High-Strength ASTM A490 Heavy Hex Bolt for Construction

• Customization: Available
• Material: Carbon Steel
• Type: Hexagon Head
• Model NO.: HEX BOLTS
• Head Style: Hexagonal
• Standard: ANSI
• Grade: B7
• Transport Package: Pallets
• Specification: 1100*800
• Trademark: M
• Origin: Ningbo
• HS Code: 7318151001

Product Description

Before its withdrawal in 2016, the distinguished ASTM A490 specification was the benchmark for quenched and tempered alloy steel, heavy hex structural bolts, engineered for excellence and reliability. Ranging from 1/2″ to 1-1/2″ diameter and boasting a minimum 150 ksi tensile strength, these bolts are meticulously crafted for structural connections, offering shorter thread lengths than standard hex bolts to ensure optimal fit and performance. Visit our Structural Bolts page for precise thread lengths and dimensions. The A490 bolts, crafted from high-strength alloy steel, are akin in application and dimensions to the A325 heavy hex structural bolts, yet they surpass in strength. The A490 specification is exclusively tailored for heavy hex structural bolts. For bolts that require unique thread lengths yet share similar mechanical properties, refer to Specification A354 grade BD, which extends versatility in application.ASTM A490 bolts are not suitable for coating by hot-dip galvanizing, mechanical deposition, or electroplating with zinc due to the potential risk of hydrogen embrittlement. However, ASTM endorses the use of Zinc/Aluminum Corrosion Protective Coatings, known commercially as Geomet, per ASTM F1136 Grade 3, ensuring the integrity and longevity of these bolts. Furthermore, stringent Magnetic Particle Inspection for Longitudinal Discontinuities and Transverse Cracks is mandated by the A490 specification, upholding the highest quality standards.
The esteemed Ningbo Beilun Milfast Metalworks Co., Ltd., a beacon in the fasteners industry based in Ningbo, excels in manufacturing Threaded Rods, Studs, Bolts, ensuring precision and durability. Nuts, crafted with meticulous attention to detail. Washers, complemented by top-tier Stamping metal parts. Our unwavering commitment to quality and exceptional service has earned us the trust and admiration of our valued clientele.

The Milfast Metalworks product line boasts a diverse array of specifications and types, tailored to meet the varied needs of our customers:
THREADED RODS, STUD BOLTS, HEAVY HEX BOLTS, STRUCTURAL BOLTS, HEX BOLTS, FLANGE BOLTS, TRACK BOLTS, CARRIAGE BOLTS, HEAVY HEX NUTS, STRUCTURAL NUTS, HEX NUTS, FLANGE NUTS, CASTLE NUTS, SQUARE NUTS, FLAT WASHERS, SPRING WASHERS, SPECIAL FASTENERS AND OTHER VARIOUS METAL PARTS, each crafted with precision and expertise.
Ningbo Beilun Milfast Metalworks Co., Ltd. is synonymous with the production of superior quality fasteners including standard Threaded Rods, bolts, nuts, stud bolts, and washers, encompassing a range of standards such as,
ASTM A325/A325M/A490/A490M, Type 1 Structural Bolts, A193/A193M Gr.B7/B7M, Heavy Hex Bolts, ASTM A307 Hex Bolt, DIN912 Socket Head Cap Screws, DIN6914 Structural Bolts, EN14399-3/EN14399-4 Heavy Hex Bolts, DIN931/933 Hex Bolts, DIN960/961 Hex Bolts, ISO4014/4017 Hex Bolts, DIN6921 Flange Bolts, each offering unparalleled strength and reliability.
ASTM A194/A194M Gr. 2H/2HM, 7/7M Heavy Hex Nuts, A563/A563M Gr. C/DH/10S Heavy Hex Nuts, DIN6915 Structural Nuts, EN14399-3/EN14399-4 Heavy Hex Nuts, DIN934 Hex Nuts, ISO4032 Hex Nuts, DIN6923 Flange Nuts, crafted for precision and performance.
ASTM A193/A193M Gr. B7/B7M, B16, B8/B8M, ASTM A320 Gr.L7/L7M Threaded Rod/Stud Bolts, DIN975 Threaded Rods, designed to meet your demanding specifications with robustness.
ASTM F436 Hardened Flat Washer, SAE/USS Flat Washer, ISO7089 Round Flat Washer, DIN125 Flat Washers, DIN6916 Structural Washer, EN14399-5/EN14399-6 Flat Washer, DIN127 Spring Washer, F959, DTI Washer, each washer engineered to provide optimal support and reliability.
With a commitment to excellence rooted in stringent industry standards, Ningbo Beilun MILFAST METALWORKS Co., Ltd. meticulously oversees each stage of production. From selecting the finest raw materials to executing the production process with precision, every step is managed to ensure superior product quality. This rigorous approach has secured immense satisfaction among our valued customers, who consistently appreciate our dedication to delivering outstanding results.

The core offerings of Milfast Metalworks ASTM A193-B7 Threaded Rods, A194 Gr. 2H Our Heavy Hex Nuts, ASTM A325 Structural Bolts, and ASTM F436M Hardened Flat Washers are renowned for their reliability and are distributed globally. We proudly serve a diverse range of regions, including the United States, Europe, the Middle East, Africa, and beyond.