High Strength Structural Bolts

Product Details:

Click to View more
Share Your Product:

Request to Call Back Send Inquiry

Product Description

High Strength Structural Bolts

High strength structural bolts M16 to M36 or equivalent size in inch series.
Dimensions for bolts conforming to IS 3757, DIN- 6914, ASTM 325 M or ISO 7412. Nut dimensions shall conform to IS - 6623, DIN 6915, ASTM A 563M or ISO 4775. Washer dimensions shall be conforming to IS -6649, DIN-6917, ASTM F -436 or ISO 7415.
Mechanical properties conforming to 8.8 or 10.9 grade as per IS - 1367 or ISO 898 or as per respective standard.
Threads conforming to medium class fit or class "6g" for bolts and "6H" for nuts as per IS - 4218, ISO 261/965.
Products are generally supplied in thermal black finish. Hot dip galvanized finish can be supplied on specific request.

'PF' High Strength Bolts for Structural Steel Joints with Nuts & Washers to Comply with ASTMA-325M/A490M for Bolts, A563M for Nuts & F436M for Washers Grade 8S/10S.

Table 1 : P.F. ASTM A325M High Strength Structural Bolts Dimensions

Thread Size		M16	M20	(M22)	M24	(M27)	M30	M36
Pitch		2.0	2.50	2.50	3.00	3.00	3.50	4.00
B	Max.	16.70	20.84	22.84	24.84	27.84	30.84	37.00
B	Min.	15.30	19.16	21.16	23.16	26.16	29.16	35.00
da	Max.	18.70	23.24	25.24	27.64	30.40	33.40	39.40
W	Max.	27.00	34.00	36.00	41.00	46.00	50.00	60.00
W	Min.	26.16	33.00	35.00	40.00	45.00	49.00	58.80
C	Min.	29.56	37.29	39.25	45.20	50.85	55.37	66.44
H	Max.	10.75	13.40	14.90	15.90	17.90	19.75	23.55
H	Min.	9.25	11.60	13.10	14.10	16.10	17.65	21.45
R	Min.	0.60	0.80	0.80	1.00	1.20	1.20	1.50
T	T1 Ref.	31	36	38	41	44	49	56
T	T2 Ref.	38	43	45	48	51	56	63

Table 2 : P.F. ASTM A563M High Strength Structural Nuts-Dimensions

Thread Size		M16	M20	(M22)	M24	(M27)	M30	M36
	Pitch	2.0	2.50	2.50	3.00	3.00	3.50	4.00
W	Max.	27.00	34.00	36.00	41.00	46.00	50.00	60.00
W	Min.	26.16	33.00	35.00	40.00	45.00	49.00	58.80
C	Min.	29.56	37.29	39.55	45.20	50.85	55.37	66.44
H	Max.	17.10	20.70	23.60	24.20	27.60	30.70	26.60
H	Min.	16.40	19.40	22.30	22.60	26.30	29.10	35.00
Weight Kg./- 1000 Pcs.		60.4	115.3	142.8	197.7	282.30	365.0	281.8

Table 3 : P.F. ASTM F436M High Strength Structural Washers Dimensions

Bolt Size		M16	M20	(M22)	M24	(M27)	M30	M36
d	Min.	18.00	22.00	24.00	26.00	30.00	33.00	39.00
d	Max.	18.40	22.50	24.50	26.50	30.50	33.60	39.60
D	Max.	34.00	42.00	44.00	50.00	56.00	60.00	72.00
D	Min.	32.40	40.40	42.40	48.40	54.10	58.10	70.10
H	Max.	4.60	4.60	4.60	4.60	4.60	4.60	4.60
H	Min.	3.10	3.10	3.40	3.40	3.40	3.40	3.40
Weight Kg./- 1000 Pcs.		20.3	31.3	33.2	44.7	54.8	61.4	89.7

Table 4 : Mechanical Properties of H.S.S. Bolts

Thread Size	Stress Area	Property Class 8.8			Property Class 10.9
Thread Size	Stress Area	Ultimate Load (Min)	Proof Load (Min)	Hardness	Ultimate Load (Min)	Proof Load (Min)	Hardness
	Mm2	Newtons	Newtons	HRC	Newtons	Newtons	HRC
M16	157	125600	91060	22 32	163280	130310	33 - 39
M20	245	203350	147000	23 34	254800	203350
M(22)	303	251490	181800		315120	251490
M24	353	292990	211800		367120	262990
(M27)	459	380970	275400		477360	380970
M30	561	465630	336600		583440	465630
M36	817	678110	490200		849680	678110

Table 5 : Mechanical Properties of H.S.S. Nuts

Thread Size	Property Class 8		Property Class 10
Thread Size	Proof Load Newtons	Hardness	Proof Load Newtons	Hardness
M16	168900	HRB 89 to HRC 30	195500	HRC 26 to HRC 36
M20	263400		305000
M(22)	325700		377200
M24	379500		439500
(M27)	493400		571500
M30	603100		698400
M36	878300		1017200