ASTM A490 Heavy Hex Bolt Heavy Duty Hex Bolt Black

• 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 retirement in 2016, the prestigious ASTM A490 specification defined the standards for quenched and tempered alloy steel, heavy hexagonal structural bolts designed for robust applications. These bolts, available in diameters ranging from 1/2″ to 1-1/2″, boast a minimum tensile strength of 150 ksi. Ideal for structural connections, they feature shorter thread lengths compared to standard hex bolts. For comprehensive details on thread lengths and related dimensions, visit the Structural Bolts section of our website. A490 bolts share application and dimensional characteristics with A325 heavy hex structural bolts, yet their alloy steel composition offers enhanced strength over medium carbon steel alternatives. It is crucial to note that the A490 specification is exclusive to heavy hex structural bolts. For bolts requiring alternate thread lengths but maintaining similar mechanical properties, please refer to Specification A354 grade BD. It is important to highlight that ASTM A490 bolts must not be coated with hot-dip galvanizing, mechanical deposition, or zinc electroplating due to hydrogen embrittlement concerns. However, ASTM endorses coating A490 bolts with Zinc/Aluminum Corrosion Protective Coatings under ASTM F1136 Grade 3, also known in the market as Geomet. Additionally, A490 bolts necessitate Magnetic Particle Inspection to assess Longitudinal Discontinuities and Transverse Cracks, ensuring compliance with the A490 specification.
At Ningbo Beilun Milfast Metalworks Co., Ltd., we pride ourselves as a leading fastener company in Ningbo, excelling in manufacturing Threaded Rods, Studs, Bolts, Nuts, Washers, and expertly crafted Stamping metal parts. Our commitment to unparalleled product quality and exceptional customer service has earned us the trust and loyalty of our global clientele.

Milfast Metalworks is proud to offer an extensive range of products, each tailored to meet diverse 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 OTHER VARIOUS METAL PARTS.
Ningbo Beilun Milfast Metalworks Co.,Ltd specializes in producing high-quality fasteners, including standard Threaded Rods, bolts, nuts, stud bolts, and washers, featuring the following standards:
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
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, DIN975 Threaded Rods
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
In adherence to the rigorous standard system, Ningbo Beilun Milfast Metalworks Co., Ltd meticulously oversees every operational link to guarantee the factory's capability to manufacture products of the highest quality. From the initial raw materials to the intricate production processes, each phase is managed with precision to uphold exceptional product standards. This stringent attention to quality has earned us the unparalleled satisfaction and trust of our esteemed customers.

Milfast Metalworks specializes in an extensive array of premium products including the durable ASTM A193-B7, recognized for its exceptional strength and reliability. Our selection also encompasses high-quality Threaded Rods and A194 Gr. 2H components, crafted for superior performance. Furthermore, we offer Heavy Hex Nuts, robust ASTM A325 Structural Bolts, and ASTM F436M Hardened Flat Washers. These products are not only integral in construction but are also highly sought after globally, spanning regions from America and Europe to the Middle East and Africa, underscoring their universal appeal and robust quality.