ISO 4017 Fully Threaded Hex Bolt Specifications
Parameter | Details |
Product Name | ISO 4017 Fully Threaded Hex Head Bolt |
Executive Standard | ISO 4017:2022, Replace Old DIN 933 Standard |
Accuracy Grade | Grade A (Precision Tolerance), Grade B (General Tolerance) |
Strength Grade | 4.8/8.8/10.9/12.9 Carbon Steel, A2-70/A4-70 Stainless Steel |
Size Range | M1.6-M64 Full Sizes, M6-M36 Regular Stock Available |
Length Range | 6mm-300mm Standard Length, Custom Non-standard Length |
Structural Feature | Full thread shank, no smooth unthreaded section, full-length locking travel |
Surface Finish | Black Oxide, Zinc Plated, Hot-dip Galvanized, Stainless Steel Polished |
Material | High-quality Carbon Steel, Alloy Steel, 304/316 Stainless Steel |
Core Performance | Flexible locking stroke, strong versatility, stable tensile fastening performance |
Application | Sheet metal, cabinet equipment, general machinery, electrical facilities fastening |
Quality Inspection | Dimension tolerance, thread gauge test, hardness, tensile strength full inspection |
Package | Export carton + pallet, neutral non-logo packaging supported |
Supply Capacity | Adequate regular stock, bulk engineering orders, customized processing |
Product Core Advantages
Full Thread Design for Flexible Thin Workpiece Fastening
The ISO 4017 bolt adopts a full-thread integral shank structure with no smooth intermediate section. It provides an ultra-long adjustable locking stroke, allowing nuts to be locked at any position of the thread. This design perfectly adapts to thin plate, sheet metal and shell assembly with small fastening thickness, solving the problem of insufficient locking travel of partial-thread bolts in thin-workpiece scenarios, with extremely high assembly flexibility.
Dual A/B Precision Grades for Diversified Scenarios
Grade A bolts feature ultra-tight dimensional tolerance, suitable for precision mechanical equipment, imported equipment replacement and high-standard engineering projects with strict assembly requirements. Grade B bolts have stable performance and higher cost performance, ideal for mass production of sheet metal cabinets and general industrial fastening. Dual-grade matching meets different overseas engineering acceptance standards and customer budget needs.
Global Universal Standard with High Compatibility
As the updated international standard replacing the traditional DIN 933, ISO 4017 has unified global dimensional specifications and thread precision. It is highly compatible with all standard nuts, washers and matching fasteners in the market without secondary modification, and is widely recognized and adopted in European, American, Southeast Asian and other global markets, with excellent universal applicability.
Multi-material & Multi-anticorrosion Solutions
Equipped with carbon steel high-strength series for conventional heavy-duty mechanical fastening; stainless steel series for humid, acidic and alkaline corrosive environments. Multiple surface treatments including black oxide, electro-galvanizing and hot-dip galvanizing cover indoor dry, outdoor open, coastal humid and other complex working conditions, realizing full-scene adaptive use.
Production Process
High-quality Raw Material Selection: Adopt qualified carbon steel, alloy steel and stainless steel raw materials with uniform composition and stable mechanical properties to ensure the basic quality of finished bolts.
Precision Cold Heading Forming: Integral cold forging forming, full hexagonal head with full shape and no defects, straight bolt shank without bending or deformation.
Full Thread Rolling Processing: Professional thread rolling technology, full-shank standard thread with full tooth profile, no broken teeth or burrs, 100% qualified by go-no-go gauge inspection.
Professional Heat Treatment: High-strength grade bolts undergo integral quenching and tempering treatment to balance hardness and toughness, meeting international mechanical property standards.
Customized Surface Anti-corrosion Treatment: Select black oxide, electro-galvanizing, hot-dip galvanizing and polishing processes according to customer and working condition requirements.
Strict Finished Product Inspection: Full inspection of dimensions, thread precision, hardness, appearance and mechanical properties, only qualified products are delivered.
Application Industries
Sheet Metal & Cabinet Equipment: Fastening and assembly of electrical cabinets, equipment shells, sheet metal frames and box components.
General Mechanical Equipment: Fixed connection of mechanical frames, cover plates and non-shear load-bearing structural nodes.
Electrical Industry: Supporting fastening of distribution cabinets, control cabinets and electrical auxiliary components.
Construction Machinery Accessories: Fastening of non-load-bearing and non-shear parts of engineering machinery and supporting equipment.
Global Industrial Supporting Projects: Universal standard fasteners for overseas infrastructure, mechanical supporting and industrial assembly projects.
Why Choose Our ISO4017 Bolts
We are a professional manufacturer of ISO standard fasteners, specializing in the production of ISO 4017 full-thread hex bolts. All products are strictly produced in accordance with the latest ISO 4017:2022 international standards, with clear A/B grade classification, complete strength grades and full size specifications. We can provide complete material certificates, mechanical performance test reports and quality inspection reports. Support small-batch sample customization, large-batch engineering order mass production and non-standard drawing processing, providing stable and high-cost-effective fastening solutions for global industrial customers.
Installation Notes
1. Professional Model Selection: ISO4017 full-thread bolts are preferred for thin plate and thin workpiece assembly; ISO4014 partial-thread bolts are used for thick plates and nodes bearing large transverse shear force to avoid connection failure.
2. Reasonable Grade Matching: Select Grade A precision bolts for high-precision equipment and imported replacement parts; choose Grade B economical bolts for ordinary sheet metal and cabinet assembly to optimize project cost.
3. Standard Torque Construction: Strictly construct according to the standard torque corresponding to the bolt grade. Over-tightening will cause thread damage and bolt tensile deformation, affecting connection safety.
4. Working Condition Adaptation: Adopt galvanized or stainless steel bolts for humid, outdoor and corrosive environments; black oxide bolts are only suitable for indoor dry environments.
5. Prohibit Reuse of Structural Bolts: Pre-stressed structural bolts will produce internal fatigue stress after use. Reuse is prohibited for key engineering nodes to eliminate potential safety hazards.
For ISO4017 full thread hex bolts, complete ISO standard fastener series and customized fastening solutions, please contact us for accurate quotation and professional technical support.
