GB836 Small Head Knurled Screws
When installation space is limited, the size of the screw head can make a noticeable difference. GB 836 Small Head Knurled Screws are designed with a compact knurled head that provides a practical grip while taking up less space around the fastening point.
Unlike larger knurled thumb screws, the smaller head of GB 836 makes it easier to use the fastener in compact mechanical assemblies, fixtures, instruments, and equipment where surrounding components leave limited room for operation. The knurled surface also allows convenient hand adjustment when a connection needs to be installed, removed, or adjusted regularly. GB/T 836-1988 covers metric thread sizes from M1.6 to M6, with different standard lengths available depending on the thread diameter. We can supply standard GB 836 sizes as well as customized materials, lengths, and finishes according to the requirements of your application.
Specification:
The defining feature of GB 836 Small Head Knurled Screws is their compact knurled head. The smaller head profile provides a practical gripping surface without taking up unnecessary space, making the screw suitable for assemblies where both accessibility and compact dimensions matter.
GB/T 836-1988 covers metric sizes from M1.6 to M6, with the head and thread dimensions specified for each nominal size. The external thread is manufactured to a 6g tolerance, while the complete dimensional requirements are controlled according to the applicable standard. Material selection can be matched to the working environment and assembly requirements. We can supply carbon steel as well as stainless steel options including A1, A2, and A4 grades. Surface finishes such as plain, zinc plating, or other customer-specified treatments can also be provided.
| Item | Specification |
|---|---|
| Product Type | Small Head Knurled Screw |
| Size Range | M1.6-M6 |
| Thread | Metric |
| Thread Tolerance | 6g |
| Property Class | 4.8, A1-50,C4-50 |
| Mechanical Property Standard | ISO898-1,ISO3506-1 |
| Material | Carbon Steel, Stainless Steel |
| Surface Treatment | Zinc Plated,Bright Finish,Passivation |
Dimension Chart of GB836 Small Head Knurled Screws :
The compact head is one of the main dimensional features of GB 836 Small Head Knurled Screws. The dimension chart covers the key measurements needed to select the correct screw, including thread diameter, knurled head diameter, head height, thread length, and overall length. GB/T 836-1988 covers metric sizes from M1.6 to M6, with the corresponding head and thread dimensions defined for each size. The smaller head diameter helps reduce the space occupied around the fastening point while retaining enough surface for manual operation.
| Mon | M1.6 | M2 | M2.5 | M3 | M4 | M5 | M6 |
| P | 0.35 | 0.4 | 0.45 | 0.5 | 0.7 | 0.8 | 1 |
| dk max | 3.5 | 4 | 5 | 6 | 7 | 8 | 10 |
| dk min | 3.32 | 3.82 | 4.82 | 5.82 | 6.78 | 7.78 | 9.78 |
| k max | 10 | 11 | 11 | 12 | 12 | 13 | 13 |
| k min | 9.78 | 10.73 | 10.73 | 11.73 | 11.73 | 12.73 | 12.57 |
| r min | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 |
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Application of GB836 Small Head Knurled Screws:
Limited Installation Space
GB 836 Small Head Knurled Screws are suitable for assemblies where space around the fastening point is limited. The smaller knurled head helps reduce interference with nearby components, edges, brackets, and housings.
Small Components and Mechanisms
The compact head makes GB 836 suitable for small mechanical components, adjustment points, retainers, guides, and removable parts where a larger thumb screw would appear oversized or take up unnecessary space.
Hand-Operated Fastening
GB 836 provides a practical balance between compact dimensions and manual operation. The knurled surface allows convenient hand tightening and loosening, making it suitable for covers, access points, and components that require occasional adjustment or removal.