Shackles

At Katradis Marine Ropes Industry, we offer a premium range of High-Performance Shackles designed for mooring, towing, lifting, and aquaculture operations. Our shackles are engineered for both commercial and non-critical applications, ensuring durability, strength, and safety in various marine and industrial environments.

Types of Shackles We Offer

Screw Pin Shackles – Available in “D” and Bow Type, ideal for temporary connections.
Bolt, Nut & Cotter Pin Safety Shackles – Featuring an alloy pin for extra security and long-term use.
Specialty Shackles – Custom-designed alloy pin shackles to meet specific operational requirements.

Applications of Our Shackles

Marine & Offshore Operations – Safe and secure mooring and towing
Heavy Lifting & Rigging – Suitable for industrial lifting applications
Aquaculture & Fishing – Dependable performance in harsh conditions

Learn About the Advanced Engineering Behind HP Shackles

Shackle precautions

Alloy pin shackles

Crafted from alloy steel pins and high-carbon, hot-dip galvanized bodies, Katradis HP Shackles offer proven superior durability and corrosion resistance. With a 6:1 safety factor (MBL to WLL ratio), these shackles offer an increased safety level for a long service time for any applications used as long as operation, storage, inspection & maintenance are properly conducted. Each shackle is proof load tested at 2:1 of its WLL and permanently marked for easy selection.

Key Features:

Durability: Built for harsh marine environments.
Versatility: Ideal for mooring, lifting, and securing chains or rope slings.
Safety Compliance: Test certificates included for every shackle.

For optimal performance (100% WLL), forces should always remain perpendicular to the pin to ensure full utilization of the WLL. For vertical and angled loading please choose anchor shackle (Bow type), chain shackle (“D” type) is for vertical loading only (0⁰ angle to the vertical).

Sideways loading (forces perpendicular to the shackle’s body sides {parallel to the pin}) is not recommended.

Temperature will affect shackle’s WLL.

G209

Technical data

Nominal Size (in.) D	Weight Each (kg)	Dimensions (mm)											Working Load Limit (tons)
Nominal Size (in.) D	Weight Each (kg)	A	B	C	D	E	F	G	H	L	M	P	Working Load Limit (tons)
3/16	0,03	9,65	6,35	22,4	4,85	15,2	14,2	24,9	37,3	4,06	28,4	4,85	0,33
1/4	0,05	11,9	7,85	28,7	6,35	19,8	15,5	32,5	46,7	4,85	35,1	6,35	0,50
5/16	0,09	13,5	9,65	31,0	7,85	21,3	19,1	37,3	53,0	5,60	42,2	7,85	0,75
3/8	0,14	16,8	11,2	36,6	9,65	26,2	23,1	45,2	63,0	6,35	51,5	9,65	1
7/16	0,17	19,1	12,7	42,9	11,2	29,5	26,9	51,5	74,0	7,85	60,5	11,2	1,5
1/2	0,33	20,6	16,0	47,8	12,7	33,3	30,2	58,5	83,5	9,65	68,5	12,7	2,0
5/8	0,62	26,9	19,1	60,5	16,0	42,9	38,1	74,5	106	11,2	85,0	17,5	3,25
3/4	1,07	31,8	22,4	71,5	19,1	51,0	46,0	89,0	126	12,7	101	20,6	4,75
7/8	1,64	36,6	25,4	84,0	22,4	58,0	53,0	102	148	12,7	114	24,6	6,5
1	2,28	42,9	28,7	95,5	25,4	68,5	60,5	119	167	14,2	129	26,9	8,5
1-1/8	3,36	46,0	31,8	108	29,5	74,0	68,5	131	190	16,0	142	31,8	9,5
1-1/4	4,31	51,5	35,1	119	32,8	82,5	76,0	146	210	17,5	156	35,1	12
1-3/8	6,14	57,0	38,1	133	36,1	92,0	84,0	162	233	19,1	174	38,1	13,5
1-1/2	7,80	60,5	41,4	146	39,1	98,5	92,0	175	254	20,6	187	41,1	17
1-3/4	12,6	73,0	51,0	178	46,7	127	106	225	313	25,4	231	57,0	25
2	20,4	82,5	57,0	197	53,0	146	122	253	348	31,0	263	61,0	35
2-1/2	38,9	105	70,0	267	69,0	184	145	327	453	35,1	330	79,5	55

G210

Technical data

Nominal Size (in.) D	Weight Each (kg)	Dimensions (mm)										Working Load Limit (tons)
Nominal Size (in.) D	Weight Each (kg)	A	B	C	D	E	F	G	K	L	M	Working Load Limit (tons)
1/4	0,05	11,9	7,85	6,35	6,35	24,6	15,5	22,4	40,4	4,85	35,1	0,50
5/16	0,08	13,5	9,65	7,85	7,85	29,5	19,1	26,2	48,5	5,60	42,2	0,75
3/8	0,13	16,8	11,2	9,65	9,65	35,8	23,1	31,8	58,5	6,35	51,5	1
7/16	0,20	19,1	12,7	11,2	11,2	41,4	26,9	36,6	67,5	7,85	60,5	1,5
1/2	0,27	20,6	16,0	12,7	12,7	46,0	30,2	41,4	77,0	9,65	68,5	2,0
5/8	0,57	26,9	19,1	15,7	16,0	58,5	38,1	51,0	95,5	11,2	85,0	3,25
3/4	1,20	31,8	22,4	20,6	19,1	70,0	46,0	60,5	115	12,7	101	4,75
7/8	1,43	36,6	25,4	24,6	22,4	81,0	53,0	71,5	135	12,7	114	6,5
1	2,15	42,9	28,7	25,4	25,4	93,5	60,5	81,0	151	14,2	129	8,5
1-1/8	3,06	46,0	31,8	31,8	28,7	103	68,5	91,0	172	16,0	142	9,5
1-1/4	4,11	51,5	35,1	35,1	31,8	115	76,0	100	191	17,5	156	12
1-3/8	5,28	57,0	38,1	38,1	35,1	127	84,0	111	210	19,1	174	13,5
1-1/2	7,23	60,5	41,4	41,1	38,1	137	92,0	122	230	20,6	187	17
1-3/4	12,1	73,0	51,0	54,0	44,5	162	106	146	279	25,4	231	25
2	19,2	82,5	57,0	60,0	51,0	184	122	172	312	31,0	263	35
2-1/2	32,5	105	70,0	66,5	66,5	238	145	203	377	35,1	330	55

G2130

Technical data

Nominal Size (in.) D	Weight Each (kg)	Dimensions (mm)									Working Load Limit (tons)
Nominal Size (in.) D	Weight Each (kg)	A	B	C	D	E	F	H	L	N	Working Load Limit (tons)
3/16	0,03	9,65	6,35	22,4	4,85	15,2	14,2	37,3	24,9	4,85	0,33
1/4	0,05	11,9	7,85	28,7	6,35	19,8	15,5	46,7	32,5	6,35	0,50
5/16	0,10	13,5	9,65	31,0	7,85	21,3	19,1	53,0	37,3	7,85	0,75
3/8	0,15	16,8	11,2	36,6	9,65	26,2	23,1	63,0	45,2	9,65	1
7/16	0,22	19,1	12,7	42,9	11,2	29,5	26,9	74,0	51,5	11,2	1,5
1/2	0,36	20,6	16,0	47,8	12,7	33,3	30,2	83,5	58,5	12,7	2,0
5/8	0,62	26,9	19,1	60,5	16,0	42,9	38,1	106	74,5	17,5	3,25
3/4	1,23	31,8	22,4	71,5	19,1	51,0	46,0	126	89,0	20,6	4,75
7/8	1,79	36,6	25,4	84,0	22,4	58,0	53,0	148	102	24,6	6,5
1	2,28	42,9	28,7	95,5	25,4	68,5	60,5	167	119	26,9	8,5
1-1/8	3,75	46,0	31,8	108	28,7	74,0	68,5	190	131	31,8	9,5
1-1/4	5,31	51,5	35,1	119	31,8	82,5	76,0	210	146	35,1	12
1-3/8	7,18	57,0	38,1	133	35,1	92,0	84,0	233	162	38,1	13,5
1-1/2	9,43	60,5	41,4	146	38,1	98,5	92,0	254	175	41,1	17
1-3/4	15,4	73,0	51,0	178	44,5	127	106	313	225	57,0	25
2	23,7	82,5	57,0	197	51,0	146	122	348	253	61,0	35
2-1/2	44,6	105	70,0	267	66,5	184	145	453	327	79,5	55
3	70	127	82,5	330	76,0	200	165	546	365	92,0	85
3-1/2	120	133	95,5	372	92,0	229	203	626	419	105	120
4	153	140	108	368	104	254	229	653	468	116	150

G2150

Technical data

Nominal Size (in.) D	Weight Each (kg)	Dimensions (mm)									Working Load Limit (tons)
Nominal Size (in.) D	Weight Each (kg)	A	B	D	F	G	K	M	P	R	Working Load Limit (tons)
1/4	0,06	11,9	7,85	6,35	15,5	19,1	40,4	24,6	39,6	6,35	0,50
5/16	0,10	13,5	9,65	7,85	19,1	25,4	48,5	29,5	46,2	7,85	0,75
3/8	0,15	16,8	11,2	9,65	23,1	31,0	58,5	35,8	55,0	9,65	1
7/16	0,22	19,1	12,7	11,2	26,9	36,1	67,5	41,1	63,5	11,2	1,5
1/2	0,34	20,6	16,0	12,7	30,2	41,4	77,0	46,0	71,0	12,7	2,0
5/8	0,67	26,9	19,1	16,0	38,1	51,0	95,5	58,5	89,5	16,0	3,25
3/4	1,14	31,8	22,4	19,1	46,0	60,5	115	70,0	103	20,6	4,75
7/8	1,74	36,6	25,4	22,4	53,0	71,5	135	81,0	120	24,6	6,5
1	2,52	42,9	28,7	25,4	60,5	81,0	151	93,5	135	25,4	8,5
1-1/8	3,45	46,0	31,8	28,7	68,5	91,0	172	103	150	31,8	9,5
1-1/4	4,90	51,5	35,1	31,8	76,0	100	191	115	165	35,1	12
1-3/8	6,24	57,0	38,1	35,1	84,0	111	210	127	183	38,1	13,5
1-1/2	8,39	60,5	41,4	38,1	92,0	122	230	137	196	41,1	17
1-3/4	14,2	73,0	51,0	44,5	106	146	279	162	230	54,0	25
2	21,2	82,5	57,0	51,0	122	172	312	184	264	60,0	35
2-1/2	38,6	105	70,0	66,5	145	203	377	238	344	66,5	55
3	56	127	82,5	76,0	165	216	429	279	419	89,0	85

Commercial shackles

These shackles have equal sized pin and body. They are manufactured from mild steel which is left untreated, in grade 30, with galvanized finish. Not suitable for lifting operations. Fairly resilient and long-lasting in typical environments. With typical screw pin for securing. This makes them both easy to use and quick to fasten or unfasten. For applications where the shackle regularly needs to be removed or repositioned for whatever reason, this could be an advantage. Available in “D” & Bow types.

D TYPE

Technical data

SWL	D	d	a	c	b	Weight per 100 pce
kg	mm	mm	mm	mm	mm	kg
80	5	5	10	19	11	1,9
100	6	6	13	25	14	3,4
200	8	8	16	32	18	7
320	10	10	19	38	20	13
520	12	12	25	51	26	24
800	16	16	32	64	33	50
1100	20	20	38	76	40	80
1500	22	22	44	89	50	130
2100	25	25	51	100	57	200
3000	28	28	57	115	68	300
3500	32	32	64	127	73	430
5000	38	38	76	152	85	675
7000	45	45	90	180	96	1250
8000	50	50	102	200	108	1750

BOW TYPE

Technical data

SWL	D	d	a	c	r	d	Approx 100 pce/WT
kg	mm	mm	mm	mm	mm	mm	kg
80	5	5	10	19	8	11	1,9
100	6	6	13	25	10	14	3,4
200	8	8	16	32	12	18	7
320	10	10	19	38	16	20	13
520	12	12	25	51	19	26	26
800	16	16	32	64	28	33	50
1100	20	20	38	76	33	40	80
1500	22	22	44	89	37	50	130
2100	25	25	51	100	40	57	200
3000	28	28	57	115	47	68	310
3500	32	32	64	127	52	73	430
5000	38	38	76	152	63	85	700
7000	45	45	90	180	75	96	1250
8000	50	50	102	200	78	108	1750

Shackle Precautions

Side Loading Reduction Chart For Screw Pin and Bolt Type Shackles
Angle of Side Load from Vertical In-Line of shackle	Adjusted Working Load Limit
0° In-Line *	100% of Rated Working Load Limit
45° from In-Line *	70% of Rated Working Load Limit
90° from In-Line *	50% of Rated Working Load Limit

* In-Line load is applied perpendicular to pin.