread matching with stable batch quality, effectively solving assembly interference caused by high ordinary screw heads. Sufficient stock for regular sizes supports fast bulk export delivery. Inspection reports are available to serve global customers in precision equipment, automation and instrument industries.
For high-quality DIN7984 low head socket cap screws and customized fastener solutions, please contact us for professional quotations and technical support.
