The Crosby S-1327 Sling Hook is much like the popular S-320AN style of hook that Crosby has offered for many years. Despite minor dimensional differences, the main difference is these hooks are made from Grade 100 alloy steel, which is 25% stronger than Grade 80 (these hooks are suitable for use with both Grade 80 and Grade 100 chain slings for overhead lifting). They are individually proof-tested at 2-1/2 times the Working Load Limit with certification, and are fatigue rated at 1-1/2 times the Working Load Limit at 20,000 cycles. They incorporate the standard S-4320 latch kit (sold separately, largest size designed to work with Crosby PL Heavy-Duty Latch). The heavy-duty stamped latch interlocks with the hook tip and features a high cycle, long life spring, and may be used for personnel lifting when properly secured with supplied cotter pin. These hooks may be ordered with the latch kit installed as the L-1327
. Safety factor of 4:1.