Daiwa JThread FC 40lb Fluorocarbon

Daiwa JThread FC 40lb

Backing up from the success of J-Braid, J-Thread FC is a 100% fluorocarbon leader material that boasts increased abrasion resistance and super-low memory.

Made in Japan from the finest raw materials, J-Thread FC features a low-memory core, improving handling characteristics and improving knot performance. The outer layer is treated to increase hardness and resilience to abrasion. Available in 4-80lb breaking strains in 100 or 50m spools, J-Thread FC is ready for battle.

https://daiwafishing.com.au/collections/line/products/j-thread-fc

Key Statistics

Measured Diameter: .507mm (+100.4% on claimed .505mm) This accuracy is extremely uncommon!
Measured Breaking Strain: 32.66lbs (81.6% on claimed 40lbs)
Abrasion Breaking Strain: 14.96lbs (30.2% of measured)
Breaking strain indicate that this is closer to a 30lb line, not 40lb. Abrasion resistance is right on average compared to other monofilaments.

Testing Process

Key Line Statistics

Attribute	Value
Brand	Daiwa
Name	JThread FC
Web Site	Visit Website
Rated Strength (lbs)	40
Date Tested	26 May 2022
Credit to	Line Laboratory
Strands	1
Cost $AUD	24.99
Spool Quanity (m)	50
Quoted Diameter (mm)	0.505
Measured Average Diameter (mm)	0.507
Diameter Quoted vs Measured (%)	100.4
Minimum Diameter (mm)	0.501
Maximum Diameter (mm)	0.516
Break Max Average (lbs)	32.66
Claimed vs Actual Maximum Break (%)	81.65
Average Stretch @ Maximum Break	N/A
Tensile Strength (PSI)	104233
Tensile Rank	21
Abrasion Break Max Average (lbs)	15.76
Abrasion Break vs Max Break (%)	48.25
Abrasion % of Maximum Rank	17
Abrasion Tensile Strength PSI	50298
Abrasion Tensile Rank	26
FG Break Max Average (lbs)	0
FG Break vs Max Break (%)	0
FG % of Maximum Rank	15
FG Tensile Strength PSI	0
FG Tensile Rank	18

Time	Test1	Test2	Test3	Average	Rated
0.0	0.00	0.00	0.00	32.66	40
0.1	0.13	0.18	0.11	32.66	40
0.2	0.35	0.27	0.16	32.66	40
0.3	0.51	0.48	0.39	32.66	40
0.4	0.94	0.68	0.61	32.66	40
0.5	1.20	1.19	1.02	32.66	40
0.6	1.72	1.48	1.20	32.66	40
0.7	1.96	2.01	1.59	32.66	40
0.8	2.21	2.23	1.81	32.66	40
0.9	2.35	2.46	2.02	32.66	40
1.0	2.49	2.60	2.20	32.66	40
1.1	2.80	2.74	2.37	32.66	40
1.2	2.98	3.07	2.65	32.66	40
1.3	3.30	3.26	2.74	32.66	40
1.4	3.46	3.60	2.97	32.66	40
1.5	3.61	3.75	3.10	32.66	40
1.6	3.69	4.00	3.34	32.66	40
1.7	3.78	4.09	3.46	32.66	40
1.8	3.98	4.19	3.57	32.66	40
1.9	4.10	4.31	3.65	32.66	40
2.0	4.34	4.44	3.73	32.66	40
2.1	4.45	4.69	3.93	32.66	40
2.2	4.66	4.82	4.04	32.66	40
2.3	4.76	5.04	4.26	32.66	40
2.4	4.85	5.12	4.37	32.66	40
2.5	4.99	5.21	4.47	32.66	40
2.6	5.14	5.34	4.54	32.66	40
2.7	5.42	5.47	4.61	32.66	40
2.8	5.55	5.72	4.77	32.66	40
2.9	5.77	5.85	4.86	32.66	40
3.0	5.86	6.05	5.07	32.66	40
3.1	6.08	6.12	5.19	32.66	40
3.2	6.22	6.20	5.39	32.66	40
3.3	6.36	6.33	5.46	32.66	40
3.4	6.50	6.46	5.54	32.66	40
3.5	6.63	6.72	5.67	32.66	40
3.6	6.87	6.84	5.79	32.66	40
3.7	6.97	7.06	6.04	32.66	40
3.8	7.22	7.14	6.17	32.66	40
3.9	7.38	7.36	6.37	32.66	40
4.0	7.53	7.49	6.44	32.66	40
4.1	7.67	7.62	6.64	32.66	40
4.2	7.80	7.74	6.75	32.66	40
4.3	8.03	7.87	6.87	32.66	40
4.4	8.13	8.07	6.98	32.66	40
4.5	8.37	8.16	7.10	32.66	40
4.6	8.51	8.35	7.29	32.66	40
4.7	8.81	8.47	7.36	32.66	40
4.8	8.95	8.71	7.56	32.66	40
4.9	9.10	8.84	7.67	32.66	40
5.0	9.21	8.97	7.79	32.66	40
5.1	9.31	9.05	7.89	32.66	40
5.2	9.57	9.13	7.99	32.66	40
5.3	9.73	9.33	8.15	32.66	40
5.4	10.02	9.46	8.21	32.66	40
5.5	10.15	9.71	8.38	32.66	40
5.6	10.39	9.85	8.49	32.66	40
5.7	10.49	9.98	8.60	32.66	40
5.8	10.59	10.08	8.71	32.66	40
5.9	10.74	10.17	8.83	32.66	40
6.0	10.89	10.40	9.03	32.66	40
6.1	11.19	10.54	9.12	32.66	40
6.2	11.34	10.79	9.34	32.66	40
6.3	11.59	10.91	9.46	32.66	40
6.4	11.68	11.16	9.71	32.66	40
6.5	11.78	11.28	9.84	32.66	40
6.6	11.92	11.41	9.96	32.66	40
6.7	12.07	11.48	10.03	32.66	40
6.8	12.33	11.55	10.11	32.66	40
6.9	12.45	11.76	10.28	32.66	40
7.0	12.65	11.89	10.39	32.66	40
7.1	12.73	12.16	10.63	32.66	40
7.2	12.94	12.29	10.76	32.66	40
7.3	13.06	12.42	10.90	32.66	40
7.4	13.19	12.51	11.00	32.66	40
7.5	13.33	12.60	11.10	32.66	40
7.6	13.47	12.80	11.33	32.66	40
7.7	13.70	12.92	11.45	32.66	40
7.8	13.79	13.16	11.69	32.66	40
7.9	14.02	13.28	11.81	32.66	40
8.0	14.15	13.48	11.99	32.66	40
8.1	14.29	13.55	12.05	32.66	40
8.2	14.42	13.62	12.12	32.66	40
8.3	14.54	13.75	12.22	32.66	40
8.4	14.75	13.89	12.33	32.66	40
8.5	14.84	14.18	12.57	32.66	40
8.6	15.05	14.34	12.71	32.66	40
8.7	15.17	14.58	13.00	32.66	40
8.8	15.43	14.67	13.14	32.66	40
8.9	15.55	14.86	13.29	32.66	40
9.0	15.68	14.97	13.36	32.66	40
9.1	15.77	15.21	13.43	32.66	40
9.2	15.85	15.34	13.61	32.66	40
9.3	16.06	15.47	13.73	32.66	40
9.4	16.18	15.54	13.94	32.66	40
9.5	16.41	15.60	14.03	32.66	40
9.6	16.53	15.81	14.20	32.66	40
9.7	16.64	15.95	14.26	32.66	40
9.8	16.75	16.24	14.33	32.66	40
9.9	16.86	16.38	14.48	32.66	40
10.0	17.06	16.59	14.63	32.66	40
10.1	17.16	16.66	14.89	32.66	40
10.2	17.37	16.72	15.01	32.66	40
10.3	17.48	16.82	15.20	32.66	40
10.4	17.72	16.93	15.28	32.66	40
10.5	17.83	17.16	15.47	32.66	40
10.6	17.95	17.28	15.59	32.66	40
10.7	18.01	17.46	15.70	32.66	40
10.8	18.08	17.52	15.80	32.66	40
10.9	18.25	17.57	15.90	32.66	40
11.0	18.36	17.72	16.07	32.66	40
11.1	18.59	17.86	16.15	32.66	40
11.2	18.72	18.15	16.36	32.66	40
11.3	18.84	18.28	16.49	32.66	40
11.4	18.93	18.47	16.63	32.66	40
11.5	19.01	18.52	16.75	32.66	40
11.6	19.21	18.67	16.86	32.66	40
11.7	19.33	18.77	17.05	32.66	40
11.8	19.56	18.87	17.13	32.66	40
11.9	19.69	19.00	17.31	32.66	40
12.0	19.87	19.13	17.42	32.66	40
12.1	19.92	19.31	17.61	32.66	40
12.2	19.98	19.37	17.70	32.66	40
12.3	20.09	19.56	17.78	32.66	40
12.4	20.20	19.70	17.86	32.66	40
12.5	20.43	19.84	17.94	32.66	40
12.6	20.55	19.98	18.16	32.66	40
12.7	20.74	20.12	18.30	32.66	40
12.8	20.82	20.32	18.56	32.66	40
12.9	20.89	20.37	18.67	32.66	40
13.0	21.01	20.52	18.79	32.66	40
13.1	21.14	20.62	18.86	32.66	40
13.2	21.38	20.82	18.94	32.66	40
13.3	21.50	20.94	19.09	32.66	40
13.4	21.69	21.05	19.18	32.66	40
13.5	21.75	21.12	19.36	32.66	40
13.6	21.93	21.18	19.46	32.66	40
13.7	22.03	21.39	19.56	32.66	40
13.8	22.14	21.53	19.67	32.66	40
13.9	22.26	21.80	19.77	32.66	40
14.0	22.37	21.93	20.00	32.66	40
14.1	22.56	22.06	20.13	32.66	40
14.2	22.62	22.12	20.34	32.66	40
14.3	22.80	22.18	20.42	32.66	40
14.4	22.92	22.33	20.60	32.66	40
14.5	23.03	22.41	20.68	32.66	40
14.6	23.14	22.58	20.77	32.66	40
14.7	23.25	22.67	20.85	32.66	40
14.8	23.42	22.85	20.92	32.66	40
14.9	23.48	22.94	21.11	32.66	40
15.0	23.64	23.04	21.22	32.66	40
15.1	23.73	23.18	21.42	32.66	40
15.2	23.95	23.32	21.51	32.66	40
15.3	24.06	23.58	21.60	32.66	40
15.4	24.18	23.70	21.70	32.66	40
15.5	24.25	23.87	21.81	32.66	40
15.6	24.33	23.91	22.01	32.66	40
15.7	24.51	23.96	22.11	32.66	40
15.8	24.63	24.06	22.28	32.66	40
15.9	24.83	24.16	22.36	32.66	40
16.0	24.93	24.33	22.50	32.66	40
16.1	25.02	24.41	22.56	32.66	40
16.2	25.08	24.57	22.63	32.66	40
16.3	25.13	24.67	22.76	32.66	40
16.4	25.29	24.89	22.88	32.66	40
16.5	25.40	25.03	23.11	32.66	40
16.6	25.60	25.16	23.21	32.66	40
16.7	25.70	25.28	23.40	32.66	40
16.8	25.80	25.40	23.49	32.66	40
16.9	25.88	25.56	23.58	32.66	40
17.0	25.95	25.61	23.68	32.66	40
17.1	26.14	25.75	23.77	32.66	40
17.2	26.26	25.84	23.94	32.66	40
17.3	26.45	25.94	24.00	32.66	40
17.4	26.53	26.01	24.13	32.66	40
17.5	26.66	26.08	24.19	32.66	40
17.6	26.70	26.25	24.39	32.66	40
17.7	26.75	26.35	24.53	32.66	40
17.8	26.87	26.58	24.67	32.66	40
17.9	26.99	26.70	24.77	32.66	40
18.0	27.19	26.93	24.87	32.66	40
18.1	27.27	27.03	25.04	32.66	40
18.2	27.42	27.13	25.11	32.66	40
18.3	27.49	27.19	25.29	32.66	40
18.4	27.67	27.24	25.40	32.66	40
18.5	27.78	27.39	25.56	32.66	40
18.6	27.89	27.49	25.62	32.66	40
18.7	27.96	27.65	25.67	32.66	40
18.8	28.04	27.73	25.73	32.66	40
18.9	28.14	27.80	25.80	32.66	40
19.0	28.18	27.89	26.00	32.66	40
19.1	28.34	27.98	26.13	32.66	40
19.2	28.46	28.20	26.34	32.66	40
19.3	28.59	28.32	26.41	32.66	40
19.4	28.67	28.54	26.48	32.66	40
19.5	28.76	28.62	26.55	32.66	40
19.6	28.91	28.77	26.61	32.66	40
19.7	28.97	28.83	26.79	32.66	40
19.8	29.13	28.89	26.90	32.66	40
19.9	29.23	28.98	27.04	32.66	40
20.0	29.32	29.06	27.08	32.66	40
20.1	29.39	29.21	27.11	32.66	40
20.2	29.46	29.27	27.20	32.66	40
20.3	29.60	29.42	27.28	32.66	40
20.4	29.68	29.50	27.50	32.66	40
20.5	29.83	29.59	27.62	32.66	40
20.6	29.90	29.70	27.81	32.66	40
20.7	30.06	29.80	27.88	32.66	40
20.8	30.13	29.99	28.02	32.66	40
20.9	30.21	30.06	28.09	32.66	40
21.0	30.30	30.19	28.17	32.66	40
21.1	30.38	30.24	28.27	32.66	40
21.2	30.53	30.36	28.37	32.66	40
21.3	30.58	30.43	28.52	32.66	40
21.4	30.69	30.50	28.57	32.66	40
21.5	30.75	30.59	28.69	32.66	40
21.6	30.87	30.67	28.76	32.66	40
21.7	30.93	30.90	28.94	32.66	40
21.8	31.00	31.05	29.05	32.66	40
21.9	31.06	31.22	29.16	32.66	40
22.0	31.13	31.26	29.22	32.66	40
22.1	31.25	31.29	29.29	32.66	40
22.2	31.30	31.35	29.39	32.66	40
22.3	31.44	31.40	29.43	32.66	40
22.4	31.53	31.53	29.55	32.66	40
22.5	31.61	31.61	29.64	32.66	40
22.6	31.65	31.68	29.72	32.66	40
22.7	31.68	31.68	29.76	32.66	40
22.8	31.76	31.72	29.80	32.66	40
22.9	31.79	31.77	29.91	32.66	40
23.0	31.86	31.81	29.99	32.66	40
23.1	31.90	31.98	30.18	32.66	40
23.2	32.00	32.15	30.31	32.66	40
23.3	32.06	32.36	30.47	32.66	40
23.4	32.13	32.40	30.50	32.66	40
23.5	32.19	32.44	30.54	32.66	40
23.6	32.25		30.60	32.66	40
23.7	32.36		30.66	32.66	40
23.8	32.41		30.76	32.66	40
23.9	32.54		30.80	32.66	40
24.0	32.62		30.86	32.66	40
24.1	32.71		30.88	32.66	40
24.2	32.73		30.90	32.66	40
24.3	32.74		31.01	32.66	40
24.4			31.13	32.66	40
24.5			31.35	32.66	40
24.6			31.46	32.66	40
24.7			31.60	32.66	40
24.8			31.63	32.66	40
24.9			31.68	32.66	40
25.0			31.70	32.66	40
25.1			31.72	32.66	40
25.2			31.76	32.66	40
25.3			31.79	32.66	40
25.4			31.84	32.66	40
25.5			31.84	32.66	40
25.6			31.92	32.66	40
25.7			31.98	32.66	40
25.8			32.05	32.66	40
25.9			32.12	32.66	40
26.0			32.19	32.66	40
26.1			32.28	32.66	40
26.2			32.29	32.66	40
26.3			32.33	32.66	40
26.4			32.34	32.66	40
26.5			32.37	32.66	40
26.6			32.38	32.66	40
26.7			32.39	32.66	40
26.8			32.46	32.66	40
26.9			32.54	32.66	40
27.0			32.67	32.66	40
27.1			32.74	32.66	40
27.2			32.80	32.66	40

Daiwa JThread FC 40lb

Key Statistics

Testing Process

Key Line Statistics

Diameter Measurements