Manufacturer & Stockist of Inconel 718 Nuts,
Inconel 718 Fasteners Supplier & Exporter in India
INCONEL 718 NUTS — UNS N07718 / W.NR. 2.4668 DIMENSIONS, PROOF LOAD & WEIGHT SPECS
Ananka Fasteners is a premier Inconel 718 nut manufacturer, fasteners supplier and exporter in India, supporting industrial buyers seeking a certified stockist of Inconel 718 and traceable nickel-alloy fastening hardware. Our manufacturing and supply scope includes ASME B18.2.2 Inconel 718 heavy hex nuts, DIN 934 / ISO 4032 metric hex nuts, DIN 439 / ISO 4035 thin jam nuts, DIN 985 / ISO 7040 nyloc & all-metal lock nuts, DIN 935 slotted castle nuts, DIN 6923 hex flange nuts, and 12-point bi-hex aerospace nuts. Material and governing standards include UNS N07718 nuts, W.Nr. 2.4668 hex nuts, ASTM F467 Grade N07718, ASTM B637, ASTM A1014, AMS 5662 and AMS 5663, alongside NACE MR0175 / ISO 15156 and API 6A718 sour-service compliance. Use the engineering charts below to review Inconel 718 nut dimensions, thread specifications, proof load ratings, make-up torque, weight and mechanical properties. For the complete alloy portfolio, visit our Inconel 718 Fasteners (UNS N07718) hub.
■ Inconel 718 Nuts Manufacturer, Stockist, Supplier & Exporter
We support global project enquiries for Inconel 718 industrial nuts engineered for extreme cryogenic, high-temperature and sour-gas environments across aerospace turbines, subsea oil and gas Christmas trees, BOP stacks, petrochemical reactors and nuclear power generation. Available supply configurations include custom Inconel 718 nuts, AMS 2410 silver-plated Inconel 718 heavy hex nuts, PTFE/Xylan® coated nuts and age-hardened high-tensile nuts manufactured to ASME B18.2.2, DIN 934, ISO 4032 and customer drawings. Please confirm thread pitch (UNC, UNF, 8-UN, Metric Coarse/Fine, or UNJ Class 3B), heat-treatment condition, anti-galling plating and required inspection certificates when requesting a quotation.
■ ASME B18.2.2 Inconel 718 Heavy Hex Nut Dimensions & Proof Load Chart (Imperial)
| NOMINAL SIZE (Inches) | DECIMAL EQUIV (Inches) | UNC / 8-UN PITCH (TPI) | WIDTH ACROSS FLATS (Basic) | WIDTH ACROSS CORNERS (Min) | NUT THICKNESS (Basic) | PROOF LOAD @ 185 KSI (lbs) | WEIGHT (lbs / 100 Pcs) |
|---|---|---|---|---|---|---|---|
| 1/4" | 0.2500 | 20 | 1/2" | 0.556 | 15/64" | 5,880 | 1.22 |
| 5/16" | 0.3125 | 18 | 9/16" | 0.628 | 19/64" | 9,690 | 1.98 |
| 3/8" | 0.3750 | 16 | 11/16" | 0.768 | 23/64" | 14,340 | 3.35 |
| 7/16" | 0.4375 | 14 | 3/4" | 0.840 | 27/64" | 19,660 | 4.45 |
| 1/2" | 0.5000 | 13 | 7/8" | 0.982 | 31/64" | 26,250 | 6.89 |
| 5/8" | 0.6250 | 11 | 1-1/16" | 1.191 | 39/64" | 41,810 | 12.50 |
| 3/4" | 0.7500 | 10 | 1-1/4" | 1.403 | 47/64" | 61,880 | 20.30 |
| 7/8" | 0.8750 | 9 | 1-7/16" | 1.615 | 55/64" | 85,410 | 31.20 |
| 1" | 1.0000 | 8 | 1-5/8" | 1.826 | 63/64" | 112,050 | 44.70 |
| 1-1/8" | 1.1250 | 8 (8-UN) | 1-13/16" | 2.038 | 1-7/64" | 146,150 | 62.40 |
| 1-1/4" | 1.2500 | 8 (8-UN) | 2" | 2.249 | 1-7/32" | 185,000 | 82.60 |
| 1-1/2" | 1.5000 | 8 (8-UN) | 2-3/8" | 2.673 | 1-15/32" | 276,020 | 137.80 |
| 2" | 2.0000 | 8 (8-UN) | 3-1/8" | 3.520 | 1-31/32" | 512,820 | 314.50 |
Engineering Note: Per ASME B16.5 and API 6A bolting standards, ASME B18.2.2 Heavy Hex Nuts are universally specified for pressure-boundary flange joints. For nominal diameters above 1 inch (1-1/8" and larger), the 8-UN constant pitch series (8 TPI) is standard alongside UNC to maximize thread root shear area and ensure uniform preload retention under high-temperature creep conditions.
■ DIN 934 / ISO 4032 Inconel 718 Metric Hex Nut Dimensions (mm)
| NOMINAL THREAD SIZE | COARSE PITCH (mm) | WIDTH ACROSS FLATS (S Max) | WIDTH ACROSS CORNERS (e Min) | NUT HEIGHT DIN 934 (m Max) | NUT HEIGHT ISO 4032 (m Max) | PROOF LOAD @ 1275 MPa (kN) | WEIGHT (kg / 100 Pcs) |
|---|---|---|---|---|---|---|---|
| M6 | 1.00 | 10.00 | 11.05 | 5.00 | 5.20 | 25.6 | 0.26 |
| M8 | 1.25 | 13.00 | 14.38 | 6.50 | 6.80 | 46.7 | 0.55 |
| M10 | 1.50 | 17.00 (16.00*) | 18.90 | 8.00 | 8.40 | 74.0 | 1.22 |
| M12 | 1.75 | 19.00 (18.00*) | 21.10 | 10.00 | 10.80 | 107.5 | 1.82 |
| M16 | 2.00 | 24.00 | 26.75 | 13.00 | 14.80 | 199.8 | 3.50 |
| M20 | 2.50 | 30.00 | 32.95 | 16.00 | 18.00 | 312.1 | 6.75 |
| M24 | 3.00 | 36.00 | 39.55 | 19.00 | 21.50 | 449.4 | 11.55 |
| M30 | 3.50 | 46.00 | 50.85 | 24.00 | 25.60 | 714.8 | 23.40 |
| M36 | 4.00 | 55.00 | 60.79 | 29.00 | 31.00 | 1041.3 | 41.30 |
Dimensional Standard Note (*): Under ISO 4032, M10 and M12 across-flats widths were revised to 16 mm and 18 mm (compared to 17 mm and 19 mm in DIN 934), while nut height (m) was increased across all sizes to prevent internal thread stripping when tightened with 1275 MPa high-tensile Inconel 718 bolts.
■ DIN 439 / DIN 985 / DIN 935 Inconel 718 Jam, Lock & Slotted Castle Nuts (mm)
| NOMINAL SIZE | WIDTH ACROSS FLATS (S) | THIN / JAM NUT HEIGHT (DIN 439 / ISO 4035) | LOCK NUT TOTAL HEIGHT (DIN 985 / ISO 7040) | CASTLE NUT HEIGHT (DIN 935) | FLANGE NUT DIA (DIN 6923 dc Max) |
|---|---|---|---|---|---|
| M6 | 10.00 | 3.20 mm | 6.00 mm | 7.50 mm | 14.20 mm |
| M8 | 13.00 | 4.00 mm | 8.00 mm | 9.50 mm | 17.90 mm |
| M10 | 17.00 | 5.00 mm | 10.00 mm | 12.00 mm | 21.80 mm |
| M12 | 19.00 | 6.00 mm | 12.00 mm | 15.00 mm | 26.00 mm |
| M16 | 24.00 | 8.00 mm | 16.00 mm | 19.00 mm | 34.50 mm |
| M20 | 30.00 | 10.00 mm | 20.00 mm | 22.00 mm | 42.80 mm |
| M24 | 36.00 | 12.00 mm | 24.00 mm | 27.00 mm | 51.00 mm |
| M30 | 46.00 | 15.00 mm | 30.00 mm | 33.00 mm | 63.00 mm |
■ Inconel 718 Nut Assembly Torque & Anti-Galling Tribology Chart (Imperial & Metric)
| NOMINAL THREAD SIZE | PRELOAD @ 65% YIELD (Aged 150 KSI) | PRELOAD @ 65% YIELD (NACE 120 KSI) | TORQUE — AMS 2410 SILVER PLATED (K = 0.15) | TORQUE — NICKEL / MoS2 PASTE (K = 0.16) |
|---|---|---|---|---|
| 1/2" - 13 UNC | 13,835 lbs | 11,068 lbs | 86.5 ft-lbs (Aged) | 69.2 ft-lbs (NACE) | 92.2 ft-lbs (Aged) | 73.8 ft-lbs (NACE) |
| 5/8" - 11 UNC | 22,035 lbs | 17,628 lbs | 172.1 ft-lbs (Aged) | 137.7 ft-lbs (NACE) | 183.6 ft-lbs (Aged) | 146.9 ft-lbs (NACE) |
| 3/4" - 10 UNC | 32,565 lbs | 26,052 lbs | 305.3 ft-lbs (Aged) | 244.2 ft-lbs (NACE) | 325.6 ft-lbs (Aged) | 260.5 ft-lbs (NACE) |
| 7/8" - 9 UNC | 45,045 lbs | 36,036 lbs | 492.7 ft-lbs (Aged) | 394.1 ft-lbs (NACE) | 525.5 ft-lbs (Aged) | 420.4 ft-lbs (NACE) |
| 1" - 8 UNC | 59,085 lbs | 47,268 lbs | 738.6 ft-lbs (Aged) | 590.9 ft-lbs (NACE) | 787.8 ft-lbs (Aged) | 630.2 ft-lbs (NACE) |
| M12 x 1.75 | 56.6 kN | 45.3 kN | 101.9 Nm (Aged) | 81.5 Nm (NACE) | 108.7 Nm (Aged) | 87.0 Nm (NACE) |
| M16 x 2.00 | 105.5 kN | 84.4 kN | 253.2 Nm (Aged) | 202.6 Nm (NACE) | 270.1 Nm (Aged) | 216.1 Nm (NACE) |
| M20 x 2.50 | 164.7 kN | 131.8 kN | 494.1 Nm (Aged) | 395.4 Nm (NACE) | 527.0 Nm (Aged) | 421.8 Nm (NACE) |
| M24 x 3.00 | 237.3 kN | 189.8 kN | 854.3 Nm (Aged) | 683.3 Nm (NACE) | 911.2 Nm (Aged) | 728.8 Nm (NACE) |
Critical Galling Warning: Never assemble bare Inconel 718 nuts onto bare Inconel 718 bolts or studs dry. High contact stress across the passive oxide layer causes instantaneous cold-welding (thread seizure). Specifying AMS 2410 silver plating on the internal nut threads or applying nuclear/aerospace-grade anti-seize paste is mandatory for repeatable preload control.
■ Inconel 718 Nut Mechanical Properties & Technical Specifications (UNS N07718)
| MATERIAL & MATRIX | Inconel 718 (UNS N07718 / W.Nr. 2.4668 / EN NiCr19Fe19Nb5Mo3 / BS HR8 / NC19FeNb). A gamma double-prime (γ'', Ni3Nb) precipitation-hardenable nickel-chromium-iron superalloy (Density: 8.19 g/cm³ / 0.296 lb/in³) engineered to sustain massive proof loads without thread dilation or creep relaxation. |
|---|---|
| CHEMICAL COMPOSITION |
|
| MECHANICAL & PROOF LOAD INTEGRITY |
|
| GOVERNING NUT SPECIFICATIONS |
|
| NUT STYLES & CONFIGURATIONS | Heavy Hex Nuts (ASME B18.2.2 ASTM F467 Gr. N07718), Finished Hex Nuts (DIN 934 / ISO 4032 / ISO 4033), Thin Hex Jam Nuts (DIN 439 / ISO 4035), All-Metal Prevailing Torque Lock Nuts (DIN 980 / ISO 7042) for temperatures above 200°C where nylon inserts melt, Nylon Insert Nyloc Nuts (DIN 985 / ISO 7040), Slotted & Castle Nuts (DIN 935 / DIN 979), Serrated & Non-Serrated Flange Nuts (DIN 6923 / EN 1661), 12-Point Bi-Hex Aerospace Nuts, Dome / Acorn Cap Nuts (DIN 1587), Square Nuts (DIN 557 / DIN 562), and Round Coupling Nuts (DIN 6334). |
| INTERNAL THREADING & TRIBOLOGY | Precision CNC single-point threaded or cold-form tapped to Unified Coarse (UNC), Unified Fine (UNF), Constant 8-Pitch (8-UN), Metric Coarse/Fine (ISO 6H), and Aerospace UNJ Class 3B (AS8879 / MIL-S-8879) profiles. Routine surface treatments include AMS 2410 Electroplated Silver (effective solid-film lubricant up to 650°C / 1200°F), PTFE / Xylan® 1070/1424 fluoropolymer coatings, and dry-film molybdenum disulfide (MoS2). |
| ENVIRONMENTAL & THERMAL SERVICE | Maintains full mechanical ductility and impact resistance down to cryogenic liquid hydrogen/oxygen temperatures (-423°F / -253°C) and resists oxidation and creep relaxation up to 1300°F (704°C). Exceptional resistance to marine seawater pitting, crevice corrosion, nitric/phosphoric acids, and chloride stress-corrosion cracking (SCC). |
| MATCHING HARDWARE & CERTIFICATIONS | Delivered with 100% PMI verification, hardness test reports, and EN 10204 3.1 / 3.2 MTC. Pair with our Inconel 718 Bolts, ASME B16.5 Inconel 718 Stud Bolts, Inconel 718 Washers, or download the Inconel 718 Technical Datasheet (PDF). |
Quick Links
Contact
- Address: Plot No - 14, Dewan And Shah Udyog Nagar, Golani Naka, Vasai East, Vasai-Virar, Waliv, Maharashtra 401208
- Email:
sales@anankafasteners.com
yogita@anankafasteners.com
globalsales@anankafasteners.com
Our Leading Fasteners
Copyright © 2026 Ananka Group. All rights reserved.