What are hexagon flange bolts, and what sets them apart from regular bolts
Hexagon flange bolts (sometimes referred to as hex flange screws or flanged hex head bolts ) are fasteners used extensively across many industries and construction projects, offering increased load distribution over a larger surface area and decreasing risk for material damage during installation. Their hexagonal head features an integral washer-like flange which serves multiple functions - providing larger bearing surface to spread loads evenly, acting as built-in washer to protect connected material, and simply being easier for installation purposes!
As opposed to regular bolts with separate washers, hexagon flange bolts offer greater convenience and efficiency during assembly. Their unique flange acts as a stop, preventing the bolt from passing entirely through when tightened; this design feature is particularly helpful where accessibility is limited. Hexagon Flange Bolts have become widely coveted due to their reliability, ease of use, and superior load-bearing capacity - qualities which make them indispensable in many critical applications.
Are hexago n flange bolts suitable for use in high temperature or corrosive environments, and what considerations must be made before use in such settings?
Hexagon Flange Bolts can be safely used in high-temperature or corrosive environments, but special care must be taken for optimal performance and longevity. When exposed to extreme temperatures or corrosive substances, material selection becomes key; stainless steel hexagon flange bolts are often recommended due to their excellent corrosion resistance; these pieces work particularly well in environments containing moisture or chemicals exposure; additionally choosing bolts made with heat-resistant properties like alloy steel can ensure their reliability in high-temperature applications.
Proper installation and maintenance practices are of utmost importance. To select appropriate bolt materials and grades that meet environmental conditions before use, proper assessments need to be undertaken prior to selecting bolt materials - grade selection being especially essential here as galvanic corrosion may occur when dissimilar metals come into contact. Regular inspections and maintenance routines should also be implemented, in order to detect corrosion or wear early and schedule replacement when required; additionally protective coatings or lubricants can help shield against harsh environments like corrosion. Furthermore, compatibility verification between bolt material choice and connected materials must be verified as galvanic corrosion may result when dissimilar metals come into contact causing galvanic corrosion which could occur from galvanic corrosion occurring between dissimilar metals when they come into contact.
| Metric Size | M10 to M100 |
|---|---|
| Imperial Size | 3/8 to 8" |
| Threads | UNC, UNF, ISO, BSW & ACME. |
| Standards | ASME, BS, DIN, ISO, UNI, DIN-EN |
| Diameter | M8 to M20 |
| Dimensional Standards | 20 mm to 200 mm |
| Length | B18.2.3.4M, ANSI B18.2.1 |
| Bolts Types | Hexagon Flange Bolts |
| Threads | METRIC, BSW, UNC, UNF, BSF or as required |
| Unified Thread Standard (UTS) | UNC, UNF, NPT, UNS, UNEF, NPTF |
| Application | Wind Tower, Nuclear Power, Railway, Automotive Industry, Construction, Electronic Industry |
| Bolts Packaging | Cartoon Box / Wooden Pallet / Wooden Box / Thread Protector |
| Bolts Forming | Hot Forged Bolts & Cold Forged Bolts |
| Certification | Dual Certified As per ASTM & ASME Codes |
DIN 6921 - Hexagon Flange Bolts Metric
| Thread | M5 | M6 | M8 | M10 | M12 | (M14) | M16 | M20 | |
|---|---|---|---|---|---|---|---|---|---|
| size d | - | - | M8 x 1 | M10 x 1,25 | M12 x 1,5 | (M14x1,5) | M16 x 1,5 | M20 x 1,5 | |
| - | - | - | (M10 x 1) | (M10 x 1,25) | - | - | - | ||
| P | 0,8 | 1 | 1,25 | 1,5 | 1,75 | 2 | 2 | 2,5 | |
| C | Min. | 1 | 1,1 | 1,2 | 1,5 | 1,8 | 2,1 | 2,4 | 3 |
| da | Min. | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 20 |
| Max. | 5,75 | 6,75 | 8,75 | 10,8 | 13 | 15,1 | 17,3 | 21,6 | |
| dc | Max. | 11,8 | 14,2 | 17,9 | 21,8 | 26 | 29,9 | 34,5 | 42,8 |
| dw | Min. | 9,8 | 12,2 | 15,8 | 19,6 | 23,8 | 27,6 | 31,9 | 39,9 |
| e | Min. | 8,79 | 11,05 | 14,38 | 16,64 | 20,03 | 23,36 | 26,75 | 32,95 |
| h | Max. | 6,2 | 7,3 | 9,4 | 11,4 | 13,8 | 15,9 | 18,3 | 22,4 |
| m | Min. | 4,7 | 5,7 | 7,6 | 9,6 | 11,6 | 13,3 | 15,3 | 18,9 |
| m´ | Min. | 2,2 | 3,1 | 4,5 | 5,5 | 6,7 | 7,8 | 9 | 11,1 |
| s | Nominal size = max. | 8 | 10 | 13 | 15 | 18 | 21 | 24 | 30 |
| Min. | 7,78 | 9,78 | 12,73 | 14,73 | 17,73 | 20,67 | 23,67 | 29,16 | |
| r | Max. | 0,3 | 0,36 | 0,48 | 0,6 | 0,72 | 0,88 | 0,96 | 1,2 |
| Thread d | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M 20 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| - | - | M8 x 1 | M10 x 1,25 | M12 x 1,5 | M14 x 1,5 | M16 x 1,5 | M20 x 1,5 | |||||||||||
| - | - | - | (M10 x 1) | (M12 x 1,25) | - | - | - | |||||||||||
| l | Shank lengtds | |||||||||||||||||
| nominal dimension | min. | max. | ls min. | lg max | ls min. | lg max | ls min. | lg max | ls min. | lg max | ls min. | lg max | ls min. | lg max | ls min. | lg max | ls min. | lg max |
| 10 | 9,71 | 10,29 | - | 2,4 | ||||||||||||||
| 12 | 11,65 | 12,35 | - | 2,4 | - | 3 | ||||||||||||
| 16 | 15,65 | 16,35 | - | 2,4 | - | 3 | - | 4 | ||||||||||
| 20 | 19,58 | 20,42 | - | 4 | - | 3 | - | 4 | - | 4,5 | ||||||||
| 25 | 24,58 | 25,42 | 5 | 9 | 2 | 7 | - | 4 | - | 4,5 | - | 5,3 | ||||||
| 30 | 29,58 | 30,42 | 10 | 14 | 7 | 12 | - | 8 | - | 4,5 | - | 5,3 | - | 6 | ||||
| 35 | 34,5 | 35,5 | 15 | 19 | 12 | 17 | 6,75 | 13 | - | 9 | - | 5,3 | - | 6 | - | 6 | ||
| 40 | 39,5 | 40,5 | 20 | 24 | 17 | 22 | 11,75 | 18 | 6,5 | 14 | - | 10 | - | 6 | - | 6 | - | 7,5 |
| 45 | 44,5 | 45,5 | 25 | 29 | 22 | 27 | 16,75 | 23 | 11,5 | 19 | 6,25 | 15 | - | 11 | - | 6 | - | 7,5 |
| 50 | 49,5 | 50,5 | 30 | 34 | 27 | 32 | 21,75 | 28 | 16,5 | 24 | 11,25 | 20 | 6 | 16 | - | 12 | - | 7,5 |
| 55 | 54,4 | 55,6 | 32 | 37 | 26,75 | 33 | 21,5 | 29 | 16,25 | 25 | 11 | 21 | 7 | 17 | - | 9 | ||
| 60 | 59,4 | 60,6 | 37 | 42 | 31,75 | 38 | 26,5 | 34 | 21,25 | 30 | 16 | 26 | 12 | 22 | - | 14 | ||
| 65 | 64,4 | 65,5 | 36,75 | 43 | 31,5 | 39 | 26,25 | 35 | 21 | 31 | 17 | 27 | 6,5 | 19 | ||||
| 70 | 69,4 | 70,6 | 41,75 | 48 | 36,5 | 44 | 31,25 | 40 | 26 | 36 | 22 | 32 | 11,5 | 24 | ||||
| 80 | 79,4 | 80,6 | 51,75 | 58 | 46,5 | 54 | 41,25 | 50 | 36 | 46 | 32 | 42 | 21,5 | 34 | ||||
| 90 | 89,3 | 90,7 | 56,5 | 64 | 51,25 | 60 | 46 | 56 | 42 | 52 | 31,5 | 44 | ||||||
| 100 | 99,3 | 100,7 | 66,5 | 74 | 61,25 | 70 | 56 | 66 | 52 | 62 | 41,5 | 54 | ||||||
| 110 | 109,3 | 110,7 | 71,25 | 80 | 66 | 76 | 62 | 72 | 51,5 | 54 | ||||||||
| 120 | 119,3 | 120,7 | 81,25 | 90 | 76 | 86 | 72 | 82 | 61,5 | 74 | ||||||||
| 130 | 129,2 | 130,8 | 80 | 90 | 76 | 86 | 65,5 | 78 | ||||||||||
| 140 | 139,2 | 140,8 | 90 | 100 | 86 | 96 | 75,5 | 88 | ||||||||||
| 150 | 149,2 | 150,8 | 96 | 106 | 85,5 | 98 | ||||||||||||
| 160 | 159,2 | 160,8 | 106 | 116 | 95,5 | 108 | ||||||||||||
| 180 | 179,2 | 180,8 | 115,5 | 128 | ||||||||||||||
| 200 | 199 | 201 | 135,5 | 148 | ||||||||||||||
Hexagon Flange Bolts in Distillery Plants
Hexagon Flange Bolts in Sugar Industries
Hexagon Flange Bolts in Process Industries
Hexagon Flange Bolts in Power Plants
Hexagon Flange Bolts in Refineries
Hexagon Flange Bolts in Petrochemical Plants
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