Durable ASTM A490 Heavy Hex Bolt for Construction Black/HDG 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

Before its withdrawal in 2016, the distinguished ASTM A490 specification encompassed quenched and tempered alloy steel, renowned for its robustness and resilience. heavy hex structural bolts, engineered to provide unparalleled strength and durability in demanding applications, ranging from 1/2″ to 1-1/2″ diameter, boasting an impressive minimum tensile strength of 150 ksi. These precision-engineered bolts are designed specifically for structural connections, featuring shorter thread lengths than standard hex bolts for optimal performance. For comprehensive details on thread lengths and related dimensions, please refer to our Structural Bolts page. A490 bolts, although similar in application and dimensions to A325 heavy hex structural bolts, are crafted from superior alloy steel, ensuring a higher strength fastener. The A490 specification is exclusively applicable to heavy hex structural bolts. For bolts that require different thread lengths yet exhibit similar mechanical properties, please consult Specification A354 grade BD, which offers exceptional alternatives for specific applications.ASTM A490 bolts must not undergo coating by hot-dip galvanizing, mechanical deposition, or electroplating with zinc due to the risk of hydrogen embrittlement. However, ASTM has approved the coating of A490 bolts with the advanced Zinc/Aluminum Corrosion Protective Coatings as per ASTM F1136 Grade 3, commercially known as Geomet. Additionally, the A490 specification mandates rigorous testing, including Magnetic Particle Inspection for Longitudinal Discontinuities and Transverse Cracks, ensuring impeccable quality and reliability.
Ningbo Beilun Milfast Metalworks Co., Ltd. stands as a beacon of excellence in Ningbo, specializing in the manufacture of high-quality fasteners such as Threaded Rods, Studs, Bolts, meticulously crafted to meet diverse industrial needs, Nuts, designed for precision and reliability, Washers, and Stamping metal parts. Our unwavering commitment to quality and exceptional service has earned us the unwavering trust and satisfaction of our esteemed customers.

Milfast Metalworks offers a wide array of products designed to meet various specifications and requirements:
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 VARIOUS METAL PARTS.
At Ningbo Beilun Milfast Metalworks Co., Ltd., we pride ourselves in producing high-quality fasteners, including standard Threaded Rods, bolts, nuts, stud bolts, and washers as exemplified by our adherence to the following specifications:
ASTM A325/A325M/A490/A490M, ensuring optimal performance and reliability. Type 1 Structural Bolts, A193/A193M Gr.B7/B7M, showcasing superior strength and durability, Heavy Hex Bolts, ASTM A307 Hex Bolts, 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, each crafted with precision engineering.
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, all designed for reliability and strength.
ASTM A193/A193M Gr. B7/B7M, B16, B8/B8M, ASTM A320 Gr.L7/L7M Threaded Rod/Stud Bolts, DIN975 Threaded Rods, tailored to meet the most rigorous standards.
ASTM F436 Hardened Flat Washer, SAE/USS Flat Washer, ISO7089 Round Flat Washer, DIN125 Flat Washers, DIN6916 Structural Washers, EN14399-5/EN14399-6 Flat Washers, DIN127 Spring Washers, and F959, DTI Washers, each engineered to provide exceptional performance and reliability in every application.
Rooted in a robust standard system, Ningbo Beilun MILFAST METALWORKS Co., Ltd. meticulously controls every aspect of production to ensure the manufacture of superior-quality items. From the selection of raw materials to the intricacies of the production process, our stringent management guarantees exceptional product quality. This dedication to excellence has earned us high satisfaction and acclaim from our esteemed customers.

Milfast Metalworks proudly specializes in the production of high-caliber industrial fasteners and components. Our product range includes the renowned ASTM A193-B7 fasteners, known for their strength and reliability. We offer an array of dependable solutions, such as Threaded Rods and the robust A194 Gr. 2H fasteners, tailored to meet diverse industrial needs. Our offerings, including Heavy Hex Nuts, ASTM A325 Structural Bolts, and ASTM F436M Hardened Flat Washers, are utilized globally across regions like America, Europe, the Middle East, Africa, and beyond.