Bolt As Per Drawing / Customized

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Bolts As Per Drawing represent our core capability to manufacture bespoke fastening solutions for critical applications where off-the-shelf standards suffice. Whether it is a unique head geometry for a legacy turbine, a non-standard thread pitch for a chemical reactor, or a specialized shoulder bolt for aerospace landing gear, we precision-engineer fasteners strictly according to your engineering blueprints. At Inconel Fasteners, we utilize advanced 5-axis CNC machining, wire EDM, and hot forging to produce custom bolts with tolerances as tight as ±0.01mm. We specialize in working with difficult-to-machine superalloys like Inconel 718, ensuring that even your most complex prototypes or replacement parts meet the rigorous mechanical properties of the original design.

Detailed Specifications

Manufacturing Range
Dia: M3 to M200 Length: 5mm to 6000mm Micro Fasteners Available
Design Source
Per Customer Drawing (CAD/PDF) Reverse Engineering from Sample Modified Standard
Special Thread Capability
ACME / Trapezoidal Left Hand Threads Multi-Start Threads Square Threads Non-Standard Pitch
Tolerance Standards
ISO 2768 (General Machining) Aerospace Tolerances H7 / g6 Fits
Manufacturing Process
5-Axis CNC Machining CNC Turning & Milling Wire Cut EDM Precision Grinding
Raw Material Origin
Indian Origin European Origin Japanese Origin US Origin
Finish Part Origin
Made in India Custom Origin per Request
Surface Coating
Silver Plating Gold Plating (Electronics) Electropolishing PTFE / Xylan Nitriding
Marking
Laser Marking (Custom Text) Part Number Engraving QR Code / Data Matrix
Heat Treatment Details
Vacuum Heat Treatment Solution Annealing Age Hardening
Delivery Terms
Ex-Works (EXW) FOB CIF DDP Air Cargo (Urgent)
Packing Type
Individual Bubble Wrap Foam Lined Boxes Vacuum Packing
Payment Methods
L/C (Letter of Credit) T/T (Wire Transfer)
Certifications
ISO 9001:2015 MTC EN 10204 3.1 Dimensional Report (CMM)
Additional Certifications
NABL Lab Reports Surface Roughness Report First Article Inspection (FAI)
Mandatory Requirements
Approved Drawing / Blueprint Positive Material Identification (PMI) 100% Visual Inspection

Manufacturing Capabilities (Custom Bolts)

Parameter Metric Capability Imperial Capability Tolerance Standard
Diameter Range M2 to M200 #2 to 8.00" h7, g6, f7 (Shaft)
Length Range 5mm to 6000mm 0.20" to 20 Feet ±0.1mm to ±1.0mm
Thread Types Coarse, Fine, Trap, ACME UNC, UNF, UNEF, Stub ACME 6g, 4h, Class 2A/3A
Surface Finish (Ra) 0.4µm to 6.3µm 16 to 250 µin Ground / Turned
Concentricity 0.01mm Max 0.0005" Max Total Runout (TIR)
Head Types Hex, 12-Point, Socket Cap, Square, T-Head, Eye, Countersunk, Custom Profile

Chemical Composition (Common Custom Grades)

Grade Ni (Nickel) Cr (Chromium) Mo (Molybdenum) Nb (Niobium) Fe (Iron) Other Elements
Inconel 718 50.0 - 55.0% 17.0 - 21.0% 2.8 - 3.3% 4.75 - 5.5% Balance Ti 0.65 - 1.15%
Inconel 625 58.0% Min 20.0 - 23.0% 8.0 - 10.0% 3.15 - 4.15% 5.0% Max Al 0.4% Max
Inconel A286 24.0 - 27.0% 13.5 - 16.0% 1.0 - 1.5% - Balance Ti 2.0%

Mechanical Properties (Custom Capabilities)

Grade Tensile Strength
(MPa) Min
Yield Strength
(0.2% Offset) Min
Elongation
(%) Min
Hardness
(HRC / HB)
Inconel 718 1275 1035 12% 36 - 44 HRC
Inconel A286 895 - 1000 585 - 750 15% 24 - 35 HRC
Inconel 625 827 414 30% 145 - 220 HB

DIN Standards for Bolts

Comprehensive list of dimensional standards for industrial fasteners.

Series 100 - 900
  • DIN 186
  • DIN 188
  • DIN 261
  • DIN 444
  • DIN 479
  • DIN 580
  • DIN 601
  • DIN 603
  • DIN 604
  • DIN 605
  • DIN 610
  • DIN 787
  • DIN 797
  • DIN 931
  • DIN 933
  • DIN 933 SZ
Nuts & Precision
  • DIN 431
  • DIN 439 A/B
  • DIN 466
  • DIN 467
  • DIN 508
  • DIN 547
  • DIN 548
  • DIN 555
  • DIN 557
  • DIN 562
  • DIN 582
  • DIN 798
  • DIN 917
  • DIN 934
  • DIN 935
  • DIN 936
  • DIN 937
Studs & Washers
  • DIN 525
  • DIN 835
  • DIN 938
  • DIN 939
  • DIN 940
  • DIN 976
  • DIN 125 A/B
  • DIN 126
  • DIN 127 A/B
  • DIN 433
  • DIN 440 R/V
  • DIN 6796
  • DIN 7980
  • DIN 9021
Extended & Heavy Series
DIN 3570
DIN 7968
DIN 7969
DIN 7990
DIN 7992
DIN 70613
DIN 70614
DIN 80705
DIN 6331
DIN 6334
DIN 6915
DIN 6924