RAW MATERIAL: 1035 1045 40CR
FINISH: BLACK/ZP/HDG
STANDARD: IS04014/4017(DIN931/933)
ASME B18.2.1
SIZE: M4-M52
114”2
GRADE: IS0 898-1 (4.8/6,8/8.8/10.9)
SAE J429 (GR.2/5/8)
Our Hex Head Bolts are manufactured for industrial, construction, machinery, automotive, equipment, and general fastening applications where reliable clamping performance, standardized dimensions, and consistent quality are essential. Designed with a six-sided head for easy installation with standard wrenches and sockets, these hexagon head bolts provide a practical fastening solution for OEM manufacturers, engineering contractors, distributors, wholesalers, and industrial buyers. With a broad selection of materials, strength grades, sizes, standards, and surface finishes, we can support both routine fastening requirements and more demanding mechanical applications.
Our Hex Head Bolts are available in 1035 carbon steel, 1045 carbon steel, and 40Cr alloy steel, allowing buyers to select the appropriate material according to application requirements and target performance. For metric fasteners, available property classes include 4.8, 6.8, 8.8, and 10.9 according to ISO 898-1, covering applications from general-purpose assembly to high-strength mechanical fastening. For inch-series bolts, we offer SAE J429 Grade 2, Grade 5, and Grade 8, providing suitable options for North American and other imperial-standard applications. This range enables customers to source both standard-duty and high-strength metric and inch hex bolts from one product category.
To meet different international fastening systems, our products are manufactured according to widely recognized standards, including ISO 4014 and ISO 4017 (DIN 931/DIN 933) for metric Hex Head Bolts and ASME B18.2.1 for inch-series products. ISO 4014 and ISO 4017 cover partially threaded and fully threaded hexagon head bolt configurations respectively, giving buyers flexibility in selecting the appropriate thread design for different assemblies. Standardized dimensions help ensure compatibility with commonly used nuts, washers, tools, and existing fastening systems.
ISO 4014 (DIN 931) — partially threaded
ISO 4017 (DIN 933) — fully threaded
ASME B18.2.1
Different operating environments require different levels of surface protection. We offer Black, Zinc Plated (ZP), and Hot-Dip Galvanized (HDG) finishes to meet a variety of application and corrosion-resistance requirements.
Commonly selected for general industrial applications.
Enhanced surface protection for many indoor and light-duty environments.
A more robust galvanized coating for outdoor construction, structural, and moisture-exposed applications.
Our standard size range covers M4 to M52 in metric specifications and approximately 1/4" to 2" in inch sizes. This broad size coverage allows customers to source small standard fasteners as well as larger bolts for machinery, equipment, construction, and heavy-duty assemblies. The combination of metric and inch sizes also makes the product range suitable for international distributors and manufacturers serving different markets.
Metric: M4–M52
Inch: ~1/4"–2"
With multiple steel materials, mechanical grades, international standards, surface finishes, and size options, our Hex Head Bolts are designed to simplify fastener sourcing for OEM manufacturers, machinery companies, construction suppliers, hardware distributors, and wholesalers.
Whether you require standard hex bolts, high-strength 8.8 or 10.9 metric bolts, SAE J429 Grade 5 or Grade 8 bolts, zinc-plated fasteners, or hot-dip galvanized hex bolts, we provide a flexible specification range that can be matched to your application, assembly requirements, and purchasing needs — a dependable solution for long-term industrial and commercial fastening requirements.
