The over-sized head with the diamond-patterned grip finish allows the screw to be tightened or loosened without any external effort. This easy feature makes the screw an imperative part of those devices that require frequent removal and re-installation; for example, safety covers of electronic devices.
Besides safety covers for electronic gadgets, thumbscrews are also used in battery covers on many small electronic devices.A big advantage of the thumbscrew is that it does not fall out of the cover when the screw or bolt is loosened.
Several industrial machineries use thumbscrews as fasteners on machine covers, safety guards and other components that require frequent removal and reinstallation.
Product Description
| Product Name | Factory Direct Thumb Screws M4 |
| Size | M3.8x17.5 or customized |
| Material | Stainless steel, Carbon Steel, Aluminum, or based on customers' request |
| Color | Plating, clean, passivation, or customized |
| Head type | Flat head or customized |
| Application | Electronic gadgets, battery covers, and so on |
| Shipping | 15-25 working days |
| Business type | OEM offered |
| Our mission | Provide high quality products and excellant service |
Details of Thumb Screws M4 Stainless Steel Screws
Production Process Of Thumb Screws M4 Stainless Steel Screws
In industry, such as oil, gas and petrochemicals, choosing the right fasteners for the right application can be critical. For example, the bolts used to attach the mating flanges, or the screws used to connect the piping to the load-bearing wall, or the nuts and bolts used to join the disc-shaped ends of the reactor are critical to industry production. Choosing the right fasteners is also critical to the safety of the process and plant workers. Choosing the right fasteners will not cause attention. However, failure to select the right fastener for your application can cause problems from small leaks to catastrophic failures, which will certainly be noticed.
Why choose us
Shenzhen Lanejoy Technology Co., Ltd is a professional manufacturer supplying for lots of famous brands like Apple, Microsoft, and so on.
Bacically is produced by machines, so the deliery time can be insured.
Precautions for product use: There is an essential difference between stainless steel and carbon steel. Stainless steel has good ductility. If it is used improperly, the screw and nut can not be unscrewed. That is commonly known as "locked". Improving this situation can be considered mainly from the following aspects:
1. Choose the right product:
(1) Before using, confirm whether the mechanical properties of the product can meet the requirements of use (such as the tensile strength of the bolt and the safety load of the nut);
(2) The length of the bolt should be selected appropriately to tighten the nut and expose 1-2 thread.
2. Reduce the coefficient of friction:
(1) The thread must be kept clean;
(2) Add lubricant (such as 40# engine oil, butter) before use.
3. The correct way of operation:
(1) The nut must be screwed perpendicular to the axis of the screw, not to tilt;
(2) During the tightening process, the force must be uniform, and the force should not exceed the safe torque value (with the safety torque table);
(3) Use torque wrench or socket wrench as much as possible to avoid using adjustable wrench or electric wrench;
(4) It must be cooled when it is used at high temperature, and should not be rotated quickly during use, so as to avoid sudden rise in temperature and cause locking (such as electric wrench, etc.).