• Forged Steel - Quenched and Tempered.
• Working Load Limits shown are for in-line pull. For angle loading, see page 166 .
• Fatigue rated at 1-1/2 times the Working Load Limit at 20,000 cycles.
• Crosby products meet or exceed all the requirements of ASME B30.26 including identification, ductility, design factor, proof load and temperature requirements.  Importantly, Crosby products meet other critical performance requirements inluding fatigue life, impact properties and material traceability, not addressed by ASME B30.26.
• Recommended for in-line pull.
• S-279 threaded UNC.
• M-279 metric threaded

S-279 UNC

Size	S-279 Stock No.	Working Load Limit * (lbs.)	Weight per 100 (lbs.)	Dimensions (in.)
				A** Thread	B	C	D	E	F	G	H
1/4 x 1	9900182	650	5.00	1/4 - 20	1.02	1.13	.75	2.29	.19	.53	.70
5/16 x 1-1/8	9900191	1200	9.00	5/16 - 18	1.15	1.38	.88	2.74	.25	.59	.90
3/8 x 1-1/4	9900208	1550	15.00	3/8 - 16	1.27	1.62	1.00	3.07	.31	.69	1.00
1/2 x 1-1/2	9900217	2600	28.00	1/2 - 13	1.53	1.95	1.19	3.70	.38	.91	1.20
5/8 x 1-3/4	9900226	5200	55.00	5/8 - 11	1.79	2.38	1.38	4.45	.50	1.13	1.47
3/4 x 2	9900235	7200	96.00	3/4 - 10	2.05	2.76	1.50	5.07	.63	1.38	1.64
7/8 x 2-1/4	9900244	10600	154.00	7/8 - 9	2.31	3.25	1.75	5.87	.75	1.56	1.94
1 x 2-1/2	9900253	13300	238.00	1 - 8	2.57	3.76	2.00	6.66	.88	1.81	2.21
1-1/4 x 3	9900262	21000	399.00	1 1/4 - 7	3.09	4.50	2.50	7.95	1.00	2.28	2.61
1-1/2 x 3-1/2	9900271	24000	720.00	1 1/2 - 6	3.60	5.50	3.00	9.49	1.25	2.75	3.14

* Ultimate Load is 5 times the Working Load Limit. Maximum Proof Load is 2 times the Working Load Limit
   ** All Bolts Threaded UNC

M-279 Metric

Size	M-279 Stock No.	Working Load Limit * (kg)	Weight Each (kg)	Dimensions (mm)
				A** Thread	B	C	D	E	F	G	H
M6 x 1.0	1045753	200	.03	M6 x 1.0	13.0	28.7	19.1	49	4.9	13.5	21.7
M8 x 1.0	1045789	400	.05	M8 x 1.25	13.0	35.1	22.4	56	6.4	15.0	25.5
M10 x 1.5	1045833	640	.07	M10 x 1.5	17.0	41.1	25.4	64	7.9	17.5	26.5
M12 x 1.75	1045869	1000	.11	M12 x 1.75	20.5	49.5	30.2	78	9.7	23.1	32.8
M16 x 2.0	1045913	1800	.25	M16 x 2.0	27.0	60.5	35.1	97.5	12.7	28.7	40.3
M20 x 2.5	1045995	2500	.42	M20 x 2.5	30.0	70.0	38.1	110	16.0	35.1	45.0
M24 x 3.0	1046029	4000	1.05	M24 x 3.0	36.0	95.5	51.0	143	22.4	46.0	59.3
M30 x 3.5	1046075	6000	1.77	M30 x 3.5	45.0	114	63.5	174	25.4	58.0	72.0
M36 x 4.0	1046109	8500	3.12	M36 x 4.0	54.0	140	76.0	212	31.8	70.0	88.0

* Ultimate Load is 5 times the Working Load Limit. Maximum Proof Load is 2 times the Working Load Limit
   ** On Request: Special threading, as forged bolts for customer conversion.