ASTM A490 Heavy Hex Bolt High Strength

• 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 prestigious ASTM A490 specification detailed the manufacturing of quenched and tempered alloy steel. These are robust heavy hex structural bolts, crafted for the utmost reliability. Ranging from 1/2″ to 1-1/2″ diameters, these bolts boast a remarkable minimum tensile strength of 150 ksi. Designed for structural connections, they feature shorter thread lengths, tailored specifically for these applications, unlike standard hex bolts. Please visit our website's Structural Bolts section for comprehensive details on thread lengths and other dimensions. A490 bolts, crafted from superior alloy steel, offer higher strength compared to the A325 heavy hex structural bolts, made from medium carbon steel. These specifications apply exclusively to heavy hex structural bolts. For bolts with varied thread lengths yet similar mechanical properties, see Specification A354 grade BD. Notably, ASTM A490 bolts must not be coated via hot-dip galvanizing, mechanical deposition, or electroplating with zinc due to the risk of hydrogen embrittlement. However, ASTM allows coating these bolts with Zinc/Aluminum Corrosion Protective Coatings according to ASTM F1136 Grade 3, known commercially as Geomet. Furthermore, the A490 specification mandates additional Magnetic Particle Inspection for detecting longitudinal discontinuities and transverse cracks.
Ningbo Beilun Milfast Metalworks Co., Ltd. stands as a beacon of expertise in the fasteners industry in Ningbo, specializing in Threaded Rods and Studs, Bolts, Nuts, Washers, and a variety of stamping metal parts. Our unwavering commitment to quality and exceptional service has earned us the trust and commendation of our valued customers.

Milfast Metalworks offers an extensive range of products, with a variety 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 myriad of other exquisite metal parts.
Ningbo Beilun Milfast Metalworks Co., Ltd. is dedicated to producing high-caliber fasteners with standard 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, 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
Rooted in a robust standard system, Ningbo Beilun Milfast Metalworks Co., Ltd exemplifies excellence by meticulously managing every phase of production. From the careful selection of raw materials to the intricately controlled production processes, we steadfastly uphold the highest standards of product quality. This rigorous approach ensures that each product resonates with superior quality, consistently winning the trust and satisfaction of our valued customers.

At the heart of Milfast Metalworks lies a diverse range of premium products including the esteemed ASTM A193-B7 Threaded Rods and A194 Gr. 2H Heavy Hex Nuts, ASTM A325 Structural Bolts, and ASTM F436M Hardened Flat Washers. These products are globally distributed, reaching markets across America, Europe, the Middle East, Africa, and beyond.