Screws Built for Secure and Precise Fastening
Grade One Fasteners supplies industrial screws engineered for reliable fastening, precise fit and consistent performance across demanding engineering and industrial applications.
Available in multiple materials, grades, sizes, head styles and thread configurations, our screws can be supplied to applicable international standards and customer-specific requirements.
Precision Fit
Accurate dimensions and consistent threads for dependable fit and secure assembly.
Thread Options
Available with different thread forms, pitches and configurations for varied applications.
Material Options
Available in carbon steel, alloy steel, stainless steel and other material options.
Application Ready
Suitable for industrial, engineering, structural and equipment fastening applications.
Engineered Screws for Every Application
Explore our range of industrial screws available in different head styles, materials, grades, thread configurations and sizes for demanding fastening applications.
Machine Screws
Precision-threaded screws designed for secure fastening into tapped holes and assemblies.
View Product →Self Tapping Screws
Thread-forming screws designed to create their own mating threads during installation.
View Product →Self Drilling Screws
Drill-point screws designed for efficient fastening through metal and other materials.
View Product →Wood Screws
Threaded fastening screws designed for reliable installation into timber and wood-based materials.
View Product →Materials, Grades & Standards
Materials Available
- Carbon Steel
- Alloy Steel
- Stainless Steel (304, 316, 316L)
- Duplex & Super Duplex Steel
- Brass
- Aluminium
- Special Alloys
Grades
- 4.6 / 4.8
- 5.6 / 5.8
- 8.8 / 10.9 / 12.9
- A2-70 / A4-70 / A4-80
- B7 / B16
- 2H / DH
- Other Custom Grades
Standards
- ASME B18.6.3
- ASME B18.6.4
- ASTM A307
- ASTM F593 / ASTM F837
- DIN 7981 / DIN 7982
- ISO / BS / GB / JIS Standards
- As per Customer Specification
Screw Size Range & Dimensions
Industrial screws are available in a wide range of diameters, lengths, thread configurations and head styles to suit different fastening requirements.
Standard & Custom Sizes
Screws can be supplied in different diameters, lengths, thread forms, head styles and materials according to applicable standards, drawings and customer requirements.
Typical Screw Dimensions
| Screw Size | Nominal Diameter | Standard Length Range | Thread Configuration |
|---|---|---|---|
| M4 | 4 mm | 6 – 50 mm | As Standard |
| M5 | 5 mm | 8 – 60 mm | As Standard |
| M6 | 6 mm | 10 – 80 mm | As Standard |
| M8 | 8 mm | 12 – 100 mm | As Standard |
| M10 | 10 mm | 15 – 120 mm | As Standard |
| M12 | 12 mm | 20 – 150 mm | As Standard |
| M16 | 16 mm | 25 – 200 mm | As Standard |
| M20+ | 20 mm+ | 30 – 300 mm+ | As Standard / Custom |
Screw Applications Across Industries
Our industrial screws are used wherever reliable, precise and secure fastening is required across demanding engineering and industrial applications.
Oil & Gas
Used in pipelines, equipment, structural assemblies and demanding oil & gas installations.
Power Generation
Suitable for equipment, machinery, structural connections and power plant applications.
Engineering
Reliable screw solutions for machinery, fabricated assemblies and engineering equipment.
Construction
Used in structural assemblies, steelwork, equipment and construction fastening requirements.
Automotive
Suitable for vehicle components, assemblies, machinery and automotive engineering applications.
Shipbuilding
Used for marine structures, equipment and shipbuilding fastening applications.
Petrochemicals
Designed for fastening requirements in process plants, equipment and petrochemical facilities.
Infrastructure
Reliable screw solutions for infrastructure, heavy structures and large-scale projects.
Application Requirement? Tell us your screw type, size, material, grade and application requirements for the right fastening solution.
Discuss Your Requirement →Get the Right Screw for Your Application
Share your screw type, size, material, grade, thread configuration and quantity. Our team can help you identify the right fastening solution for your application requirements.