Sgwâr countersunk hunan tapio sgriw
| Disgrifiad | Deunydd | Arwyneb | Maint |
| Sgwâr countersunk hunan tapio sgriw | dur carbon | sinc ar blatiau | 6#(3.5mm), 8#(4.2mm), 10#(4.8mm) |
| Disgrifiad | Deunydd | Arwyneb | Maint |
| Sgwâr countersunk hunan tapio sgriw | dur carbon | sinc ar blatiau | 6#(3.5mm), 8#(4.2mm), 10#(4.8mm) |