ISO 4014 Partial Thread Bolt Specifications
Parameter | Details |
Product Name | ISO 4014 Partial Thread Hexagon Head Bolt |
Standard | ISO 4014:2022 (Replaces DIN 931) |
Accuracy Grade | Grade A (Precision), Grade B (General) |
Strength Grade | 4.8/8.8/10.9/12.9, A2-70, A4-70 |
Size Range | M1.6-M64 Full Sizes, M6-M36 In Stock |
Structure | Smooth Shank + Partial Thread, High Shear Resistance |
Surface Finish | Black Oxide, Zinc Plated, Hot-dip Galvanized, Polished |
Application | Mechanical Equipment, Steel Structure, Machinery, Automotive, Industry Fastening |
Quality Control | Dimension, Thread, Hardness, Tensile Strength Full Inspection |
Package | Export Carton + Pallet, Neutral Packaging Available |
Supply Capacity | Mass Stock, Bulk Order & Custom Processing Supported |
Product Core Advantages
Superior Shear Resistance
The unthreaded solid shank bears transverse shear force directly, avoiding thread deformation and loosening. It provides higher connection rigidity and better anti-fatigue performance than full-thread bolts, ideal for dynamic load and vibration working conditions.
Dual Precision Grade Design
Grade A for high-precision equipment assembly and Grade B for general industrial fastening. Dual-grade design covers diverse application scenarios, balancing precision and cost for global engineering projects.
Global Universal Standard
Updated ISO 4014 international standard fully compatible with traditional DIN 931. Widely recognized in global markets, perfectly matching international equipment and steel structure supporting accessories without modification.
Multi-scenario Anti-corrosion Solution
Multiple materials and surface treatments adapt to indoor, outdoor, humid and corrosive environments. Reliable long-term service performance for complex overseas working conditions.
Production Process
High-quality Raw Material: Carbon steel, alloy steel and stainless steel with stable mechanical properties.
Precision Forming: Forged hex head and straight shank with compact structure.
Smooth Shank Machining: Accurate tolerance for precise assembly and positioning.
Standard Thread Rolling: Full gauge inspection for qualified thread profile.
Professional Heat Treatment: Tempering and quenching for balanced strength and toughness.
Custom Surface Treatment: Multiple finishes for different environmental requirements.
Strict Quality Inspection: Full dimensional and mechanical performance testing.
Application Industries
General Machinery: Equipment frame and box body fastening assembly.
Steel Structure Engineering: Light steel frame and support connection.
Construction Machinery: Heavy equipment load-bearing node fastening.
Automotive Industry: Chassis and structural component connection.
New Energy Equipment: Wind power and outdoor equipment supporting fasteners.
Global Industrial Project: Universal fasteners for international infrastructure projects.
Why Choose Our ISO4014 Bolts
We specialize in the production of ISO standard industrial bolts. All ISO4014 partial thread hex bolts are manufactured strictly in accordance with the latest international standards, with complete grades and full specifications. We provide complete test reports and certificates, support bulk export orders and customized production, delivering stable and cost-effective fastening solutions for global industrial and structural engineering.
Installation Notes
1. Reasonable Selection: Adopt ISO4014 partial thread bolts for thick plate connection and shear-resistant positioning nodes to improve connection stability.
2. Grade Matching: Choose Grade A for precision equipment and Grade B for general structures to optimize cost and performance.
3. Standard Torque Installation: Avoid over-tightening to prevent shank deformation and potential safety hazards.
4. Corrosion Protection: Select galvanized or stainless steel bolts for outdoor and corrosive environments.
5. Non-reusable for Structural Use: Pre-stressed structural bolts shall not be reused to ensure long-term structural safety.
For ISO4014 hex bolts, ISO standard full series fasteners and customized fastening solutions, please contact us for accurate quotation and professional technical support.
