BS EN 4498:2005 : Title: Aerospace series. Bolts, large bihexagonal head, close tolerance normal shank, medium length thread, in heat resisting nickel base alloy, passivated, with aluminium pigmented coating. Classification: 1 550 MPa (at ambient temperature) / 315 °C Pages: 12 Year: Publisher: British Standards Institution Availability: Within 1-2 working days
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