BS EN 3.3558. Aerospace series. Screws, 100° countersunk normal head, Spiral Drive Recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated. Classification : 1 100 MPa (at ambient temperature) / 235 °C

BS EN 3.3558. Aerospace series. Screws, 100° countersunk normal head, Spiral Drive Recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated. Classification : 1 100 MPa (at ambient temperature) / 235 °C

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