Brass Phillips Flat Countersunk Screws DIN 965: d1 d2 k max. Phillips m approx. t min. t max. Proof Load N M2 3.8 1.2 1 2.35 0.95 1.25 600 M2.5 4.7 1.5 1 2.7 1.25 1.55 990 M3 5.6 1.65 1 2.9 1.5 1.8 1560 M3.5 6.5 1.93 2 3.9 1.4 1.9 2100 M4 7.5 2.2 2 4.4 1.9 2.4 2720 M5 9.2 2.5 2 4.6 2.1 2.6 4400 M6 16 3 3 6.6 2.8 3.3 6230 M8 14.5 4 4 8.7 3.9 4.4 11400