Metric Pan head machine screws - Slotted DIN 85 BS 4183 ISO 1580 Materials/Finishes: Steel 4.8/Zinc & clear Stainless steel/Self colour Brass/Self colour Dimensions Thread (d) M2 M2.5 M3 M3.5 M4 M5 M6 M8 D max 4 5 6 7 8 10 12 16 H max 1.3 1.5 1.8 2.1 2.4 3 3.6 4.8 w (slot width) nom 0.7 0.8 1 1.2 1.4 1.5 1.8 2.2 t (slot depth) nom 0.5 0.6 0.7 0.8 1 1.2 1.4 1.9 NB: Generally our preferred stock is to DIN - if dimensions are critical to your application you should check with us prior to ordering. Preferred lengths Thread (d) M2 Length (L) M2.5 M3 M3.5 M4 M5 M6 4 5 ST A2 6 ST A2 ST A2 BR ST A2 8 ST A2 ST A2 BR ST A2 BR ST A2 BR 10 ST A2 ST A2 BR ST A2 BR ST A2 BR ST A2 12 ST A2 ST A2 BR ST A2 BR ST A2 BR ST A2 BR 16 ST A2 BR ST A2 BR ST A2 BR ST A2 BR 20 ST A2 BR ST A2 BR ST A2 BR ST A2 BR 25 ST BR ST A2 BR ST A2 BR ST A2 BR 30 ST BR ST A2 BR ST A2 BR ST A2 BR 35 ST ST BR ST A2 BR ST A2 BR 40 ST ST BR ST BR ST BR 45 M8 50 60 65 ST - Steel, Zinc & clear - other finishes often available A2 - A2 Stainless steel, Self colour BR - Brass, Self colour