William Hackett Metric Offshore Swivel Hoist Ring

The HA offshore swivel hoist ring (metric) is a bolt-on load attachment product specifically designed for the lifting and handling of loads in extreme, corrosive environments. It can rotate 360° around the bolt axis, as well as pivot 180°, allowing the hoist ring to orientate to the appropriate angle of lift, mitigating the risk of damage. The HA offshore swivel hoist ring (metric) is suitable for both top and side mounting and maintains its full working load limit even when pulled at 90°.

Key Features

• Standards: designed and manufactured in accordance with EN1677-1, ASME B30.26 and NORSOK R-002. L7 bolts manufactured in accordance with ASTM320/A320. Sherardised in accordance with BSEN ISO 17668:2016.
• Product sizes: available in sizes M12 to M64 with working load limits from 1.0 tonnes to 20.25 tonnes.
• Material and Hardness: all load bearing components are manufactured from alloy steel, quenched and tempered. The swivel hoist ring body and bail feature a maximum hardness range of 35 - 40 HRC, whilst the L7 bolts feature a maximum material hardness of 32 HRC.
• Zinc sherardised: the swivel hoist ring body, bail, and L7 bolt are zinc sherardised, delivering optimal corrosion resistance.
• Temperature: operational temperature range of -40°C to +200°C without reduction in working load limit.
• Testing: load-rated parts subject to 100% magnaflux crack detection following heat treatment. HA offshore swivel hoist rings proof tested to 2.5 times the working load limit, and fatigue rated to 20,000 cycles at 1.5 times the working load limit.
• Average impact energy (Charpy): 27 Joules minimum impact resistance at -101°C (for L7 bolts) and 42 Joules minimum impact resistance at -20°C (for swivel hoist ring body and bail).
• Extended bolts: available upon request.
• Safety factor: 4 : 1.

Specifications

Dimensions are metric and in millimetres.

Part Code	WLL (t)	Thread Size	A	B	C	D	E	F	G	H	I	J	K	L	Torque (Nm)	Mass (kg)
OS-H20-M12G	1.0	M12	50	55	47.0	20	131	82	13	12	14	54	6	16	100	1.0
OS-H20-M16G	1.8	M16	65	66	58.5	30	193	105	18	16	14	54	10	24	150	1.0
OS-H20-M20G	2.7	M20	65	66	58.5	36	199	105	18	20	18	69	12	30	250	2.0
OS-H20-M24G	4.5	M24	65	66	58.5	36	199	105	18	24	18	69	14	36	400	2.1
OS-H20-M30G	7.0	M30	87	80	82.5	48	266	145	25	30	27	91	17	46	500	5.7
OS-H20-M36G	11.25	M36	110	100	97.5	63	318	186	33	36	36	88	19	70	800	11.9
OS-H20-M42G	14.2	M42	110	100	97.5	63	318	186	33	42	36	88	19	70	800	12.0
OS-H20-M48G	18.0	M48	110	100	97.5	72	327	186	33	48	36	88	19	70	800	12.3
OS-H20-M56G	19.8	M56	123	110	112.0	84	363	199	35	56	36	97	19	80	800	16.4
OS-H20-M64G	20.25	M64	123	110	112.0	95	374	199	35	64	36	97	19	80	800	17.1