(5) minimum safety factor 4:1 (6) proof tested to 400% rated load (7) fatigue tested to 150% rated load over 20, 000 cycles of tensile strength test passed. (8) proof tested to 2.5 times working load limit (9) heat treatment: quenched & tempered 161;¡§o© Packaging & delivery Packaging detail: carton or + steel pallet Delivery detail: about 15-25 days upon receipt of Your order Contact us for further information My email address is sales at nices dot net
