British Standard - BS4504


	Select Nominal Bore to view details

15	20	25	32	40	50
65	80	100	125	150	200
250	300	350	400		500

Nominal Bore

15

Flange Diameter

PCD

Bolts

Boltsize

Hole Size

Thickness

BS4504-6	80mm	55mm	4	M10	11mm	12mm
BS4504-10	95mm	65mm	4	M12	14mm	14mm
BS4504-16	95mm	65mm	4	M12	14mm	14mm
BS4504-25	95mm	65mm	4	M12	14mm	16mm
BS4504-40	95mm	65mm	4	M12	14mm	16mm


	Back to Nominal Bore index

Nominal Bore

20

Flange Diameter

PCD

Bolts

Boltsize

Hole Size

Thickness

BS4504-6	90mm	65mm	4	M10	11mm	14mm
BS4504-10	105mm	75mm	4	M12	14mm	16mm
BS4504-16	105mm	75mm	4	M12	14mm	16mm
BS4504-25	105mm	75mm	4	M12	14mm	18mm
BS4504-40	105mm	75mm	4	M12	14mm	18mm


	Back to Nominal Bore index

Nominal Bore

25

Flange Diameter

PCD

Bolts

Boltsize

Hole Size

Thickness

BS4504-6	100mm	75mm	4	M10	11mm	14mm
BS4504-10	115mm	85mm	4	M12	14mm	16mm
BS4504-16	115mm	85mm	4	M12	14mm	16mm
BS4504-25	115mm	85mm	4	M12	14mm	18mm
BS4504-40	115mm	85mm	4	M12	14mm	18mm

Back to Nominal Bore index

Nominal Bore

32

Flange Diameter

PCD

Bolts

Boltsize

Hole Size

Thickness

BS4504-6	120mm	90mm	4	M12	14mm	16mm
BS4504-10	140mm	100mm	4	M16	18mm	16mm
BS4504-16	140mm	100mm	4	M16	18mm	16mm
BS4504-25	140mm	100mm	4	M16	18mm	18mm
BS4504-40	140mm	100mm	4	M16	18mm	18mm

Back to Nominal Bore index

Nominal Bore

40

Flange Diameter

PCD

Bolts

Boltsize

Hole Size

Thickness

BS4504-6	130mm	100mm	4	M12	14mm	16mm
BS4504-10	150mm	110mm	4	M16	18mm	16mm
BS4504-16	150mm	110mm	4	M16	18mm	16mm
BS4504-25	150mm	110mm	4	M16	18mm	20mm
BS4504-40	150mm	110mm	4	M16	18mm	20mm

Back to Nominal Bore index

Nominal Bore

50

Flange Diameter

PCD

Bolts

Boltsize

Hole Size

Thickness

BS4504-6	140mm	110mm	4	M12	14mm	16mm
BS4504-10	165mm	125mm	4	M16	18mm	18mm
BS4504-16	165mm	125mm	4	M16	18mm	18mm
BS4504-25	165mm	125mm	4	M16	18mm	20mm
BS4504-40	165mm	125mm	4	M16	18mm	20mm

Back to Nominal Bore index

Nominal Bore

65

Flange Diameter

PCD

Bolts

Boltsize

Hole Size

Thickness

BS4504-6	160mm	130mm	4	M12	14mm	16mm
BS4504-10	185mm	145mm	4	M16	18mm	18mm
BS4504-16	185mm	145mm	4	M16	18mm	18mm
BS4504-25	185mm	145mm	8	M16	18mm	22mm
BS4504-40	185mm	145mm	8	M16	18mm	22mm

Back to Nominal Bore index

Nominal Bore

80

Flange Diameter

PCD

Bolts

Boltsize

Hole Size

Thickness

BS4504-6	190mm	150mm	4	M16	18mm	18mm
BS4504-10	200mm	160mm	8	M16	18mm	20mm
BS4504-16	200mm	160mm	8	M16	18mm	20mm
BS4504-25	200mm	160mm	8	M16	18mm	24mm
BS4504-40	200mm	160mm	8	M16	18mm	24mm

Back to Nominal Bore index

Nominal Bore

100

Flange Diameter

PCD

Bolts

Boltsize

Hole Size

Thickness

BS4504-6	210mm	170mm	4	M16	18mm	18mm
BS4504-10	220mm	180mm	8	M16	18mm	20mm
BS4504-16	220mm	180mm	8	M16	18mm	20mm
BS4504-25	235mm	190mm	8	M20	22mm	26mm
BS4504-40	235mm	190mm	8	M20	22mm	26mm

Back to Nominal Bore index

Nominal Bore

125

Flange Diameter

PCD

Bolts

Boltsize

Hole Size

Thickness

BS4504-6	240mm	200mm	8	M16	18mm	20mm
BS4504-10	250mm	210mm	8	M16	18mm	22mm
BS4504-16	250mm	210mm	8	M16	18mm	22mm
BS4504-25	270mm	220mm	8	M24	26mm	28mm
BS4504-40	270mm	220mm	8	M24	26mm	28mm

Back to Nominal Bore index

Nominal Bore

150

Flange Diameter

PCD

Bolts

Boltsize

Hole Size

Thickness

BS4504-6	265mm	225mm	8	M16	18mm	20mm
BS4504-10	285mm	240mm	8	M20	22mm	22mm
BS4504-16	285mm	240mm	8	M20	22mm	22mm
BS4504-25	300mm	250mm	8	M24	26mm	30mm
BS4504-40	300mm	250mm	8	M24	26mm	30mm

Back to Nominal Bore index

Nominal Bore

200

Flange Diameter

PCD

Bolts

Boltsize

Hole Size

Thickness

BS4504-6	320mm	280mm	8	M16	18mm	22mm
BS4504-10	340mm	295mm	8	M20	22mm	24mm
BS4504-16	340mm	295mm	12	M20	22mm	24mm
BS4504-25	360mm	310mm	12	M24	26mm	28mm
BS4504-40	375mm	320mm	12	M27	30mm	34mm

Back to Nominal Bore index

Nominal Bore

250

Flange Diameter

PCD

Bolts

Boltsize

Hole Size

Thickness

BS4504-6	375mm	335mm	12	M16	18mm	24mm
BS4504-10	395mm	350mm	12	M20	22mm	26mm
BS4504-16	405mm	355mm	12	M24	26mm	26mm
BS4504-25	425mm	370mm	12	M27	30mm	32mm
BS4504-40	450mm	385mm	12	M30	33mm	42mm

Back to Nominal Bore index

Nominal Bore

300

Flange Diameter

PCD

Bolts

Boltsize

Hole Size

Thickness

BS4504-16	460mm	410mm	12	M24	26mm	28mm
BS4504-25	485mm	430mm	16	M27	30mm	34mm
BS4504-40	515mm	450mm	16	M30	33mm	42mm
BS4504-64	530mm	460mm	16	M33	36mm	52mm
BS4504-100	585mm	500mm	16	M39	42mm	68mm

Back to Nominal Bore index

Nominal Bore

350

Flange Diameter

PCD

Bolts

Boltsize

Hole Size

Thickness

BS4504-16	520mm	470mm	16	M24	26mm	30mm
BS4504-25	555mm	490mm	16	M30	33mm	38mm
BS4504-40	580mm	510mm	16	M33	36mm	46mm
BS4504-64	600mm	525mm	16	M36	39mm	56mm
BS4504-100	655mm	560mm	16	M45	48mm	74mm

Back to Nominal Bore index

Nominal Bore

400

Flange Diameter

PCD

Bolts

Boltsize

Hole Size

Thickness

BS4504-16	580mm	525mm	16	M27	30mm	32mm
BS4504-25	620mm	550mm	16	M33	36mm	40mm
BS4504-40	660mm	585mm	16	M36	39mm	50mm
BS4504-64	670mm	585mm	16	M39	42mm	60mm
BS4504-100	715mm	620mm	16	M45	48mm	78mm

Back to Nominal Bore index

Nominal Bore

500

Flange Diameter

PCD

Bolts

Boltsize

Hole Size

Thickness

BS4504-6	645mm	600mm	20	M20	22mm	30mm
BS4504-10	670mm	620mm	20	M24	26mm	38mm
BS4504-16	715mm	650mm	20	M30	33mm	44mm
BS4504-25	730mm	660mm	20	M33	36mm	58mm
BS4504-40	755mm	670mm	20	M39	42mm	72mm


	[Home] [About] [Contact Us] [Products] [Photo Gallery]