| Standard | DIN | Compatible Screw Size | M3, M4, M5 |
| material | Brass, Stainless Steel, Steel, Aluminium, Plastic | Type | Flat |
| Outer Diameter | Standard | Inside Diameter | 2.7 mm |
| Surface Treatment | Polished, Plain | Hardness | standard |
| style | Split, Wedge, Internal Tooth, External Tooth, Countersunk, Bonded | finish | Black, Zinc, Plain |
| Outside Diameter | DIY | Specifications | PW2.5*5*0.5 |
| Hardness | NO | Heat Treatment | non Hardening |
| Function | Connection,Fastening | Range of application | Cabinet, Sheet metal, motors. Building decoration etc. |
| Sample | Available free within 7days | Bulk lead time | 7~10days |
| Reliability test | mechanical dimentions, hardness test. salt spray endurance test | Standard | DIN, GB, ISO |