Allen key sizes: M4=3mm key. High tensile grade 12.9 Socket Cap Screws for use where strength is of high importance. High Tensile Self Colour Grade 12.9. Bolt World.
M4 (4mmØ) CAP SCREWS A2 STAINLESS STEEL ALLEN KEY HEXAGON SOCKET BOLTS DIN 912
M4 M5 M6 M8 CAP SCREWS ALLEN KEY HEXAGON SOCKET BOLTS A2 STAINLESS STEEL DIN 912
M2 M2.5 M3 M4 A2 Stainless Steel Allen Bolt Socket Cap Screws Hex Head DIN 912
Accu - M4 x 12mm Full Thread Cap Head Screws (DIN 912) - Stainless Steel (A2) (Pack of 50)
M4 / 4mm GRADE 12.9 ZINC SOCKET CAP SCREWS, ALLEN KEY BOLTS HEX HEAD DIN 912
Accu - M4 x 16mm Full Thread Cap Head Screws (DIN 912) - Stainless Steel (A2) (Pack of 50)
