Bolts - General Stores, Hardware and Tools
Marine general-purpose bolts are threaded fasteners used for securing machinery, pipe supports, deck fittings, structural components, and shipboard equipment. Selection depends on thread type, diameter, length, strength grade, material, corrosion resistance, and service environment.
ProShipWorks provides end-to-end support to source and supply Bolts for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.
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Product Information
| Product Name | Bolts |
|---|---|
| Product Category | General Stores, Hardware and Tools |
| Product Reference | 240 |
| Brands / Manufacturers | Würth, Bossard, Unbrako |
| Unit of Measure | Piece |
Key Features
| Key Feature |
|---|
| 1. Hex-head, socket-head, carriage, flange, and stud configurations |
| 2. Metric and Unified thread forms |
| 3. Carbon steel, alloy steel, stainless steel, and corrosion-resistant materials |
| 4. Available in multiple strength grades and surface finishes |
| 5. Used with compatible nuts, washers, locking devices, and anti-seize compounds |
Applications of Bolts
| Application |
|---|
| 1. Machinery foundations, brackets, guards, and equipment mounting |
| 2. Pipe supports, cable trays, ventilation systems, and deck hardware |
| 3. Ship repair, maintenance, fabrication, and general onboard fastening |
Models & Manufacturers
| Model | Manufacturer |
|---|---|
| ISO 4014 Hexagon Head Bolt, Partially Threaded | Multiple qualified manufacturers |
| ISO 4017 Hexagon Head Screw, Fully Threaded | Multiple qualified manufacturers |
| ASTM A193 Grade B7 Stud Bolt | Multiple qualified manufacturers |
| ASTM A320 Grade L7 Low-Temperature Stud Bolt | Multiple qualified manufacturers |
Technical Specifications
| Model | Specification | Value | Unit |
|---|---|---|---|
| ISO 4014 | Product type | Hexagon head bolt, partially threaded | — |
| ISO 4017 | Product type | Hexagon head screw, fully threaded | — |
| ASTM A193 B7 | Material | Chromium-molybdenum alloy steel | — |
| ASTM A320 L7 | Service | Low-temperature bolting | — |
| General marine bolt | Common materials | Carbon steel, alloy steel, A2 or A4 stainless steel | — |
Standards, Certifications & Class Approval
Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.
| Applicable Standards & Certification | Common dimensional standards include ISO 4014, ISO 4017, ISO 898-1, and ASME B18.2.1. Material and bolting specifications may include ASTM A193, ASTM A194, ASTM A320, ASTM F593, and ASTM F594. Product certification depends on material, application, and purchase requirements. |
|---|---|
| Class Approval | General-purpose bolts are not automatically classification-approved. Bolts used in classed machinery, pressure, structural, or safety-critical applications may require documentation or acceptance by DNV, ABS, Lloyd's Register, Bureau Veritas, or ClassNK according to the approved design and vessel rules. |
Installation, Maintenance & Safety Information
| Installation Notes | Verify diameter, length, thread form, material, strength grade, and corrosion condition before installation. Use compatible nuts and washers. Clean mating surfaces, apply approved anti-seize where suitable, and tighten to the specified torque using a calibrated tool. |
|---|---|
| Maintenance Tips | Inspect for corrosion, thread damage, loosening, deformation, and loss of coating during planned maintenance. Replace bolts showing cracking, severe corrosion, damaged threads, or elongation. Do not reuse bolts where the equipment maker or applicable standard prohibits reuse. |
| Safety Notes | Use the specified grade and never substitute lower-strength fasteners. Follow approved torque values and vessel procedures. Wear eye and hand protection, control dropped-object hazards, and isolate machinery before removing load-bearing or critical fasteners. |
Request a Quote for Bolts
Contact ProShipWorks for marine or industrial product sourcing, quotations and delivery.
- Vessel name and IMO number
- ETA / vessel schedule
- Berth or vessel location
- Required quantity
- Preferred delivery window
- Shipping agent contact details
Other General Stores, Hardware and Tools Products
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