GB835 Knurled Screws
GB 835 Knurled Screws are designed with a low-profile knurled head that provides a convenient gripping surface for manual tightening and adjustment. The compact head design is suitable for applications where components need to be secured, released, or adjusted by hand without requiring a separate tool.
Manufactured according to GB/T 835-1988, these screws are available in metric sizes from M1.6 to M10. The standard defines the main dimensions of the knurled head, threaded shank, and screw length to provide consistent fit and assembly performance. GB 835 Knurled Screws are commonly used in mechanical assemblies, fixtures, instruments, equipment, covers, panels, and removable components where convenient manual operation and a compact fastening solution are required. Different materials, surface finishes, and customized dimensions can be supplied according to customer requirements.
Specification:
GB 835 Knurled Screws are manufactured according to GB/T 835-1988, which specifies the dimensions and technical requirements for knurled screws with a low-profile head. The standard covers the main dimensions of the knurled head, threaded shank, and screw length, providing consistent dimensions for mechanical assembly and fastening applications.
The screws use metric threads with a 6g external thread tolerance. Steel versions are specified with property class 4.8, while stainless steel versions are available in A1-50, A2-50, C4-50 property classes according to the applicable material requirements. The standard also specifies Grade A product tolerances and straight knurling requirements.
| Item | Specification |
|---|---|
| Standard | GB835 |
| Product Type | Knurled Screw |
| Head Type | Low-Profile Knurled Head |
| Size Range | M1.6-M10 |
| Thread | Metric |
| Thread Standard | ISO261 |
| Material | Carbon Steel,Stainless Steel |
| Property Class | 4.8,8.8 A2 A4 |
| Knurling | Straight Knurling |
| Surface Treatment | Zinc Plated,Black Oxidation,Bright Finish |
| Inspection | Dimensions,Thread,Mechanical Property,Material,Coating |
Dimension Chart of GB835 Knurled Screws:
GB 835 Knurled Screws are available in metric sizes from M1.6 to M10. The dimension chart covers the main dimensions required for proper installation, including nominal thread diameter, knurled head diameter, head height, thread length, and overall length.
The low-profile knurled head provides a compact gripping surface while reducing the space required above the assembled component. The thread dimensions and external thread tolerance are specified according to the applicable ISO261,ISO965.
| Mon | M1.6 | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 |
| P | 0.35 | 0.4 | 0.45 | 0.5 | 0.7 | 0.8 | 1 | 1.25 | 1.5 |
| dk max | 7.22 | 8.22 | 9.22 | 11.27 | 12.27 | 16.27 | 20.33 | 24.33 | 30.33 |
| dk min | 6.78 | 7.78 | 8.78 | 10.73 | 11.73 | 15.73 | 19.67 | 23.67 | 30 |
| k max | 4.7 | 5 | 5.5 | 7 | 8 | 10 | 12 | 16 | 20 |
| k min | 4.52 | 4.82 | 5.32 | 6.78 | 7.78 | 9.78 | 11.57 | 15.57 | 19.48 |
| r min | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.4 | 0.4 |
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Application of GB835 Knurled Screws:
Mechanical Assemblies
GB 835 Knurled Screws are suitable for mechanical assemblies where components need to be secured and released frequently. The knurled head allows convenient manual operation without requiring a separate screwdriver or wrench.
Compact Equipment
The low-profile head makes these screws suitable for compact equipment and assemblies with limited installation space, where a higher screw head may interfere with surrounding components.
Fixtures and Jigs
GB 835 Knurled Screws can be used in fixtures, jigs, tooling, and positioning mechanisms where operators need to make quick adjustments or remove components during setup and maintenance.
Covers and Panels
These screws are suitable for securing covers, panels, guards, access plates, and removable components, allowing convenient hand removal when regular access is required.
Instruments and Control Equipment
The compact design and manual operation make GB 835 screws suitable for instruments, control equipment, laboratory equipment, and other mechanical devices requiring tool-free fastening or adjustment.