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ASTM A193 B7 Fully Threaded Studs

ASTM A193 B7 fully threaded studs are high-strength alloy steel fasteners designed for use in high-temperature and high-pressure environments, such as flange connections and piping systems. These studs offer excellent tensile strength and corrosion resistance, making them ideal for applications in industries like oil, chemical processing, boilers, and pressure vessels. The fully threaded design allows for flexible adjustment of fastening length.

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Key Features

High Strength: Made from alloy steel, providing exceptional tensile strength and durability, meeting ASTM A193 B7 standards.

Fully Threaded Design: Offers greater flexibility for fastening in applications requiring adjustable lengths.

Resistant to High Temperatures and Pressure: Suitable for high-temperature and high-pressure environments, widely used in the chemical and oil industries.

Optional Surface Treatments: Available in zinc plating, black oxide, or untreated for enhanced corrosion resistance.

Specifications Table

Parameter	Description
Standard	ASTM A193 B7
Material	Alloy Steel
Diameter Range	1/4" - 4"
Length Range	50mm - 500mm
Surface Treatment	Zinc Plated, Black Oxide, Untreated
Applications	Oil, Chemical, Boilers, Pressure Vessels

Applications
Suitable for petrochemical equipment, pressure vessels, piping flange connections, boilers, and other high-temperature, high-pressure equipment.

Product Standards

d		M4	M5	M6	M8	M10	M12	(M14)	M16	(M18)
P	Coarse Thread	0.7	0.8	1	1.25	1.5	1.75	2	2	2.5
	Fine Thread 1	/	/	/	1	1	1.5	1.5	1.5	1.5
	Fine Thread 2	/	/	/	/	1.25	1.25	/	/	/
Weight per Thousand (Steel) ≈ kg		80	120	180	320	500	730	970	1330	1650

d		M20	(M22)	M24	(M27)	M30	(M33)	M36	(M39)	M42
P	Coarse Thread	2.5	2.5	3	3	3.5	3.5	4	4	4.5
	Fine Thread 1	1.5	1.5	2	2	2	2	3	3	3
	Fine Thread 2	/	/	/	/	/	/	/	/	/
Weight per Thousand (Steel) ≈ kg		2090	2540	3000	3850	4750	5900	6900	8280	9400

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.