Screws - General Stores, Hardware and Tools
Marine screws are threaded fasteners used for equipment installation, shipboard repairs, fabrication, piping supports, electrical fittings, and general maintenance. Common materials include stainless steel, galvanized carbon steel, and corrosion-resistant alloys.
ProShipWorks provides end-to-end support to source and supply Screws for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.
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Product Information
| Product Name | Screws |
|---|---|
| Product Category | General Stores, Hardware and Tools |
| Product Reference | 242 |
| Brands / Manufacturers | Würth, Hilti, SPAX |
| Unit of Measure | Piece |
Key Features
| Key Feature |
|---|
| 1. Available in machine, self-tapping, wood, and structural screw types |
| 2. Stainless steel grades commonly include A2 and A4 |
| 3. Metric and imperial thread sizes are available |
| 4. Various head styles include hex, pan, countersunk, and socket head |
| 5. Suitable coatings improve corrosion resistance in marine environments |
Applications of Screws
| Application |
|---|
| 1. Shipboard equipment and machinery installation |
| 2. Electrical, HVAC, and accommodation fittings |
| 3. General ship repair, fabrication, and maintenance |
Models & Manufacturers
| Model | Manufacturer |
|---|---|
| ISO 4017 / DIN 933 Hexagon Head Screw | |
| ISO 4762 / DIN 912 Socket Head Cap Screw | |
| ISO 7046 / DIN 965 Countersunk Head Screw | |
| ISO 7049 / DIN 7981 Pan Head Self-Tapping Screw |
Technical Specifications
| Model | Specification | Value | Unit |
|---|---|---|---|
| ISO 4017 / DIN 933 | Material | Stainless steel A2-70 or A4-80 | — |
| ISO 4762 / DIN 912 | Thread | Metric coarse thread, property class as specified | — |
| ISO 7046 / DIN 965 | Head type | Countersunk cross-recessed | — |
| ISO 7049 / DIN 7981 | Drive and point | Cross-recessed pan head, self-tapping | — |
| General marine screw | Corrosion protection | A4 stainless steel, hot-dip galvanized, or approved coating | — |
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 references include ISO 4017, ISO 4762, ISO 7046, ISO 7049, DIN 933, DIN 912, DIN 965, and DIN 7981. Material and mechanical properties may be specified under ISO 3506 for stainless steel fasteners and ISO 898-1 for carbon steel fasteners. |
|---|---|
| Class Approval | Individual general-purpose screws are normally not class-approved. Classification societies such as DNV, ABS, Lloyd's Register, Bureau Veritas, and ClassNK may require approved fasteners for specified structural, pressure-boundary, machinery, or safety-critical applications. |
Installation, Maintenance & Safety Information
| Installation Notes | Confirm diameter, length, thread, material, head type, and washer requirements before installation. Use compatible nuts and washers, clean mating threads, apply the specified tightening torque, and avoid mixing dissimilar metals without suitable isolation. |
|---|---|
| Maintenance Tips | Inspect periodically for corrosion, looseness, damaged heads, stripped threads, and missing washers. Replace fasteners showing significant corrosion or mechanical damage. Keep spare screws dry, clean, labeled, and separated by size and material. |
| Safety Notes | Use the correct grade and length for the application and never substitute general-purpose screws for specified structural or pressure-boundary fasteners. Wear eye protection during drilling or removal, control dropped objects when working aloft, and follow the vessel's torque and permit-to-work procedures. |
Request a Quote for Screws
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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