ASTM A490 Heavy Hex Bolt Black Finish

• 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 ASTM A490 specification was a prestigious standard covering quenched and tempered alloy steel. It was designed specifically for heavy hex structural bolts. These exceptional bolts ranged from 1/2″ to 1-1/2″ in diameter, boasting a robust minimum tensile strength of 150 ksi. Crafted for structural connections, they feature shorter thread lengths compared to standard hex bolts, ensuring optimal performance and reliability. For comprehensive thread lengths and dimension details, visit our Structural Bolts section for precise specifications. A490 bolts, made from alloy steel, offer superior strength, parallel to A325 heavy hex structural bolts crafted from medium carbon steel. Importantly, the A490 specification is exclusive to heavy hex structural bolts. For bolts requiring different thread lengths while maintaining similar mechanical prowess, refer to Specification A354 grade BD for refined alternatives.Note that ASTM A490 bolts should not be coated using hot-dip galvanizing, mechanical deposition, or electroplating with zinc, due to the risk of hydrogen embrittlement. Instead, ASTM endorses the application of Zinc/Aluminum Corrosion Protective Coatings per ASTM F1136 Grade 3, known commercially as Geomet. Additional rigorous testing, including Magnetic Particle Inspection for Longitudinal Discontinuities and Transverse Cracks, is a requisite under the A490 specification.
Ningbo Beilun Milfast Metalworks Co., Ltd. stands as a beacon of excellence in Ningbo, specializing in high-grade fasteners including Threaded Rods, Studs, Bolts, Nuts, Washers, and expertly crafted Stamping metal parts. Our unwavering commitment to quality and exceptional service has earned us the trust and loyalty of our esteemed clients.

At Milfast Metalworks, our diverse product offerings encompass a wide range of specifications and types:
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 a wealth of other metal components.
Ningbo Beilun Milfast Metalworks Co., Ltd. is renowned for producing superior standard fasteners such as Threaded Rods, bolts, nuts, stud bolts, and washers, including:
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, and DIN6921 Flange Bolts.
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.
ASTM A193/A193M Gr. B7/B7M, B16, B8/B8M, ASTM A320 Gr.L7/L7M Threaded Rod/Stud Bolts, and DIN975 Threaded Rods.
ASTM F436 Hardened Flat Washers, SAE/USS Flat Washers, ISO7089 Round Flat Washers, DIN125 Flat Washers, DIN6916 Structural Washers, EN14399-5/EN14399-6 Flat Washers, DIN127 Spring Washers, and F959 DTI Washers, meeting the highest standards of quality and durability.
Rooted in an impeccable standard system, Ningbo Beilun Milfast Metalworks Co., Ltd. meticulously regulates each production phase to ensure top-tier product excellence. From the finest raw materials to a rigorously refined production process, every step is governed by stringent quality control, guaranteeing the superior caliber of our products. This dedication to excellence has earned us resounding customer satisfaction across the board.

The core offerings of Milfast Metalworks include distinguished products such as: ASTM A193-B7 - renowned for its exceptional strength and durability. Threaded Rods, A194 Gr. 2H - crafted for precision and reliability. Our Heavy Hex Nuts, ASTM A325 Structural Bolts, and ASTM F436M Hardened Flat Washers have a profound international presence, spanning continents and thriving in markets across America, Europe, the Middle East, Africa, and beyond.