M3 Brass Hex Sacer Screw Bolt Male Female Metric Connection Fastener
Spacer screws are also named standoff or spacer bolt that has a two threads designs but are same specification as both threads must to be jointed each other . outer threads are placed under hexagonal body , the thread length of outer thread must to be shorter than the depth of inner thread for completely inserted into .
As conduction requirement , spacer screw is popularly made from brass material . and for some applications , the surface of spacer screw is coated by nickel finish .
Specific dimensions
Dimensions for spacer screws can be customized according to application , most specification is M3 , M4 and M5 .
| Thread |
|
| Hex length |
|
| Hex width |
|
| Thread length |
|
| Hole depth |
|
| Pitch |
|
Mechanical Properties
| Hardness ( HV ) |
150 |
Yield Strength ( Mpa ) |
250 |
Elongation ( % ) |
15 |
| Tensile Strength ( Mpa ) |
385 |
Torque |
5 |
Reduction Area ( % ) |
20 |
Features
Compared to carbon steel material , brass spacer screws with more advantages
1. Good electricity conduct
2 . Resistant wear
3 . Good ductility
4 . Corrosion resistance
5 . Precise dimensions
About finish ( coating )
Normally , brass spacer screw should be applied a film of coating nickel after finished basic profile , nickel finish helps surface of screws to become more smooth and increase service time on corrosion resistance and improve hardness . Of course , for brass sapcer screws without nickel finish that not make a effect on use .
About customization
Spacer screws are customized for dimension , material , finish and basic profile . eg , we can provide carbon steel ,stainless steel , copper , aluminum materials etc .
About lead time
For small order , we can ship goods out in 5 days , final delivery has to be subjected to material , finish and quantity of order .
About packing
Mostly , spacer screws are packed 100 pcs each bag and 50 bags each carton . carton dimension is 20 x 25 x 15 cm , for big quantity , there is a standard pallet for easy carry , Final packing data should be subject to specific dimensions of set screw and packing types . Besides ,we accept custom packing for your special requirements .
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