High-Strength ASTM A490 Heavy Hex Bolt for Industrial Use Black Finish

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

Product Description

The ASTM A490 specification, which was in place until 2016, outlined the standards for quenched and tempered alloy steel products, emphasizing unmatched durability and strength. This specification remains a benchmark in the industry despite its withdrawal. Notable for their robustness in construction projects, heavy hex structural bolts are indispensable components for ensuring secure connections in a variety of structures. Ranging from 1/2″ to 1-1/2″ in diameter and boasting a minimum tensile strength of 150 ksi, these bolts are crafted for structural connections, offering shorter thread lengths compared to standard hex bolts to enhance their application in diverse structures. Our website's Structural Bolts section provides comprehensive details on thread lengths and specifications. A490 bolts are akin to A325 heavy hex structural bolts in both function and dimensions but are manufactured using alloy steel, offering superior strength over medium carbon steel, making them a preferred choice for demanding applications. This specification focuses exclusively on heavy hex structural bolts. For variations with different thread lengths yet similar mechanical properties, please consult Specification A354 grade BD for additional options and compatibility.It is crucial to note that ASTM A490 bolts cannot be hot-dip galvanized or coated via mechanical deposition or zinc electroplating due to the risk of hydrogen embrittlement. However, ASTM has sanctioned the coating of A490 bolts with Zinc/Aluminum Corrosion Protective Coatings as per ASTM F1136 Grade 3, known commercially as Geomet. This ensures long-lasting protection. Moreover, extensive testing, including Magnetic Particle Inspection for detecting longitudinal discontinuities and transverse cracks, is mandated, underscoring the rigorous standards of the A490 specification.
Ningbo Beilun Milfast Metalworks Co., Ltd. stands proudly as a premier fasteners manufacturer nestled in Ningbo, specializing in Threaded Rods, Studs, Bolts engineered for precision and reliability, Nuts designed to complement and secure, Washers, and expertly crafted Stamping metal parts. Our unwavering commitment to top-tier quality and exemplary service has earned us unwavering customer trust and satisfaction.

The diverse range of Milfast Metalworks products includes an array of meticulously engineered 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 an assortment of other precision metal parts, each crafted to perfection.
Ningbo Beilun Milfast Metalworks Co., Ltd produces an exceptional range of high-quality fasteners, featuring standard Threaded Rods, bolts, nuts, stud bolts, and washers, all adhering to rigorous industry standards,
such as ASTM A325/A325M/A490/A490M, Type 1 Structural Bolts, A193/A193M Gr.B7/B7M, epitomizing strength and performance. Our offerings include 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 engineered to meet the demands of modern construction and engineering.
For heavy hex nuts, choose from ASTM A194/A194M Gr. 2H/2HM, 7/7M, A563/A563M Gr. C/DH/10S, DIN6915 Structural Nuts, EN14399-3/EN14399-4, DIN934 Hex Nuts, ISO4032 Hex Nuts, DIN6923 Flange Nuts, each crafted for durability and reliability.
Explore our range of Threaded Rod/Stud Bolts, including ASTM A193/A193M Gr. B7/B7M, B16, B8/B8M, ASTM A320 Gr.L7/L7M, and the versatile DIN975 Threaded Rods, engineered to perfection for unmatched performance.
Our washers include 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, designed for precision and reliability in every application. DTI Washers, assuring the highest standards of quality and performance, tailored for excellence in every fastening solution.
Rooted in a robust standard system, Ningbo Beilun MILFAST METALWORKS Co., Ltd meticulously oversees every phase of production to guarantee the factory's capability to deliver superior quality products. From the selection of raw materials to the precision-driven production processes, every step is managed with stringent oversight to ensure the pinnacle of product excellence. This comprehensive quality assurance strategy has consistently garnered exceptional satisfaction from our clients, a testament to our unwavering commitment to quality.

The core offerings of Milfast Metalworks include a diverse range of high-performance products. Our product portfolio features the distinguished ASTM A193-B7, renowned for its superior durability and reliability. We also specialize in premium Threaded Rods and the robust A194 Gr. 2H, each crafted with precision for optimal performance. Our extensive product range further includes Heavy Hex Nuts, the formidable ASTM A325 Structural Bolts, and ASTM F436M Hardened Flat Washers. These products are not only highly sought after but also distributed extensively across the globe, reaching markets from America, Europe, and the Middle East to Africa, establishing a significant presence worldwide.