SUGGESTED TORQUE VALUES AND CLAMP LOADS GRADES 2, 5, & 8 CAP SCREWS
Nominal Size	Threads/Inch	Tensile Stress Area (sq. in)	Grade 2		Grade 5		Grade 8
			Clamp Load (lb)	Tightening Torque (in-lb)	Clamp Load (lb)	Tightening Torque (in-lb)	Clamp Load (lb)	Tightening Torque (in-lb)
.250	28	.0363	1200-1800	47-65	1855-2782	72-100	2619-3928	107-142
	20	.0318	1050-1575	41-57	1622-2432	65-88	2291-3437	93-129
.3125	24	.0580	1914-2871	93-129	2961-4441	144-200	4180-6270	212-294
	18	.0524	1729-2594	84-117	2674-4011	130-18O	3775-5662	199-265
.375	24	.0878	2897-4346	169-234	4479-6719	262-363	6324-9486	384-534
	16	.0774	2557-3836	150-207	3952-5928	231-320	5579-8369	339-471
.4375	20	.1187	3917-5876	267-370	6054-9080	413-572	3546-12820	606-841
	14	.1063	3508-5262	239-331	5421-8132	370-512	7654-11480	542-753
.500	20	.1599	5278-7917	412-570	8151-12236	53-73 (ft-Ib)	11516-64746	81-103 (ft-lb)
	13	.1419	4683-7024	365-506	7237-10855	47-65 (ft-lb)	10217-15325	72-96 (ft-lb)
Nominal Size	Threads/Inch	Tensile Stress Area (sq. in)	Clamp Load (lb)	Tightening Torque (ft-lb)	Clamp Load (lb)	Tightening Torque (ft-lb)	Clamp Load (lb)	Tightening Torque (ft-lb)
.5625	18	.2029	6698-10048	49-68	10356-15528	76-105	14615-21922	115-154
	12	.1731	5714-8571	42-58	9279-13319	68-90	13100-19651	103-138
.625	18	.2559	8446-12670	63-95	13053-19580	106-147	18428-27643	175-233
	11	.2260	7458-11187	61-84	11526-17289	94-130	16277-24408	143-191
.750	16	.3729	12392-18373	185-257	19021-28531	185-257	26853-40280	284-378
	10	.3344	11037-16555	108-149	17055-25582	166-230	24081-36122	254-338
1.000	12	.6630	13149-19703	164-247	33815-50722	440-609	47739-71608	670-894
	8	.6060	12010-17994	150-225	30892-46339	402-566	43613-65420	619-817
1.125	12	.8562	16948-25423	238-357	38006-57009	534-801	61632-92448	866-1300
	7	.7531	15107-2261	212-318	33877-50816	476-714	54936-82404	772-1158
1.250	12	1.0734	21245-31868	332-498	47641-71462	744-1116	77256-115884	1207-1810
	7	.9646	19186-28719	300-450	43023-64535	672-1008	69768-104652	1090-1635

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