Bolt Flanges

Flanges :: Flange Standard, Fitting Standard, Pipe Standard, Valve Standard
ANSI Flange	DIN Flange	EN Flange
ASME Flange	JIS/KS Flange	GB Flange
GOST Flange	BS Flange	UNI / Api Flange
Flanges ::
Blind Flanges	Reducing Threaded Flanges	Lap Joint Flanges
Flange Gaskets	Threaded Flanges	Socketweld Flanges
Flanges Bolts	Ring Flange	Spectacle Blind Flanges
Weld Neck Flanges	Orifice Flange	Slip-On-Flanges
High Hub Blinds Flanges

Metal Industries is one of the oldest manufacturers, dealer, distributor, stockist & suppliers of Blind Flanges, Reducing Threaded Flanges, Lap Joint Flanges, Flange Gaskets, Threaded Flanges, Socketweld Flanges, Flanges Bolts, Ring Flange, Spectacle Blind Flanges, Weld Neck Flanges, Orifice Flange, Slip-On-Flanges, High Hub Blinds Flanges, which are manufactured using superior grade of steel like SS Flanges / Stainless Steel Flange, 310 Flanges, 321 Flanges, 202 Flanges, 347 Flanges, 304 Flange, 316 Flanges, 316L Flanges., These Flanges are most durable and manufactures to fit in different size of Pipes. Engineers & World's Best Project Consultants use these Flanges in Machined Components, Metal Industries manufacturing Flanges & supplying to Government sector companies since 2 decades, we are approved vendor of Flanges in top notch government sector companies like ONGC, Indian Oil, NTPC, BHEL, ONGC, HPCL BPCL etc.we are also Saudi Aramco approved supplier of Flanges, we have supplied Flanges to companies involved in Equipment Manufacturing, Mining, Oil Refineries, Chemical manufacturing, Steel and Aluminum Manufacturing, Utilities and Transportation, and Industrial Construction We Also Supply & Maintain huge stock of Other Grades of Flanges like Alloy Steel Flange, A182 F1 / F5 / F9 / F11 / F22 / F91 FLANGES, Nickel Alloy 200 Flanges, Nickel Alloy 201 Flanges, S32750 Duplex Steel UNS S31803 Flanges, Flanges, Duplex Steel UNS S32205 Flanges, Carbon Steel Flanges, Copper Nickel Flange, Inconel 600, Incolloy 800 Flanges, Hastelloy, Monel 400 Flanges, ALLOY 20 FLANGES.

Flanges Bolts

Hex flange bolts are used on vehicle frames, especially truck frames, and anywhere a hex washer head bolt is needed. The large bearing surface distributes clamping force over a large area, allowing them to be used with irregular and oversized holes. Hex flange bolts are often used with Grade G Flange Style Lock Nuts to create a bolt/nut system that resists loosening and spans a wide area. They are also known as: 

hex frame flange bolts, hex washer frame bolts, hex flange screws.

 Serrated hex flange bolts have teeth under their head that grip the mating surface to resist loosening. 12 point flange bolts, also called 

counterbore cap screws,

are used in aircraft and aftermarket automotive applications because they are easily installed using a 12 point socket and pneumatic impact wrench, while motorcycle enthusiasts like the small, externally wrenched decorative head.

Threads are standard right-hand. Hex and 12 point are available in Unified inch coarse series (UNC, Unified National Coarse) and Unified inch fine (UNF, Unified National Fine); serrated hex in Unified inch coarse. Flange bolts are partially and fully threaded depending on size and length. The point for hex types is chamfered or rounded; for 12 point, it's flat and chamfered.

Typical sizes for hex range from 3/8" to 3/4"; #10 to 1/2" for serrated hex; and 1/4" to 1" in diameter for 12 point. Lengths for hex span from about 1" to 5"; 3/8" to 2 1/2" for serrated hex; and 1/2" to 7" for 12 point. Measure length from the underhead flange bearing surface to the threaded end of the bolt.

The flange bolt should be long enough to allow at least two full threads to extend beyond the nut face after tightening, which ensures full thread engagement with the nut. Conversely, there should be two full threads exposed on the head side of the nut to make sure the nut can be properly tightened. More exposed threads within the grip (the area between the head and nut) will result in a "springier" bolt. It is also recommended that threads not be in the shear plane(s).

The size of the head varies with the size of the flange bolt; the flange diameter of hex types is over 2.1 times the bolt size whereas 12 point heads are smaller at just 1.5 times. Tables 1 and 2 list head width across flats, which is wrench size, and across corners, flange diameter and head height.

Hex serrated, Grade 5, steel, zinc plated; hex, 150,000 PSI, steel, plain finish; and 12 point, alloy steel, plain finish, are common types. 150,000 is sometimes abbreviated 150M—"M" is the Roman numeral for 1,000. You may also see 150K—"K" refers to kilo, also an abbreviation for 1,000, which is based on a French modification of the Greek word chilioi. (Plain finish is unplated so there is no surface treatment to inhibit rust.)

When selecting a nut for use with a graded flange bolt, it is very important that the nut be the same grade as the bolt; one grade higher is also acceptable as one source states. Use hardened flat washers with bolt Grades 5 and 8. As for lock washers, which are often split (helical spring) type, use regular for Grades 2 and 5 bolts and high strength alloy steel for Grade 8.

Always follow the manufacturer's recommendations regarding bolt reuse, thread lubricants/locking compounds and torque values.

Refer to Industrial Fasteners Institute Standards IFI-111, Hex Flange Screws, and IFI-115, Flange 12-Point Screws, for specifications relating to flange bolts.

Hex Flange Bolt Dimensions
Nominal Size		Head Width		Flange Diameter	Head Height
		Across Flats	Across Corners
Fraction	Decimal	Basic	Min	Max	Max
1/4	0.2500	3/8	13/32	9/16	9/32
5/16	0.3125	1/2	35/64	11/16	5/16
3/8	0.3750	9/16	5/8	13/16	25/64
7/16	0.4375	5/8	11/16	15/16	29/64
1/2	0.5000	3/4	53/64	1 1/16	33/64
9/16	0.5625	13/16	57/64	1 3/16	9/16
5/8	0.6250	15/16	1 1/32	1 21/64	5/8
3/4	0.7500	1 1/8	1 15/64	1 19/32	47/64

Table 1. Hex Flange Bolt Dimensions. Nominal size in fractional and decimal inches, head width across flats and corners, flange diameter and head height, in inches.

12 Point Flange Bolt Dimensions
Nominal Size		Head Width		Flange Diameter	Head Height
		Across Flats	Across Corners
Fraction	Decimal	Max	Min	Max	Max
1/4	0.2500	1/4	9/32	3/8	17/64
5/16	0.3125	5/16	11/32	15/32	5/16
3/8	0.3750	3/8	27/64	9/16	3/8
7/16	0.4375	7/16	31/64	21/32	7/16
1/2	0.5000	1/2	9/16	3/4	1/2
9/16	0.5625	9/16	41/64	27/32	9/16
5/8	0.6250	5/8	45/64	15/16	5/8
3/4	0.7500	3/4	27/32	1 1/8	3/4
7/8	0.8750	7/8	63/64	1 5/16	7/8
1	1.0000	1	1 1/8	1 1/2	1

Table 2. 12 Point Flange Bolt Dimensions. Nominal size in fractional and decimal inches, head width across flats and corners, flange diameter and head height, in inches.

FLANGE BOLTING DIMENSION

150 LB BOLT SET BOLT SIZE X QTY	FLANGE PIPE SIZE	300 LB BOLT SET BOLT SIZE X  QTY
1/2"x2" X  4	1/2"	1/2"x2" X  4
1/2"x2" X  4	3/4"	5/8"x2-1/2" X  4
1/2"x2" X  4	1"	5/8"x2-3/4" X  4
1/2"x2" X  4	1-1/4"	5/8"x2-3/4" X  4
1/2"x2" X  4	1-1/2"	3/4"x3" X  4
5/8"x2-1/2" X  4	2"	5/8"x3"  X 8
5/8"x2-3/4" X  4	2-1/2"	3/4"x3-1/2" X  8
5/8"x2-3/4" X  4	3"	3/4"x3-3/4" X  8
5/8"x3" X  8	4"	3/4"x4" X  8
3/4"x3-1/4" X  8	5"	3/4"x4" X  8
3/4"x3-1/4" X  8	6"	3/4"x4" X 12
3/4"x3-1/2" X  8	8"	7/8"x4-1/2" X 12
7/8"x3-3/4" X 12	10"	1"x5-1/4" X 16
7/8"x4" X 12	12"	1-1/8"x5-1/2" X 16
1"x4-1/2" X 12	14"	1-1/8"x6" X 20
1"x4-1/2" X 16	16"	1-1/4"x6-1/2" X 20
1-1/8"x5" X 16	18"	1-1/4"x6-1/2" X 24
1-1/8"x5" X 20	20"	1-1/4"x6-3/4" X 24
1-1/4"x5-1/2" X 20	24"	1-1/2"x7-3/4" X 24
1-1/4"x6-1/4" X 28	30"	1-3/4"x8-1/2" X 28
1-1/2"x7" X 32	36"	2"x9-1/2" X 32
1-1/2"x7-1/2"  X 36	42"	2"x10-1/4" X 36
1-1/2"x7-3/4" X 44	48"	2"x10-3/4" X 40
1-3/4"x7-3/4" X 44	54"
1-3/4"x8-1/4" X 52	60"
1-3/4"x9-1/2" X 60	72"
2"x10-1/2" X 64	84"

Flanges Bolts Price

flange hex bolts
FOB Price: US$0.00025 to 0.8 / Piece

DIN6921 Zinc Plated Hex Flange Bolt
FOB Price: US$900 to 1800 / Ton

Hexagon flange bolt
FOB Price: US$0.014 to 0.045 / Piece

8.8 hexagon flange bolts
FOB Price: US$1350 to 1700 / Ton

Gr8.8 Hex flange bolt DIN6921
FOB Price: US$1000 to 2200 / Ton

DIN6921 hexagon Flange Bolt
FOB Price: US$900 to 1900 / Ton

DIN6921 Galvanized Hex Flange Bolt In Hardware
FOB Price: US$900 to 1900 / Ton

DELIVERY: Ex Stock or 15-30 DAYS or AS COMMUNICATION
Pay Mode Terms: L/C (Letter of Credit), T/T (Bank Transfer)
Port of Dispatch : CST Air Port, Mumbai & Nhava Seva Sea Port
Production Capacity : 500 Metric Tons/Month

 

We export to: Exporter & Suppliers of Bolt Flanges in uae, saudi arabia, qatar, oman, malaysia, sinagapore, indonesia, sudan, israel, south africa, kenya etc.

Flanges Packing

Metal Industries also emphasis on the packaging . The Bolt Flanges are packed in wooden corrugated boxes foiled in bubble wraps.

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We are exporting Bolt Flanges to more than 40 countries like UAE, EGYPT, TURKEY, uae, saudi arabia, qatar, oman, malaysia, sinagapore, indonesia, sudan, israel, south africa, kenya, Malaysia, Iran, Iraq, Saudi Arabia, Bahrain, Qatar, yemen, Kuwait, Argentina, Palestin, Algeria, Italy, Tunisia, Oman, Mauritania, USA, Bangladesh, Lebanon, Canada, Vietnam, INDIA, Sudan, Syria, Morocco, Libya, Jordon, And many more.

we also have our sales representatives to understand the requirements of our clients, we maintain ready stock of Bolt Flanges in Cities like Abu Dhabi, Riyadh, Manama, Muscat, Doha, Dubai, Damascus, Khartoum, Beirut, Jeddah, Aleppo, Alexandria, Algiers, Amman, Mosul, Cairo, Baghdad, Dammam, Casablanca, Basra, Mecca, Tripoli, Rabat, Sana'a, Arbil, Hilla, Port Said, Marrakech, Medina, Al Hudaydah, Omdurman, Damietta, Homs, Kafr Dawar, Benghazi, Fez, Bahri, Nouakchott, Sulaymaniyah, Safi, Zarqa, Oran, Kirkuk, Ismailia, Tunis, Agadir, Tangier, Sharjah, Shibin El Kom, Misratah, Matrah, Aden, Najaf, Karbala, Latakia, Sousse, Meknes, Gaza, Fallujah, Aswan, Kassala, Al-Ubayyid, Sohag, Kuala Lumpur, Penang, Kuching & many more.