Metric Countersunk head machine screws - PoziDriv(R) DIN 965 BS 4183 ISO 7046 Materials/Finishes: Steel 4.8/Zinc & clear Stainless steel/Self colour Brass/Self colour Dimensions Thread (d) M1.6 M2 M2.5 M3 M3.5 M4 M5 M6 M8 H max (BS/DIN) 0.96 1.2 1.5 1.65 1.93 2.2 2.5 3 4.5 H max (ISO) - 1.2 1.6 1.65 2.35 2.7 2.7 3.3 4.65 recess (BS/DIN) 0 1 1 1 2 2 2 3 4 recess (ISO) - 0 1 1 2 2 2 3 4 D nom (BS) - - 5.5 6.3 7.35 8.4 10 12 16 D nom (DIN) 3.00 3.8 4.7 5.6 6.5 7.5 9.2 11 14.5 D nom (ISO) - 3.8 4.7 5.5 7.3 8.4 9.3 11.3 15.8 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) M1.6 Length (L) M2 M2.5 M3 M3.5 M4 M5 M6 M8 3 ST 4 ST ST ST A2 ST 5 ST ST ST A2 ST 6 ST ST ST A2 ST A2 A2 ST A2 ST 8 ST ST A2 ST A2 A2 ST A2 ST A2 ST 10 ST ST A2 ST A2 A2 ST A2 ST A2 ST A2 ST 12 ST ST A2 ST A2 A2 ST A2 ST A2 ST A2 ST 16 ST ST A2 ST A2 A2 ST A2 ST A2 ST A2 ST ST 20 ST ST A2 25 ST ST A2 ST A2 ST A2 ST ST ST A2 ST A2 ST A2 ST 30 ST ST A2 ST A2 ST A2 ST 35 ST ST ST A2 ST A2 ST 40 ST ST ST ST ST 45 ST ST ST ST ST 50 ST ST ST ST ST 60 ST ST ST ST 70 ST ST ST ST 80 ST ST ST ST 90 ST ST ST 100 ST ST ST ST - Steel, Zinc & clear - other finishes often available A2 - A2 Stainless steel, Self colour A2