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3.9 x 25

Self-Tapping Countersunk A2 Stainless Steel Screws - 3.9 x 25
S/Tapping Screw PZ2 CSK A2 SS _x000D_

Used for stitching metal or attaching to metal. A pre-drilled hole is required. Manufactured from A2 Stainless Steel for use where ultimate corrosion resistance. Stainless steel must be used where there is corrosive environment and/or the base material has inherent corrosive characteristics.
£ 6.25 6.25 GBP
Window Fabrication Screws Friction Stay Shallow Pan Countersunk PH Self-Tapping Self-Drilling Point Zinc - 3.9 x 25
S/Drill PVC Friction Screw BZP_x000D_

For attaching friction stays with countersunk holes to steel reinforced PVCu frames.
£ 21.28 21.28 GBP
Window Fabrication Screws Friction Stay Pan PH Self-Tapping Thread Self-Drilling Point Martensitic Stainless Steel & Silver Organic - 3.9 x 25
S/Drill PVC Friction Screw S/S_x000D_

For attaching friction stays with countersunk holes to steel reinforced PVCu frames. Stainless steel should be used where there is a corrosive environment.
£ 64.85 64.85 GBP
Window Fabrication Screws Countersunk PH Self-Tapping Self-Drilling Point Zinc - 3.9 x 25
S/Drill PVC Screw CSK - BZP_x000D_

Multiple uses for fitting a variety of hardware to frames where there is a steel or aluminium reinforcement present.
£ 17.37 17.37 GBP
Window Fabrication Screws Countersunk PH Self-Tapping Self-Drilling Point Yellow - 3.9 x 25
S/Drill PVC Screw CSK - ZYP_x000D_

Multiple uses for fitting a variety of hardware to frames where there is a steel or aluminium reinforcement present.
£ 17.37 17.37 GBP
Window Fabrication Screws Countersunk PH Self-Tapping Thread Self-Drilling Point Martensitic Stainless Steel & Silver Organic - 3.9 x 25
S/Drill PVC Screw CSK - S/S_x000D_

Multiple uses for fitting a variety of hardware to frames where there is a steel or aluminium reinforcement present. Stainless steel should be used where there is a corrosive environment.
£ 64.04 64.04 GBP