ASME B18.2.3.5M Hex Head Bolts
Product: ASME B18.2.3.5M Hex Head Bolts
Property Class:4.6,4.8,5.6,5.8,8.8,10.9,12.9,
A2-70, A4-70,A4-80
Finish:Zinc Plating（Yellow Zinc, Zinc Blue, Rinse Color), Black, Phosphate & Oil, Zinc Phosphate, Hot-dip Galvanized(HDG),Dacromet, Geomet
Material:Steel,Stainless
Export country: USA, Japan, Australia, Europe and so on
Support customer customization
Looking for ASME B18.2.3.5M Hex Head Bolts that deliver superior performance and meet the highest international standards? Our high-strength hex head bolts are engineered to exact specifications, ensuring reliability, durability, and compatibility across global industrial applications.
From automotive and aerospace to heavy machinery and structural steelwork, the ASME B18.2.3.5M Hex Head Bolts are trusted worldwide for precision fastening, corrosion resistance, and mechanical strength.
✅ What Are ASME B18.2.3.5M Hex Head Bolts?
ASME B18.2.3.5M is a globally recognized standard that specifies the dimensions and tolerances for metric hex bolts with hexagonal heads. These bolts are known for their versatile strength and structural integrity, widely used in critical load-bearing applications.
Our ASME B18.2.3.5M Hex Head Bolts are manufactured under strict quality controls, ensuring they meet or exceed ISO, DIN, and ASTM equivalents.
? Key Features of ASME B18.2.3.5M Hex Head Bolts
? Precision Dimensions
Manufactured in compliance with ASME B18.2.3.5M standard for guaranteed fit and performance.? High Tensile Strength
Made from Grade 8.8, 10.9, or 12.9 carbon steel, or stainless steel 304/316, depending on your application.? Corrosion Resistance
Zinc-plated, hot-dip galvanized, or stainless finishes provide exceptional anti-rust properties.? Versatile Applications
Ideal for bridges, buildings, energy plants, automotive, marine, railways, heavy equipment, and more.✅ Global Compatibility
Metric sizing, full thread and partial thread options, M6–M100 diameters, lengths up to 500mm.
? Technical Specifications
| Specification | Details |
|---|---|
| Standard | ASME B18.2.3.5M |
| Sizes | M6 to M100 (custom sizes available) |
| Grades Available | 4.6 / 8.8 / 10.9 / 12.9 / A2 / A4 |
| Threads | Metric coarse and fine threads |
| Materials | Carbon steel, alloy steel, stainless steel |
| Surface Treatment | Black oxide, zinc plated, hot-dip galvanized, plain |
| Tolerance | As per ASME B18.2.3.5M, Class 6g/6H |
| Packaging | 25kg cartons, pallets, or OEM boxes |
? Recommended Applications
The ASME B18.2.3.5M Hex Head Bolts are essential in environments that demand secure, long-term fastening under dynamic or static loads:
Structural steel fabrication
Machinery and mechanical systems
Wind and solar energy infrastructure
Automotive and rail transport
Shipbuilding and offshore platforms
Pressure vessels and heat exchangers
? Why Engineers & Buyers Choose Us
“We’ve sourced thousands of ASME B18.2.3.5M Hex Head Bolts for our industrial projects. The dimensional accuracy and strength are unmatched.”
– Carlos H., Construction Project Manager
“We appreciate the fast turnaround, quality certification, and bulk pricing. Their ASME B18.2.3.5M Hex Head Bolts are our standard now.”
– Amit R., Procurement Officer
? Fast Global Delivery & OEM Support
Worldwide Shipping – Fast delivery to the US, EU, Middle East, Australia, Southeast Asia
Bulk Orders Welcome – Competitive factory pricing with flexible MOQ
OEM & Custom Marking – Your logo, part number, or standard markings on bolt heads
Full Certification – MTC, SGS, CE, ISO 9001, RoHS upon request
? Industries We Serve
Construction & Civil Engineering
Oil & Gas
Aerospace & Defense
Automotive & Transport
Marine Engineering
Energy & Utilities
? Secure Your Fastening System – Get ASME B18.2.3.5M Hex Head Bolts Today!
When strength, compliance, and performance matter, trust ASME B18.2.3.5M Hex Head Bolts to deliver. Backed by years of manufacturing excellence and global supply experience, we’re your reliable partner in industrial fasteners.
? Contact us now to request a quote, technical datasheet, or bulk pricing details. Let’s build strength together — bolt by bolt.
Product drawing
Product Specification
Size | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M20 | M24 | M30 | M36 | M42 | M48 | M56 | M64 | M72 | M80 | M90 | M100 | |
P | 0.8 | 1.0 | 1.25 | 1.5 | 1.75 | 2.0 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 | 4.5 | 5.0 | 5.5 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | |
ds | max | 5.48 | 6.19 | 8.58 | 10.58 | 12.7 | 14.7 | 16.7 | 20.84 | 24.84 | 30.84 | 37.0 | 43.0 | 49.0 | 57.2 | 65.52 | 73.84 | 82.16 | 92.48 | 102.8 |
min | 4.52 | 5.52 | 7.42 | 9.42 | 11.3 | 13.3 | 15.3 | 19.16 | 23.16 | 29.16 | 35.0 | 41.0 | 47.0 | 54.8 | 62.8 | 70.8 | 78.8 | 88.6 | 98.6 | |
s | max | 8.0 | 10.0 | 13.0 | 16.0 | 18.0 | 21.0 | 24.0 | 30.0 | 36.0 | 46.0 | 55.0 | 65.0 | 75.0 | 85.0 | 95.0 | 105.0 | 115.0 | 130.0 | 145.0 |
min | 7.64 | 9.64 | 12.57 | 15.57 | 17.57 | 20.16 | 23.16 | 29.16 | 35.0 | 45.0 | 53.8 | 62.9 | 72.6 | 82.2 | 91.8 | 101.4 | 111.0 | 125.5 | 140.0 | |
e | max | 9.24 | 11.55 | 15.01 | 18.48 | 20.78 | 24.25 | 27.71 | 36.64 | 41.57 | 53.12 | 63.51 | 75.06 | 86.6 | 98.15 | 109.7 | 121.24 | 132.79 | 150.11 | 167.43 |
min | 8.63 | 10.89 | 14.2 | 17.59 | 19.85 | 22.78 | 26.17 | 32.95 | 39.55 | 50.55 | 60.79 | 71.71 | 82.76 | 93.71 | 104.65 | 115.6 | 126.54 | 143.07 | 159.6 | |
k | max | 3.88 | 4.38 | 5.68 | 6.85 | 7.95 | 9.25 | 10.75 | 13.4 | 15.9 | 19.75 | 23.55 | 27.05 | 31.07 | 36.2 | 41.32 | 46.45 | 51.58 | 57.74 | 63.9 |
min | 3.35 | 3.85 | 5.1 | 6.17 | 7.24 | 8.51 | 9.68 | 12.12 | 14.56 | 17.92 | 21.62 | 25.03 | 28.93 | 33.8 | 38.68 | 43.55 | 48.42 | 54.26 | 60.1 | |
da max | 5.7 | 6.8 | 9.2 | 11.2 | 13.7 | 15.7 | 17.7 | 22.4 | 26.4 | 33.4 | 39.4 | 45.4 | 52.0 | 62.0 | 70.0 | 78.0 | 86.0 | 96.0 | 107.0 | |
r min | 0.2 | 0.3 | 0.4 | 0.4 | 0.6 | 0.6 | 0.6 | 0.8 | 0.8 | 1.0 | 1.0 | 1.2 | 1.5 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.5 | |
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