Bronze & Brass Fasteners Pty. Ltd.
133032 - Silicon Bronze Machine Screw Slotted Flat Head- 5/16 - 18 UNC x 5"
133032 - Silicon Bronze Machine Screw Slotted Flat Head- 5/16 - 18 UNC x 5"
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A countersunk metal thread machine screw with a countersunk/flat head and slot drive, that can either fastened with a nut and washer or into a female thread or component.
With a flat or countersunk head, these screws are designed to recess into the parent and finish flush with the surface.
Manufactured from silicon bronze, it provides outstanding resistance to seawater corrosion, atmospheric oxidation, and chemical exposure throughout its operational lifespan without requiring protective coatings or maintenance interventions — critical for marine installations, offshore equipment, and coastal infrastructure.
Screw Size Chart
| Head Diameter | 18.5 mm |
| Head Height | 6.8 mm |
| Slot Drive | mm |
| Slot Depth | mm |
| Countersink Angle | 90 degrees |
| TPI | 18 |
| Plain Shank Diameter | 9.3 mm |
| Outside Thread Diameter | 9.26 mm |
| Finish | Mill Finish |
| Metric Equivalent* | M8 |
| Material | Silicon Bronze |
| Thread Length | 63mm |
| Length | 125mm |
*Equivalent size, incompatible thread, may be interchangeable
Applications
| Deck Winches | Crane Systems |
| Hydraulics | Brake Pads |
| Brake Winches | Slide Wear Pads |
| Drilling Rigs | Tug Boats |
| Electronics | Female threaded components |
| Marine | Wooden Boats |
| Aerospace | non-magnetic non sparking |
Manufactured for Bronze and Brass Fasteners Pty Ltd by Yushung Metal Products Co., Ltd.
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