BS EN 14399-6 Chamfered Washers

BS EN 14399-6 Composition of high-strength structural bolting assemblies and component marking

Type of bolting assembly		System HR				System HV		System HRC
General requirements		EN 14399-1
Suitability for preloading		EN 14399-2 and, if any, additional testing specified in the product standard
Bolt and nut		EN 14399-3		EN 14399-7		EN 14 399-4	EN 14399-8	EN 14399-10
Marking	Bolt	HR8.8	HR10.9	HR8 .8	HR10.9	HV10.9	HVP10.9	HRC 10.9
Marking	Nut	HR8 or HR10	HR10	HR8 or HR 10	HR10	HV 10	HV 10	HR 10	HRD 10
Washers		EN 1439 9-5^a or EN 14399-6				EN 14399-6			EN 14399-5 8 or EN 14399-6
Marking		H or HR^b				H or HV^b		H or HR^b	H or HR^b or HD ^c
Direct tension indicator and nut face washer or bolt face washer, if any		EN 14399-9						Not applicable
Marking	Direct tension indicator	H8	H10	H8	H10	H10
	Nut face washer	HN				HN
	Bolt face washer	HB		Not applicable		HB
a EN 14399-5 can on ly be used under the nu t. b At the choice of the manufacturer. c Manda tory mark for washers with en larged outer d iame ter according to EN 14399-5 only

BS EN 14399-6 Dimensions

Nominal size ^d (nominal thread diameter of associated bolts)		12	(14)a	16	(18)a	20	22	24	27	30	36
d₃	min.	13	15	17	19	21	23	25	28	31	37
d₃	max.	13,27	15,27	17,27	19,33	21,33	23,33	25,33	28,52	31,62	37,62
d₁	min.	23,48	27,48	29,48	33,38	36,38	38,38	43,38	49,00	54,80	64,80
d₁	max.	24	28	30	34	37	39	44	50	56	66
h	nom.	3	3	4	4	4	4	4	5	5	6
	min.	2,7	2,7	3,7	3,7	3,7	3,7	3,7	4,4	4,4	5,4
	max.	3,3	3,3	4,3	4,3	4,3	4,3	4,3	5,6	5,6	6,6
e	nom.= min .	0,5	0,5	0,75	0,75	0,75	0,75	0,75	1	1	1,25
e	max.	1,0	1,0	1,5	1,5	1,5	1,5	1,5	2,0	2,0	2,5
c	min.	1,6	1,6	1,6	2,0	2,0	2,0	2,0	2,5	2,5	2,5
c	max.	1,9	1,9	1,9	2,5	2,5	2,5	2,5	3,0	3,0	3,0
a Sizes in brackets are non-preferred sizes.

BS EN 14399-6 Specifications and reference standards

Material		Steel
General requirements		EN 14399-1 and EN 14399-2
Mechanical properties	Hardness range	300 HV to 370 HV
Tolerances	Product grade	A
Tolerances	European Standard	EN ISO 4759-3
Finish-Coating^a	Uncoated	as processed^b
	Hot dip galvanized	EN ISO 10684
	Others	to be agreed^c
Workmanship		Parts shall be uniform and free of irregularities or detrimental defects. No protruding burrs shall appear on the washer.
Acceptability		For acceptance procedure, see EN ISO 3269.
a Attention is drawn to the need to consider the risk of hydrogen embrittlement when selecting an appropriate surface treatment process (e.g. cleaning and coating), see relevant coating standards. b “As processed“ means the normal finish resulting from heat treatment with a residual coating of light oil. c Other coatings may be negotiated between the purchaser and the manufacturer provided they do not impair the mechanical properties or the functional characteristics. Coatings of cadmium or cadmium alloys are not permitted.

BS EN 14399-6 Bolting Surface Treatment Specifications

Renowned Brands

PTFE MOLYKOTE XYLAN 1014 XYLAN 1424 XYLAN 1070 Ceramic XYLAR 101 XYLAR 2 Dacromet

BS EN 14399-6 Bolting Components Marking

Product Shall be Marked with our manufacturing trade mark "TorqBolt" or "TB" along with the designated Grade.
Grade and manufacturer’s identification symbols shall be applied to one end of studs and to the heads of bolts and screws of all sizes. (If the available area is inadequate, the grade symbol may be marked on one end and the manufacturer’s identification symbol marked on the other end.) For bolts and screws smaller than 1⁄4 in. [6 mm] in diameter and studs smaller than 3⁄8 in. [10 mm] in diameter and for 1⁄4 in. [6 mm] in diameter studs requiring more than a total of three symbols, the marking shall be a matter of agreement between the purchaser and the manufacturer.

ASME Dimensional Standards

BS EN 14399-6 Bolting Certifications

EN 10204 3.1
EN 10204 3.2
PED 2014/68/EC
MERKBLATT AD 2000 W2/W7/W10
API 20 E BSL 1/ BSL 2
NACE MR 0175
NACE MR 0103