Nails, Screws, Fasteners

The Sirius Set Screws High Tensile 8.8 Grade in M20 x 60mm is a large-diameter fastener for heavy structural and industrial connections. The M20 thread provides substantial clamping force, and the 60mm length suits standard heavy-section assemblies. Features and Benefits: • High tensile Grade 8.8 steel construction • Fully threaded for maximum thread engagement • Hexagon head for use with spanners or sockets • Precision metric thread for accurate fit • Suitable for heavy structural and industrial use Specifications: Size: M20 Length: 60mm Qty: Pack of 1 Contents: Pack of 1

The Sirius High Tensile 8.8 Grade Bolt in M12 x 160mm provides an extended grip for deep structural connections and heavy engineering assemblies. Grade 8.8 high tensile steel delivers consistent clamping strength and reliable performance in demanding load-bearing applications. Features and Benefits: • Grade 8.8 high tensile steel construction • Precision rolled threads for secure fit • Suitable for use with matching nuts and washers • Ideal for engineering, construction and industrial use Specifications: Size: M12 Length: 160mm Qty: Pack of 1 Contents: Pack of 1

This Sirius 12.9 Grade Socket Head Cap Screw in M14 x 45mm is partially threaded, providing improved shear strength for heavy engineering and structural applications requiring a mid-length M14 fastener. Features and Benefits: • Grade 12.9 alloy steel construction • Durable black finish • Hex socket drive for high torque tightening • Partially threaded for improved shear strength Specifications: Diameter: M14 Length: 45mm Qty: Pack of 1 Contents: Pack of 1

The Sirius Set Screws High Tensile 8.8 Grade in M16 x 100mm is a long heavy-duty M16 fastener for deep structural and industrial applications. The 100mm length ensures maximum thread engagement through very thick steel or composite sections. Features and Benefits: • High tensile Grade 8.8 steel construction • Fully threaded for maximum thread engagement • Hexagon head for use with spanners or sockets • Precision metric thread for accurate fit • Suitable for heavy structural and industrial use Specifications: Size: M16 Length: 100mm Qty: Pack of 1 Contents: Pack of 1

This M8 x 80mm Sirius Grade 10.9 Socket Countersunk Screw BZP is among the longest M8 options, suited to deep structural fastenings and multi-layer assemblies in heavy engineering and industrial applications where extended reach without increasing thread diameter is required. Features and Benefits: • Grade 10.9 high-tensile steel construction • BZP finish for corrosion resistance • 90° countersunk head for a flush finish • Hex socket drive reduces cam-out risk • Precision rolled threads for secure fastening Specifications: Size: M8 Length: 80mm Qty: Pack of 1 Contents: Pack of 1

This variant of the Sirius 12.9 Grade Socket Head Cap Screws is sized at 1/2 UNC diameter x 2-1/2" length, supplied in a pack of 50. Suitable for deep through-bolt applications and multi-layer heavy assemblies where substantial shank length is needed alongside the strength of a 1/2 UNC Grade 12.9 fastener. Features and Benefits: • Grade 12.9 high tensile alloy steel construction • UNC thread for secure, compatible fastening • Internal hex socket head for high torque drive • Compact head profile for use in tight spaces • Precision-machined threads for consistent performance Specifications: Diameter: 1/2 UNC Length: 2-1/2" Qty: Pack of 50 Contents: Pack of 50

The Sirius 10.9 Grade Socket Button Head Screw in M12 x 35mm is designed for deep structural fixings requiring the superior clamping force of an M12 thread. The 35mm length suits thick-section engineering assemblies, heavy frames, and industrial machinery components where maximum strength and engagement are essential. Features and Benefits: • 10.9 grade alloy steel for high tensile strength • Low-profile domed button head for a flush, clean finish • Hexagon socket drive for secure, positive engagement • Heat-treated for durability in demanding applications Specifications: Size: M12 Length: 35mm Qty: Pack of 1 Contents: Pack of 1

Sirius A2 304 Stainless steel hexagon coach screws. Specifications • Diameter: 8mm • Length: 75mm

This Sirius Cap Head Socket Screw is size M10 x 60mm, supplied as a single screw. The M10 thread at 60mm length is designed for heavy structural and industrial applications requiring a long, strong fastener capable of passing through thick assemblies with maximum clamping force and corrosion resistance. Features and Benefits: • A2 304 stainless steel for excellent corrosion resistance • Cylindrical cap head for a professional finish • Hex socket drive for high torque installation • Precision metric thread for secure fastening • Suitable for indoor, outdoor and humid environments Specifications: Size: M10 Length: 60mm Qty: Pack of 1 Contents: Pack of 1

The Sirius Set Screws High Tensile 8.8 Grade in M16 x 75mm is suited to deeper heavy-duty M16 structural connections in civil engineering, fabrication and industrial plant where both diameter and length are critical to performance. Features and Benefits: • High tensile Grade 8.8 steel construction • Fully threaded for maximum thread engagement • Hexagon head for use with spanners or sockets • Precision metric thread for accurate fit • Suitable for heavy structural and industrial use Specifications: Size: M16 Length: 75mm Qty: Pack of 1 Contents: Pack of 1

This Sirius 12.9 Grade Socket Head Cap Screw in M14 x 30mm is a fully threaded fastener suited to engineering assemblies and industrial applications requiring a compact, high-strength M14 fixing. Features and Benefits: • Grade 12.9 alloy steel construction • Durable black finish • Hex socket drive for high torque tightening • Fully threaded for maximum thread engagement Specifications: Diameter: M14 Length: 30mm Qty: Pack of 1 Contents: Pack of 1

Sirius A2 304 Stainless steel hexagon coach screws. Specifications • Diameter: 10mm • Length: 65mm

This M12 x 55mm Sirius Grade 12.9 Socket Head Cap Screw in BZP finish is a medium-to-long, heavy-duty fastener for structural and industrial engineering applications. The M12 thread and 55mm length deliver high-load clamping for thick structural components and assemblies requiring a large-diameter, deep-reach socket head cap screw. Features and Benefits: • Grade 12.9 alloy steel for exceptional tensile strength • BZP finish for corrosion resistance in dry environments • Precision hex socket drive minimises cam-out risk • Compact cylindrical head for space-restricted applications • Compatible with standard hex keys and hex bit sockets Specifications: Size: M12 Length: …

This variant of the Sirius 12.9 Grade Socket Head Cap Screws is sized at 1/2 UNC diameter x 1-1/2" length, supplied in a pack of 100. Provides deep thread engagement in a 1/2 UNC diameter, making it an excellent choice for flanged connections, thick-plate assemblies and vibration-prone environments. Features and Benefits: • Grade 12.9 high tensile alloy steel construction • UNC thread for secure, compatible fastening • Internal hex socket head for high torque drive • Compact head profile for use in tight spaces • Precision-machined threads for consistent performance Specifications: Diameter: 1/2 UNC Length: 1-1/2" Qty: Pack of 100 Contents: Pack of 100

This Sirius Countersunk Machine Screw is an M8 x 50mm slotted countersunk fixing manufactured from A4 316 stainless steel. The M8 x 50mm length is suited to deep fastenings in thick materials and structural applications in marine, chemical processing and harsh industrial environments where strength and long-term corrosion resistance are critical. Compatible with a flat-blade screwdriver. Features and Benefits: • A4 316 stainless steel construction • Excellent corrosion and saltwater resistance • Flush-fitting countersunk head • Slotted drive for flat-blade screwdriver • Precision metric thread Specifications: Diameter: M8 Length: 50mm Qty: Pack of 1 Contents: Pack of …

This Sirius 12.9 Grade Socket Head Cap Screw in M10 x 90mm is partially threaded, providing excellent shear strength for demanding structural and engineering applications requiring a long M10 fixing. Features and Benefits: • Grade 12.9 alloy steel construction • Durable black finish • Hex socket drive for high torque tightening • Partially threaded for improved shear strength Specifications: Diameter: M10 Length: 90mm Qty: Pack of 1 Contents: Pack of 1

This Sirius 12.9 Grade Socket Head Cap Screw in M14 x 50mm is partially threaded, providing improved shear strength for structural and heavy engineering applications requiring a mid-length M14 fastener. Features and Benefits: • Grade 12.9 alloy steel construction • Durable black finish • Hex socket drive for high torque tightening • Partially threaded for improved shear strength Specifications: Diameter: M14 Length: 50mm Qty: Pack of 1 Contents: Pack of 1

This M16 x 30mm Sirius Grade 12.9 Socket Head Cap Screw in BZP finish is a short, large-diameter, heavy-duty fastener for structural and industrial engineering applications. The M16 thread and compact 30mm length deliver extremely high clamping force in shallow-depth joints where a large-diameter, high-tensile socket head screw is required. Features and Benefits: • Grade 12.9 alloy steel for exceptional tensile strength • BZP finish for corrosion resistance in dry environments • Precision hex socket drive minimises cam-out risk • Compact cylindrical head for space-restricted applications • Compatible with standard hex keys and hex bit sockets Specifications: Size: M16 …

The Sirius Socket Set Grub Screw in M10 x 35mm is a precision-engineered A2 304 stainless steel headless fastener. The M10 x 35mm size is suited to heavy-duty applications requiring a longer grub screw for deep thread engagement in large shaft collars or wide hubs. The internal hex socket drive provides high-torque installation capability and the headless design ensures a clean fit. Features and Benefits: • A2 304 stainless steel construction • Excellent corrosion and rust resistance • Headless flush or recessed installation • Internal hex socket drive • Precision metric threads • Sold individually Specifications: Size: M10 Length: 35mm Qty: Pack of 1 Material: …

This Sirius Pan Head Machine Screw is an M6 x 50mm slotted fastener made from A2 304 stainless steel. The 50mm length delivers deep, secure fixing for demanding structural, marine and outdoor applications. The M6 diameter provides confident clamping strength for heavier assemblies and thicker substrates. Features and Benefits: • A2 304 stainless steel — corrosion resistant • Pan head with broad bearing surface • Slotted drive for flat-blade screwdriver • Precision metric threads • Suitable for indoor and outdoor use Specifications: Diameter: M6 Length: 50mm Qty: Pack of 1 Contents: Pack of 1

This Sirius 12.9 Grade Socket Head Cap Screw in M8 x 150mm is partially threaded, suited to the most demanding structural and engineering applications requiring maximum length in an M8 fastener. Features and Benefits: • Grade 12.9 alloy steel construction • Durable black finish • Hex socket drive for high torque tightening • Partially threaded for improved shear strength Specifications: Diameter: M8 Length: 150mm Qty: Pack of 1 Contents: Pack of 1

The Sirius Set Screws High Tensile 8.8 Grade in M20 x 40mm is a compact large-diameter fastener for shallow but high-load structural connections in heavy engineering and fabrication where an M20 thread is required at minimal length. Features and Benefits: • High tensile Grade 8.8 steel construction • Fully threaded for maximum thread engagement • Hexagon head for use with spanners or sockets • Precision metric thread for accurate fit • Suitable for heavy structural and industrial use Specifications: Size: M20 Length: 40mm Qty: Pack of 1 Contents: Pack of 1

This Sirius 12.9 Grade Socket Head Cap Screw in M6 x 150mm is partially threaded, suited to structural and engineering applications requiring maximum length in an M6 fastener. Features and Benefits: • Grade 12.9 alloy steel construction • Durable black finish • Hex socket drive for high torque tightening • Partially threaded for improved shear strength Specifications: Diameter: M6 Length: 150mm Qty: Pack of 1 Contents: Pack of 1

This M12 x 20mm Sirius A2 304 Stainless Steel Countersunk Head Socket Screw is a short, large-diameter fastener for applications requiring maximum thread strength in a compact length. The M12 thread provides very high clamping force, ideal for heavy flanged joints, base plates and structural panels. Features and Benefits: • A2 304 stainless steel for excellent corrosion resistance • 90° countersunk head for a flush finish • Hex socket drive for high torque installation • Precision metric thread • Suitable for indoor, outdoor and humid environments Specifications: Size: M12 Length: 20mm Qty: Pack of 1 Contents: Pack of 1