Discover Premium Industrial Bolts

Explore our range of high-quality bolts designed for durability and reliability.

ASME B18.2.1 Standard US Hex Bolts

The ASME B18.2.1 Standard US Hex Bolt is a high-precision fastening component designed to meet the American Society of Mechanical Engineers (ASME) standards. Featuring a hexagonal head design, it facilitates easy tightening and removal with a standard wrench, suitable for a range of industrial, construction, and machinery applications. Typically manufactured from high-strength materials and subjected to rigorous quality control, these bolts ensure stable connections and reliable performance across various environments.

Email us：market@yudemetal.com

Back to list

Message

Send Email

OEM/ODM

Product Photos and Information

Key Features

ASME B18.2.1 Standard: Complies with ASME standards, ensuring consistency and reliability

Hex Head Design: Allows for easy installation and removal with a standard wrench

High Strength: Provides excellent load-bearing capacity suitable for various applications

Precision Manufacturing: Ensures bolt dimensions and performance meet standard requirements

Various Sizes: Available in multiple sizes and lengths to meet different needs

Specifications Table

Parameter	Description
Material	Carbon Steel, Alloy Steel, Stainless Steel
Standard	ASME B18.2.1
Sizes	1/4"-12 to 1"-8 (or customized as per request)
Length	1/2" to 10" (or customized as per request)
Tensile Strength	Depends on material and grade, e.g., Grade 5, Grade 8
Surface Finish	Galvanized, Black Oxide, or Unfinished
Application Environment	Indoor, Outdoor
Applications	Industrial Equipment, Construction, Machinery

Applications

Industrial Equipment,Construction,Machinery,Infrastructure

Product Standards

Bolt Diameter	d	s			e		k
	Body Diameter	Width Across Flats			Width Across Corners		Height
	Max	Basic	Max	Min	Max	Min	Basic	Max	Min
¹⁄₂	0.515	³⁄₄	0.750	0.725	0.866	0.826	¹¹⁄₃₂	0.364	0.302
⁵⁄₈	0.642	¹⁵⁄₁₆	0.938	0.906	1.083	1.033	²⁷⁄₆₄	0.444	0.378
³⁄₄	0.768	1¹⁄₈	1.125	1.088	1.299	1.240	¹⁄₂	0.524	0.455
⁷⁄₈	0.895	1⁵⁄₁₆	1.312	1.269	1.516	1.447	³⁷⁄₆₄	0.604	0.531
1	1.022	1¹⁄₂	1.500	1.450	1.732	1.653	⁴³⁄₆₄	0.700	0.591
1¹⁄₈	1.149	1¹¹⁄₁₆	1.688	1.631	1.949	1.859	³⁄₄	0.780	0.658
1¹⁄₄	1.277	1⁷⁄₈	1.875	1.812	2.165	2.066	²⁷⁄₃₂	0.876	0.749
1³⁄₈	1.404	2¹⁄₁₆	2.062	1.994	2.382	2.273	²⁹⁄₃₂	0.940	0.810
1¹⁄₂	1.531	2¹⁄₄	2.250	2.175	2.598	2.480	1	1.036	0.902
1⁵⁄₈	1.658	2⁷⁄₁₆	2.438	2.356	2.815	2.616	1³⁄₃₂	1.116	0.978
1³⁄₄	1.785	2-5/8	2.625	2.538	3.031	2.893	1⁵⁄₃₂	1.196	1.054
1⁷⁄₈	1.912	2¹³⁄₁₆	2.812	2.719	3.248	3.099	1¹⁄₄	1.276	1.130
2	2.039	3	3.000	2.900	3.464	3.306	1¹¹⁄₃₂	1.388	1.175
2¹⁄₄	2.305	3³⁄₈	3.375	3.262	3.897	3.719	1¹⁄₂	1.548	1.327
2¹⁄₂	2.559	3³⁄₄	3.750	3.625	4.330	4.133	1²¹⁄₃₂	1.708	1.479
Dimensions per ASME B18.2.1

About Us

We are dedicated to becoming a premier global provider of fastening solutions, elevating Chinese manufacturing to the forefront of the world stage, and making "Yude" production synonymous with excellence. To achieve this, we must demonstrate unwavering determination. Additionally, we carry the weight of social responsibility and the expectations of our employees. Looking ahead, we aspire to be recognized as a respected enterprise.