Bolts

Bolts are fastening elements consisting of a cylindrical rod with an external thread and a head of various shapes, designed for connecting and securing different components of pipelines, equipment, and structures. They create a strong connection capable of withstanding significant mechanical loads and vibrations. Bolted joints allow for easy maintenance, assembly, and disassembly of various systems without damaging the connected elements.

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Name	Diameter of the circumcircle, e (mm)	Fastener type	Head height, k (mm)	Length, l (mm)	Rounding radius, r (mm)	Size	Standard	Steel grade	Thread pitch, p (mm)	Weight 1 pc (kg)
Stainless bolt M42x90 DIN 933	71.3	Hexagonal bolt	26	90	1.2	M42	DIN 933	X6CrNiMoTi17-12-2 / 1.4571 / 316Ti / A5	4.5	1.57
Stainless bolt M42x90 DIN 933	71.3	Hexagonal bolt	26	90	1.2	M42	DIN 933	X1NiCrMoCuN25-20-7 / 1.4529	4.5	1.57
Stainless bolt M42x90 DIN 933	71.3	Hexagonal bolt	26	90	1.2	M42	DIN 933	X2CrNiMo17-12-2 / 1.4404 / 316L	4.5	1.57
Stainless bolt M42x90 DIN 933	71.3	Hexagonal bolt	26	90	1.2	M42	DIN 933	X5CrNiMo17-12-2 / 1.4401 / 316 / A4	4.5	1.57
Stainless bolt M42x90 DIN 933	71.3	Hexagonal bolt	26	90	1.2	M42	DIN 933	X5CrNi18-10 / 1.4301 / 304 / A2	4.5	1.57
Set bolt with dog point M8x35 DIN 561	11.05	Bolt with reduced head and dog point	6	35	0.4	M8	DIN 561	22H, zinc plated	1.25	0.01
Set bolt with dog point M8x35 DIN 561	11.05	Bolt with reduced head and dog point	6	35	0.4	M8	DIN 561	22H	1.25	0.01
Set bolt with dog point M8x35 DIN 561	11.05	Bolt with reduced head and dog point	6	35	0.4	M8	DIN 561	14H, zinc plated	1.25	0.01
Set bolt with dog point M8x35 DIN 561	11.05	Bolt with reduced head and dog point	6	35	0.4	M8	DIN 561	14H	1.25	0.01
High-strength structural bolt 1 1/8"-7UNC-2A x 3 1/2" SC ASME B18.2.6	0	High-strength hexagonal bolt	0	88.9	0	—	ASME B18.2.6	F3125 Gr. A490 Type 3	0	0.92

Looking for reliable bolts for pipeline systems? The SalesSolution catalog offers fastening bolts of various sizes manufactured according to ASME, DIN, EN, EN ISO, and ISO standards. Order with delivery to the destination point. ASME bolts are threaded fastening elements used to connect pipes, flanges, equipment, and support structures in industrial systems. They are widely used in pipelines and process lines of the oil and gas, petrochemical, chemical, and power generation industries, where reliability is essential under high pressure, temperature fluctuations, and aggressive environments. Stainless steel and corrosion-resistant alloys such as Incoloy, Hastelloy, and Alloy grades are used in production, ensuring long service life. The products comply with international standards, guaranteeing reliable joints even in demanding industrial conditions.

ASME bolts for pipe connections

Bolts for ASME pipeline systems are manufactured in accordance with ASME B18.2.1 and ASME B16.5, ensuring dimensional accuracy, correct thread pitch, and full compatibility with flanges and pipeline fittings. They are used in assemblies where high requirements for tightness and mechanical strength are critical.

The following materials are typically used:

- alloy steels (ASTM A193 Grade B7, B16),

- stainless alloys (ASTM A320, ASTM A182 F304/F316),

- high-strength corrosion-resistant materials designed for aggressive operating environments.

These bolts maintain structural integrity and joint stability even under prolonged loads, vibration, and cyclic temperature fluctuations.

Bolts for pipelines: bulk supply

Supply of ASME bolts is carried out according to technical specifications and is focused on large-scale industrial projects. Each batch is assembled according to project documentation and undergoes strict quality control. The products are certified according to ASME and ASTM standards, confirming their suitability for use in oil and gas, chemical, and power generation industries.

Thanks to compliance with international standards, ASME bolts can be used in any pipeline systems—from high-pressure main pipelines to technological installations where absolute connection reliability is required.

FAQ

1. What is the difference between a flange bolt and a standard hex bolt?

A flange bolt has an enlarged bearing surface under the head, which distributes the load more evenly and reduces the risk of damage to the connected surfaces.

2. How do you select a bolt by thread type?

It is important to consider the thread pitch, thread profile, and compatibility with the nut or threaded hole, as well as whether the system uses metric or imperial threads.

3. Should washers be used when installing bolts?

Yes, in most cases. Washers help distribute the load evenly and protect the surface from damage.

Comments

1. Does the bolt head type affect the strength of the connection?

The head type does not affect the strength of the bolt shank but influences the installation method and load distribution on the connected surface.

2. Can bolts and nuts of different standards be combined?

No. Different standards may have variations in thread specifications, which can weaken the joint and lead to failure.

3. Where are eye bolts used?

Eye bolts are used for fastening, lifting, and moving equipment. They are designed to withstand vertical and angular loads and are convenient for temporary installation tasks.

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