
With that and the properties of stainless steel, you get one of the most powerful fasteners for tough jobs when you use them. A lot of stainless steel, carbon steel, and alloy steel make it strong enough to stand up to a lot of wear and tear and to keep it from getting dirty. It's also available in bulk, which makes it a cheap option for any situation.
STANDARD SPECIFICATION
- Grade:-18-8 Stainless Steel, 4.8, 8.8, A2, A4, A2-70; A4-70; A4-80 Flange Bolts
- British standards:-BS6105 (old: BSENISO 3506) which covers Part 1 bolts, screw and Us, part 2 nuts and part 4 tapping screws.
- Stainless Steel Flange Bolts Size:- Cold Froging : M2-M24, Hot forging M24-M100, 1-1/2” Dia, up to 1100mm lg, Machining and CNC for Customized connecting element: up to M100 / 4” Dia, up to 1500mm lg
- Length:-3 mm to 200 mm
- Size:-M10 To M100
- Stainless Steel Bolts, Studs Threads::- METRIC, BSW, BSF, UNC, UNF or as required
- Standard:-DIN, ISO, JIS, GB, IS, BS, ASTM and all International Standards ANSI – American National Standards Institute ANSI B 18.2.4 2M, ANSI B 28.2.4 1M, Flange Boltslength are defined in ASME B16.5 standard, Hex nuts are defined in ASME B18.2.2, ASME B18.5, GB/T5782, GB/T5783, GB5783
- DIN Standard:- B.S. DIN 933, DIN 931, DIN 934, DIN 912, DIN 603, DIN 6923, DIN 970, DIN 7981, DIN 7982, DIN916, DIN 913, DIN 7985
- UTS – Unified Thread Standard:- UNC, UNF, UNEF, UNS, NPT, NPTF
- Dimensions:- ASME B18.6.3 **Exception: screws 6 inches and shorter are fully threaded.
- ISO – International Organization for Standardization:- ISO 4032, ISO 4033, ISO 4017, ISO7380 JIS standards
- Tolerance:- +/-0.01mm to +/-0.05mm
- Head drive:- Phillips, Slotted, Phillips/Slot, Six-Lobe, etc
- Finishing:- Zinc (yellow, white, blue, black), black oxide, Geometry, Dacroment, anodizing, nickel plated, plated zinc-nickel, Stainless steel: Passivated Self-Colour, Hot Dip Galvanised (HDG), Bright Zinc Plated (BZP), Sherardized, Stainless Steel, Mechanically Applied coating and some special one like DACROMET
- Finish:-Per ASTM A380/A380M
- Production process:-Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing
- Stainless Steel bolting materials Surface Coating:-Hot Dipped Galvanizing Flange Bolts, Phosphate Flange Bolts, Teflon Flange Bolts,Ptfe Coated Flange Bolts, Xylon Flange Bolts, Zinc Phosphate Flange Bolts, Manganese Phosphate, Zinc Electro Plating (Hexavalent or Trivalent Chrome), ZAC (Zinc Alluminium Flake Coating), Cadmium Flange Bolts. All surface finishes can be supplied, including Zinc, Galvanised, Sherardized, Electroless Nickel, Dacromet, Geomet & PTFE.
- Surface treatment:-Passivation, Polish, Anodizing, Sand blasting, Black oxide coating, Heat-disposing, Rust preventive oil, Hot dip galvanized Flange Bolts, Electroplating (color, blue, white, black zinc, Ni, Cr, tin, silver)
- Top Manufacturers:-SPAX® Screws, GKW, Unbrako, Kundan, APL, Sundaram Precision, Infasco, EBY Fastener Etc.
- Stainless Steel Flange Bolts Packing:-IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request
- Why choose us?:-Best Price in India and compare to China, Professional technical team, High precision threads, Strong production line, Micro Metals will be your reliable partner
- Test Certificate:-Manufacturer Test Certificate as per EN 10204 / 3.1, Tensile testing to ISO 898-1, Nut proof load testing to ISO 898-2, Suitability for preloading to EN 14399-2, Suitability test for calibrated preload to EN 14399-10, Charpy Impact testing in accordance with ISO 148-1, Hardness testing to ISO 6508-1, Tri-Roll Thread Comparators, Calibrated gauges and tools
- Uses & application:-Wind tower, Nuclear power, Railway, Automotive industry, Construction, Electronic industry
- Stainless Steel Flange Bolt :-AISI 302, 304, 304L,316, 316L, 310, 317, 316S31,317L, 321, 347, 410, 420,904L etc.
- Duplex & Super Duplex Steel Flange Bolt:-ASTM / ASME A815 UNS No. S31803, UNS No. S 32205, UNS No. S 31254, UNS No. S 31550, UNS No. S 32750, and UNS No. S 32760
- Carbon Steel Flange Bolt:-ASTM A307, A193
- Alloy Steel Flange Bolt:-ASTM / ASME A/SA 193 / 194 B 6, B 7/ B 7M, B 16, 2, 2HM, 2H, GR 6, B 7, B 7M
- Nickel Alloy Flange Bolt:-ASTM / ASME SB 160 / 164 / 425 / 166 / 446 / 574 / 472 UNS 2200 (NICKEL 200) / UNS 2201 (NICKEL 201), UNS 4400 (MONEL 400), UNS 8825 (INCONEL 825), UNS 6600 (INCONEL 600) / UNS 6601 (INCONEL 601), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276), UNS 8020 (ALLOY 20 / 20 CB 3)
Flange Bolt Diameter |
Head/Wrench Size* |
---|---|
Hex Flange Bolt (IFI-111) and Hex Flange Lag |
|
1/4″ | 3/8″ |
5/16″ | 1/2″ |
3/8″ | 9/16″ |
7/16″ | 5/8″ |
1/2″ | 3/4″ |
9/16″ | 13/16″ |
5/8″ | 15/16″ |
3/4″ | 1-1/8″ |
* This is the width across the flats. |

d | ds | s | dc | k | b | L | |||
Nominal Diameter | Thread Pitch | Body Diameter | Width Across Flats | Flange Diameter | Head Height | Thread Length | Lengths Under the Head | ||
(coarse) | Max. | Min. | Max. | Min. | Max. | Max. | Nominal | ||
M6 | 1 | 6 | 5.82 | 10 | 9.78 | 14.2 | 6.6 | 18 | 10-60 |
M8 | 1.25 | 8 | 7.78 | 13 | 12.73 | 18 | 8.1 | 22 | 12-80 |
M10 | 1.5 | 10 | 9.78 | 15 | 14.73 | 22.3 | 9.2 | 26 | 16-80 |
M12 | 1.75 | 12 | 11.73 | 16 | 15.73 | 26.6 | 11.5 | 30 | 25-120 |
M14 | 2 | 14 | 13.73 | 18 | 17.73 | 30.5 | 12.8 | 34 | 30-120 |
M16 | 2 | 16 | 15.73 | 21 | 20.67 | 35 | 14.4 | 38 | 40-120 |
M20 | 2.5 | 20 | 19.67 | 27 | 26.67 | 43 | 17.1 | 46 | 40-120 |
LENGTH | DIAMETER |
||||||
M16 | M20 | M22 | M24 | M27 | M30 | M36 | |
40 | 10.28 | ||||||
45 | 11.07 | 180.30 | |||||
50 | 11.86 | 19.25 | 25.20 | ||||
55 | 12.65 | 20.50 | 26.69 | 33.74 | |||
60 | 13.44 | 21.73 | 28.18 | 35.22 | 48.09 | ||
65 | 14.23 | 22.96 | 29.67 | 37.29 | 50.34 | ||
70 | 15.02 | 24.19 | 31.16 | 39.07 | 52.58 | 67.25 | |
75 | 15.81 | 25.43 | 32.66 | 40.84 | 54.83 | 70.03 | 108.91 |
80 | 16.60 | 26.66 | 34.15 | 42.62 | 57.08 | 72.80 | 112.90 |
85 | 17.39 | 27.89 | 35.64 | 44.39 | 59.33 | 75.58 | 116.90 |
90 | 18.17 | 29.13 | 37.13 | 46.17 | 61.57 | 78.35 | 120.89 |
95 | 18.96 | 30.36 | 38.62 | 47.94 | 63.82 | 81.13 | 124.89 |
100 | 19.75 | 31.59 | 40.12 | 49.72 | 66.07 | 83.90 | 128.88 |
110 | 21.14 | 33.77 | 42.78 | 52.85 | 68.56 | 88.84 | 136.20 |
120 | 22.72 | 36.24 | 45.77 | 56.41 | 73.06 | 94.39 | 144.19 |
130 | 24.30 | 38.70 | 48.75 | 59.96 | 77.55 | 99.94 | 152.18 |
140 | 25.88 | 41.17 | 51.73 | 63.51 | 82.05 | 105.49 | 160.17 |
150 | 27.46 | 43.93 | 54.72 | 67.06 | 86.54 | 111.04 | 168.16 |
160 | 29.03 | 46.10 | 57.70 | 70.61 | 91.04 | 116.59 | 176.15 |
170 | 30.61 | 48.57 | 60.69 | 74.16 | 95.53 | 122.14 | 184.14 |
180 | 32.19 | 51.03 | 63.67 | 77.71 | 100.03 | 127.69 | 192.13 |
190 | 33.77 | 53.50 | 66.65 | 81.26 | 104.52 | 133.24 | 200.12 |
200 | 35.35 | 55.96 | 69.44 | 84.82 | 109.02 | 138.79 | 208.11 |
210 | 113.52 | 144.34 | 216.10 | ||||
220 | 118.01 | 149.89 | 224.09 | ||||
230 | 122.51 | 155.44 | 232.08 | ||||
240 | 127.00 | 160.99 | 240.07 | ||||
250 | 131.50 | 166.54 | 248.06 | ||||
260 | 135.99 | 172.09 | 256.05 | ||||
270 | 140.49 | 177.64 | 264.04 | ||||
280 | 144.98 | 183.19 | 272.03 | ||||
290 | 149.48 | 188.74 | 280.02 | ||||
300 | 153.97 | 194.29 | 288.01 |
TYPES OF FLANGE BOLTS











