Stainless Steel Metal Shoulder Screws M5 Hexagonal Cup Socket Head Shoulder Bolt
Stainless Steel Metal Shoulder Screws M5 Hexagonal Cup Socket Head Shoulder Bolt
Cup head Shoulder Screw is made in a hexagonal socket and chamfer on the head , machine fine threads and flat point and different diameters from head to point .
Shoulder Screw is also known as Shoulder bolt , the diameter under head with two a shaft and a thread section , the shaft diameter is more bigger than the thread diameter and make a role of axis that close-fitting moving pieces operation .
Shoulder screws are made from stainless steel with polished surface for high heavy load . Besides ,
Shoulder screw can be made from alloy steel and brass material for different load requests .
Specification for shoulder screws from M3 to M6 for the popular applicaitons .
| d | M5 |
| d1 | 6.2 |
| D | 8 |
| L | 25 |
| H | 4 |
| S | 4 |
| L1 | 15 |
| L2 | 10 |
| t | 2.5 |
| P | 0.8 |
More sizes
| Size Metric | Thread length | Head Height | Head diameter | Shoulder Length | Shoulder diameter |
| d | L2 | H | D | L1 | d1 |
| M3X8 | 4 | 3.2 | 6 | 4 | 3.2 |
| M3X10 | 4 | 3.2 | 6 | 6 | 3.2 |
| M3X12 | 4 | 3.2 | 6 | 8 | 3.2 |
| M3X15 | 4 | 3.2 | 6 | 11 | 3.2 |
| M3.5X8 | 4.8 | 3.2 | 7 | 3.2 | 4 |
| M3.5X10 | 4.8 | 3.2 | 7 | 5.2 | 4 |
| M3.5X12 | 4.8 | 3.2 | 7 | 6.8 | 4 |
| M3.5X15 | 4.8 | 3.2 | 7 | 9.8 | 4 |
| M3.5X16 | 4.8 | 3.2 | 7 | 10.8 | 4 |
| M3.5X18 | 4.8 | 3.2 | 7 | 12.8 | 4 |
| M3.5X20 | 4.8 | 3.2 | 7 | 14.8 | 4 |
| M4X10 | 4.8 | 4 | 8 | 5.8 | 4.8 |
| M4X12 | 4.8 | 4 | 8 | 6.8 | 4.8 |
| M4X15 | 4.8 | 4 | 8 | 9.8 | 4.8 |
| M4X16 | 4.8 | 4 | 8 | 9.8 | 4.8 |
| M4X19 | 4.8 | 4 | 8 | 13.8 | 4.8 |
| M4X20 | 4.8 | 4 | 8 | 14.8 | 4.8 |
| M4X25 | 4.8 | 4 | 8 | 19.8 | 4.8 |
| M4X30 | 4.8 | 4 | 8 | 24.8 | 4.8 |
| M5X12 | 6.3 | 4.8 | 10 | 5.7 | 6.35 |
| M5X15 | 6.3 | 4.8 | 10 | 8.7 | 6.35 |
| M5X20 | 6.3 | 4.8 | 10 | 13.7 | 6.35 |
| M5X25 | 6.3 | 4.8 | 10 | 18.7 | 6.35 |
| M5X30 | 6.3 | 4.8 | 10 | 23.7 | 6.35 |
| M5X35 | 6.3 | 4.8 | 10 | 28.7 | 6.35 |
| M6X15 | 9 | 5.5 | 11 | 6 | 9.5 |
| M6X18 | 9 | 5.5 | 11 | 9 | 9.5 |
| M6X20 | 9 | 5.5 | 11 | 11 | 9.5 |
| M6X25 | 9 | 5.5 | 11 | 16 | 9.5 |
| M6X30 | 9 | 5.5 | 11 | 21 | 9.5 |
| M6X35 | 9 | 5.5 | 11 | 26 | 9.5 |
| M6X40 | 9 | 5.5 | 11 | 31 | 9.5 |
Tolerance for Shoulder Screws
The tolerances and sizes for shoulder screw are very strict for special application , especially the shoulder diameter must to be controlled as small as possible .
We take advanced machine to processed shoulder screw , the dimensions tolerances can be 0.01mm .
Finish for Shoulder Screws
| Finish | Characteristics |
| Zinc | Various color can be choosed and perfect on anti-corrosion |
| Nickel | Make the surface of the screws more bright and hardened and the performance of screws will be improved |
| Polish | Improving the brightness of surface but is inferior is not as zinc in anti-corrosion |
| Tin | It is very perfect to be anti-rust , and widely used to components |
| Brass | It is usually used with Nickel for more good anti-corrrosion. |
| Dacromet | Is used for screws with big sizes and can stop screws to be rusted long time even under bad surroundings . |
Features for Shoulder Screws
1 , High tensile strenth
2 , No Magnet
3 , Corrosion resistance
4 , Long service
5 , Easy to be operated
Package for Shoulder Screws
Packages are assorted and strong , we can arrange special packages according to your requirements , all Packed in Seaworthy or airworthy for Export .
In addition to , we supply more sizes with customzied designs for shoulder screws , and material covers carbon steel , Alloy steel etc , property class from 4.6 to 12.9 .
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.