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ISO 4014 ISO 4017 DIN 933 Custom Threads
precision fasteners

Machine bolts

Hex · Socket · Carriage M3 – M64 · Custom Lengths Any Head Style
4.8 – 12.9 Property Classes
Cust Dimensions & Threads

Machine bolts are externally threaded fasteners designed for use with nuts or tapped holes in machinery, structural assemblies, and precision equipment. Available in a comprehensive range of head styles, thread configurations, and material grades, each bolt is engineered to meet specific load, torque, and environmental requirements. Custom diameters, lengths, head geometries, and thread forms are supported for both prototype and production orders.

Head: Hex · Socket · Carriage · Flat · Custom Thread: Metric · UNC · UNF · BSW Finish: Zinc · Black Oxide · Dacromet · Plain
Diameter Range M3 – M64 · #4 – 2 1/2"
Length Range 5mm – 500mm · Custom
Head Styles Hex, Socket Cap, Carriage, Flat, Custom
Thread Classes 6g / 2A · Fine or Coarse
Materials Carbon Steel (4.8, 8.8, 10.9, 12.9) · Stainless Steel (A2, A4) · Custom Alloys
Head Style Selection
⬡ Hex Head Standard external hex for high torque
◉ Socket Cap Internal hex for recessed applications
◯ Flat Countersunk Flush finish for smooth surfaces
▣ Carriage Square neck for anti-rotation
⊗ Custom Geometry Special profiles to your drawing
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Thread Configuration Options

Metric ISO standard coarse/fine, M3 – M64
UNC / UNF Unified coarse/fine, #4 – 2 1/2"
BSW Whitworth thread forms available
Custom Non-standard pitches · multi-start · left-hand
Applications
Heavy Machinery Structural Steel Automotive Drivetrain Industrial Pumps Conveyor Systems Wind Turbines Bridge Construction
custom manufacturing Bespoke Bolt Solutions Diameter · Length · Head Style · Thread Form · Material Grade — all configurable to your engineering requirements. Prototype to high-volume · Full testing & certification
ISO 4014 ISO 4017 DIN 933 Custom Threads Full Traceability

Related Products

Zhejiang Donghe Machinery Technology Co., Ltd.

 

Zhejiang Donghe Machinery Technology Co., Ltd. offer Wholesale Machine bolts Manufacturers. Our company passed the ISO9001:2000 quality management certification system standard in 2017 and is an enterprise with self-operating import and export rights.
Our company produces various international industrial standard products, including Chinese GB standards, German DIN standards, American ANSI standards, British B standards, and so on. In addition, our company can customize various non-standard fasteners according to customer requirements. The products are exported to Europe, Australia, Africa, the United States, and other regions. We always provide customers with good product and technical support, and sound after-sales service.

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