IS 15582 Hexagon Flange Bolts

Equivalent Standards

Dimensions of IS 15582 Hexagon Flange Bolts

Dimension in Millimeters

Thread (d)			M5		M6		M8		M10		M12		(M14)¹⁾		M16
p²⁾			0.8		1		1.25		1.5		1.75		2		2
b ref.		3)	16		18		22		26		30		34		38
		4)	--		--		28		32		36		40		44
		5)	--		--		--		--		--		--		--
c		min.	1		1.1		1.2		1.5		1.8		2.1		2.4
d_a	Type F U	max.	5.7		6.8		9.2		11.2		13.7		15.7		17.7
d_a	Type F U	max.	6.2		7.5		10		12.5		15.2		17.7		20.5
d_c		max.	11.4		13.6		17		20.8		24.7		28.6		32.8
d_s		max.	5.00		6.00		8.00		10.00		12.00		14.00		16.00
d_s		min.	4.82		5.82		7.78		9.78		11.73		13.73		15.73
d_v		max.	5.5		6.6		8.8		10.8		12.8		14.8		17.8
d_w		min.	9.4		11.6		14.9		18.7		22.5		26.4		30.6
e		min.	7.44		8.56		10.8		14.08		16.32		19.68		22.58
k		max.	5.6		6.8		8.5		9.7		11.9		12.9		15.1
k^'		min.	2.3		2.9		3.8		4.3		5.4		5.6		6.7
l_f		max.	1.4		1.6		2.1		2.1		2.1		2.1		3.2
r₁		min.	0.2		0.25		0.4		0.4		0.6		0.6		0.6
r2⁶⁾		max.	0.3		0.4		0.5		0.6		0.7		0.9		1
r₃		max.	0.25		0.26		0.36		0.45		0.54		0.63		0.72
r₃		min.	0.10		0.11		0.16		0.20		0.24		0.28		0.32
r₄		ref.	4		4.4		5.7		5.7		5.7		5.7		8.8
s		max.	7.00		8.00		10.00		13.00		15.00		18.00		21.00
s		min.	6.64		7.64		9.64		12.57		14.57		17.57		20.16
v		max.	0.15		0.20		0.25		0.30		0.35		0.45		0.50
v		min.	0.05		0.05		0.10		0.15		0.15		0.20		0.25
l^{7), 8)}			l_s and l_g⁹⁾
nom.	min.	max.	l_s min.	l_g min.	l_s min.	l_g min.	l_s min.	l_g min.	l_s min.	l_g min.	l_s min.	l_g min.	l_s min.	l_g min.	l_s min.	l_g min.
10	9.71	10.29	-- -- --	-- -- --	-- --	-- --	--	--
12	11.65	12.35
16	15.65	16.35
20	19.58	20.42	--	--	-- --	-- --	-- -- --	-- -- --	-- -- --	-- -- --	-- --	-- --	--	--
25	24.58	25.42	5	9	-- --	-- --
30	29.58	30.42	10	14	7	12
35	34.5	35.5	15 20 25	19 24 29	12 17 22	17 22 27	6.75	13	--	--	-- --	-- --	-- -- --	-- -- --	-- -- --	-- -- --
40	39.5	40.5					11.75 16.75	18 23	6.5	14	-- --	-- --
45	44.5	45.5					11.75 16.75	18 23	11.5	19	6.25	15
50	49.5	50.5	30	34	27 32 37	32 37 42	21.75 26.75 31.75	28 33 38	16.5 21.5 26.5	24 29 34	11.25 16.25 21.25	20 25 30	6	16	--	--
55	54.4	55.6											11 16	21 26	7	17
60	59.4	60.6											11 16	21 26	12	22
65	64.4	65.6					36.75 41.75 51.75	43 48 58	31.5 36.5 46.5	39 44 54	26.25 31.25 41.25	35 40 50	21 26 36	31 36 46	17 22 32	27 32 42
70	69.4	70.6
80	79.4	80.6
90	89.3	90.7							56.5 66.5	64 74	51.25 61.25 71.25	60 70 80	46 56 66	56 66 76	42 52 62	52 62 72
100	99.3	100.7
110	109.3	110.7
120	119.3	120.7									81.25	90	76 80 90	86 90 100	72 76 86	82 86 96
130	129.2	130.8
140	139.2	140.8
150	149.2	150.8													96 106	106 116
160	159.2	160.8													96 106	106 116
1) The size in parentheses should be avoided if possible. 2) P pitch of the thread. 3) For lengths l_nom 125 mm. 4) For lengths 125 mm < l_nom < 200 mm. 5) For lengths l_nom > 200 mm. 6) Radius r₂ applies both at the corners and at the flats of the hexagon. 7) Screws with lengths shown above the continuous thick line are threaded to head. 8) Reduced shank type (type R) only below the dashed thick line. 9) l_g is the minimum grip length. NOTE If the product passes the gauging in annex A, the requirements for dimensions e and k' are satisfied.

Material		Steel	Stainless Steel
General requirements	Interanational Standard	ISO 8992
Thread	Tolerance	6g
Thread	Interanational Standard	ISO 261, ISO 965-2
Mechanical properties	Class	88, 9.8, 10.9	A2-70
Mechanical properties	Interanational Standard	ISO 898-1	ISO 3506
Tolerance	Product grade	A¹⁾
Tolerance	Interanational Standard	ISO 4759-1
Finish		Black oxide (thermic or chemical)	Plain
		Requirements for electroplating are covered in ISO 4042.
		If different electroplating requirements are desired or if requirements are needed for other finishes. they should be negotiated between customer and supplier.
		Limits for surface discountinuities are coverd in ISO 6157-1 and ISO 6157-3.
Acceptability		For acceptance procedure, see ISO 3269.
1) Dimensions s and e have tolerance to product grade B.

Designation

Example for the designation of a hexagon flange bolt, small series, with thread M12, nominal length / 80 mm, type For U at the option of the manufacturer, and property class 8.8:

Hexagon flange bolt IS 15582-M12 × 808.8

Example for the designation of a hexagon flange bolt, small series, with thread M12, nominal length / 80 mm, type F, and property class 8.8:

Hexagon flange bolt IS 15582-M12 x 80F8.8

If, in special cases, a hexagon flange bolt, small series, with reduced shank is required, the letter R shall be included in the designation:

Hexagon flange bolt IS 15582M12 x 80R-8.8