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Brass Copper Set Screw Grub Screws

Metric Size: M1.4 – M52, Inch Size: 0# – 2″

Hexagon Socket(Allen), Torx Star, Square, Slotted Drive Types

Flat Point, Cup Point, Cone Point, Dog Point

Other Drive and Point Type are also available acc. to customer requirement

Various Surface Finishes

Various Material Grades are available

Please feel free to contact us for more details

A193 B7 Heavy Hex Bolts Heavy Hex Cap Screws

Standard: ASME/ANSI B18.2.1, ASME/ANSI B18.2.3.7M

(Various types of head are available)

Inch Size: 1/2”-2.3/4” with various lengths

Metric Size: 1/2-M72 with various lengths

Grade: ASTM A193 B7

Finish: Black Oxide, Zinc Plated, Zinc Nickel Plated, PTFE etc.

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports

Please feel free to contact us for more details.

ASTM A325 / A325M Heavy Hex Structural Bolts

The bolts are intended for use in structural connections. These connections are covered under the requirements of the Specification for Structural Joints Using ASTM A325 Bolts, approved by the Research Council on Structural Connections, endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.

Dimension: ASME B18.2.6 (Inch Size),  ASME B18.2.3.7M (Metric Size)

Thread Size: 1/2″-1.1/2″,  M12-M36, with various lengths

Grade: ASTM A325 / A325M Type-1

Finish: Black Oxide, Zinc Plating, Hot Dip Galvanized, Dacromet, and so on

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive price,Timely delivery; Technical support, Supply Test Reports

Please feel free to contact us for more details.

In 2016, ASTM A325 was officially withdrawn and replaced by ASTM F3125, in which A325 now becomes a grade under the F3125 specification.  The F3125 specification is a consolidation and replacement of six ASTM standards, including; A325, A325M, A490, A490M, F1852, and F2280. 

Prior to its withdrawl in 2016, the ASTM A325 specification covered high strength heavy hex structural bolts from 1/2″ diameter through 1-1/2″ diameter. These bolts are intended for use in structural connections and therefore have shorter thread lengths than standard hex bolts. 

This specification is applicable to heavy hex structural bolts only. For bolts of other configurations and thread lengths with similar mechanical properties, see Specification A449.

Bolts for general applications, including anchor bolts, are covered by Specification A449. Also refer to Specification A449 for quenched and tempered steel bolts and studs with diameters greater than 1-1/2″ but with similar mechanical properties.

 

 

 

ASTM A325M 8S Metric Size Heavy Hex Structural Bolts

The bolts are intended for use in structural connections. These connections are covered under the requirements of the Specification for Structural Joints Using ASTM A325 Bolts, approved by the Research Council on Structural Connections, endorsed by the American Institute of Steel Construction and by the Industrial Fastener Institute.

 

Dimension: ASME/ANSI B18.2.3.7M

Thread Size: M12-M36 with various length

Grade: ASTM A325M Type-1

Grade Marking: A325M 8S

Finish: Black Oxide, Zinc Plating, Hot Dip Galvanized, Dacromet, and so on

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

 

Advantage: High Quality and Strict Quality Control, Competitive price,Timely delivery; Technical support, Supply Test Reports

Please feel free to contact us for more details.

 

ASTM A193/A193M B7 All Threaded Stud Bolts

API 6A 6D Flange Valve Wellhead ASME/ANSI Flange All Thread Stud Bolts

Alloy steel bolting for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.

Standard: IFI-136, ASME B16.5, DIN976

Inch Size: 1/4”-4” with various lengths

Metric Size: M6-M100 with various lengths

Other Available Grade:

ASTM A193/A193M B7, B7M, B16, B8 Class 1 & 2, B8M Class 1 & 2,

ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, and so on.

Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc.

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports

Please feel free to contact us for more details.

ASTM A193 Scope

Originally approved in 1936, this specification is heavily utilized in petroleum and chemical construction applications.  The ASTM standard covers alloy steel and stainless steel bolting materials for high temperature or high pressure service. This specification includes fasteners intended for use in pressure vessels, valves, flanges, and fittings. Although, this material is often available in national coarse (UNC) thread pitches, if being used in traditional applications, threads are specified 8 threads per inch (tpi) for diameters above one inch.

Below is a basic summary of a few of the common grades. ASTM A193 covers a number of other standard specifications not covered in this description including B5, B6, and B16.

Grades

B7

Alloy steel, AISI 4140/4142 quenched and tempered

B8

Class 1 Stainless steel, AISI 304, carbide solution treated.

B8M

Class 1 Stainless steel, AISI 316, carbide solution treated.

B8

Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened

B8M

Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened


Mechanical Properties

Grade

    Size

Tensile ksi, min

Yield, ksi, min

Elong, %, min

RA % min

B7

    Up to 2-1/2  

125

105

16

50

    2-5/8 – 4

115

95

16

50

    4-1/8 – 7

100

75

18

50

B8 Class 1

    All

75

30

30

50

B8M Class 1

    All

75

30

30

50

B8 Class 2

    Up to 3/4

125

100

12

35

    7/8 – 1

115

80

15

35

   1-1/8 – 1-1/4

105

65

20

35

   1-3/8 – 1-1/2

100

50

28

45

B8M Class 2

    Up to 3/4

110

95

15

45

   7/8 – 1

100

80

20

45

   1-1/8 – 1-1/4

95

65

25

45

   1-3/8 – 1-1/2

90

50

30

45


Recommended oreški and 
podložke

Bolt Grade

oreški

podložke

B7

A194 Grade 2H

F436

B8 Class 1

A194 Grade 8

SS304

B8M Class 1

A194 Grade 8M

SS316

B8 Class 2

A194 Grade 8

SS304

B8M Class 2

A194 Grade 8M

SS316


Strain hardened nuts available as a supplementary requirement

ASTM A320/A320M L7 All Threaded Stud Bolts

Alloy steel bolting for pressure vessels, valves, flanges, and fittings for low-temperature service.

Standard: IFI-136, ASME B16.5, DIN976

Inch Size: 1/4”-2.1/2” with various lengths

Metric Size: M6-M64 with various lengths

Other Available Grade:

ASTM A193/A193M B7, B7M, B16 B8 Class 1 & 2, B8M Class 1 & 2,

ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, and so on.

Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc.

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports

Please feel free to contact us for more details.

ASTM A193/A193M B7M All Threaded Stud Bolts

Alloy steel bolting for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.

Standard: IFI-136, ASME B16.5, DIN976

Inch Size: 1/4”-4” with various lengths

Metric Size: M6-M100 with various lengths

Other Available Grade:

ASTM A193/A193M B7, B7M, B16 B8 Class 1 & 2, B8M Class 1 & 2,

ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, and so on.

Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc.

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports

Please feel free to contact us for more details.

ASTM A320/A320M L7M All Threaded Stud Bolts

Standard: IFI-136, ASME B16.5, DIN976

Inch Size: 1/4”-2.1/2” with various lengths

Metric Size: M6-M64 with various lengths

Other Available Grade:

ASTM A193/A193M B7, B7M, B16 B8 Class 1 & 2, B8M Class 1 & 2,

ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, and so on.

Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc.

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports

Please feel free to contact us for more details.

ASTM A193/A193M B16 All Threaded Stud Bolts

Alloy steel bolting for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.

 

Standard: IFI-136, ASME B16.5, DIN976

Inch Size: 1/4”-4” with various lengths

Metric Size: M6-M100 with various lengths

Other Available Grade:

ASTM A193/A193M B7, B7M, B16 B8 Class 1 & 2, B8M Class 1 & 2,

ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, and so on.

Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc.

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports

Please feel free to contact us for more details.

Kromirane A193 B7 navojem vijake

API 6A Flange Valve Wellhead All Thread Stud Bolts

Standard: IFI-136, ASME B16.5, DIN976

Inch Size: 1/4”-4” with various lengths

Metric Size: M6-M100 with various lengths

Other Available Grade:

ASTM A193/A193M B7, B7M, B16, B8 Class 1 & 2, B8M Class 1 & 2,

ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, and so on.

Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc.

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports

Please feel free to contact us for more details.

ASTM F436 F436M Hardened Steel Washers

Hardened Circular, Clipped Circular, and Extra-Thick Washers, Beveled Washers

Metric Size: M12-M100 

Inch Size: 1/4”-4”

Material Grade: Through hardened washers shall have a hardness of 38 to 45 HRC, except when zinc-coated by the hot-dip process, in which case they shall have a hardness of 26 to 45 HRC.

Metric washers are suitable for use with fasteners covered in Specifications A 325M, A 490M, A 563M and with fasteners of Specification F 568 property classes 8.8 and higher.

Inch washers are suitable for use with fasteners covered in Specifications A325, A 354, A 449, and A 490.

Finish: Black Oxide, Zinc Plated, Hot Dip Galvanized, Dacromet, and so on

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive price,

Timely delivery; Technical support, Supply Test Reports

Please feel free to contact us for more details.

ASTM A193/A193M B7 Tap End Studs Double End Studs

API Flange Valve Wellhead Tap End Studs

Alloy steel bolting for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.

 

Standard: IFI-136, ASME B16.5

Inch Size: 1/4”-4” with various lengths

Metric Size: M6-M100 with various lengths

Other Available Grade:

ASTM A193/A193M B7, B7M, B16 B8 Class 1 & 2, B8M Class 1 & 2,

ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, and so on.

Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc.

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports

Please feel free to contact us for more details.

EN14399-5 Plain Washers EN14399-6 Chamfered Washers

For High Strength Structural Steel Bolting

Size: M12-M36

Finish: Black Oxide, Zinc Plated, Hot Dip Galvanized, Dacromet, and so on

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive price,Timely delivery; Technical support, Supply Test Reports

Please feel free to contact us for more details.

Din6916 Flat Round Washers For High Strength Structural Steel Bolting

Size: M12-M36

Finish: Black Oxide, Zinc Plated, Hot Dip Galvanized, Dacromet, and so on

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive price,Timely delivery; Technical support, Supply Test Reports

Please feel free to contact us for more details.

ASTM A320/A320M L7 Tap End Studs Double End Studs

Standard: IFI-136, ASME B16.5

Inch Size: 1/4”-2.1/2” with various lengths

Metric Size: M6-M64 with various lengths

Other Available Grade:

ASTM A193/A193M B7, B7M, B16 B8 Class 1 & 2, B8M Class 1 & 2,

ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, and so on.

Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc.

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports

Please feel free to contact us for more details.

DIN127B Spring Lock Washer

Size: M4-M76

Various Material Steel and Grade are available.

Finish: Black Oxide, Zinc Plated, Hot Dip Galvanized, Dacromet, and so on

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive price,Timely delivery; Technical support, Supply Test Reports

Please feel free to contact us for more details.

ASTM A193/A193M B7 Combination Studs Step Down Studs

Alloy steel bolting for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.

 

Standard: According to drawing

Inch Size: 1/4”-4” with various lengths

Metric Size: M6-M100 with various lengths

Other Available Grade:

ASTM A193/A193M B7, B7M, B16 B8 Class 1 & 2, B8M Class 1 & 2,

ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, and so on.

Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc.

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports

Please feel free to contact us for more details.

DIN125A Stanovanje podložke

Size: M4-M160

Various Material Steel and Grade are available.

Finish: Black Oxide, Zinc Plated, Hot Dip Galvanized, Dacromet, and so on

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive price,Timely delivery; Technical support, Supply Test Reports

Please feel free to contact us for more details.

USS is U.S. Standard Washers.

SAE Washers are produced to comply with Society of Automotive Engineers specifications. They are of smaller O.D. and thinner gauges than their counterpart sizes of U.S. Standard Washers.

Dimension: ANSI B18.22.1

Size: 1/4”-1.1/2”

Various Material Steel and Grade are available.

Finish: Black Oxide, Zinc Plated, Hot Dip Galvanized, Dacromet, and so on

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive price,Timely delivery; Technical support, Supply Test Reports

Please feel free to contact us for more details.

ASTM A320/A320M L7 Combination Studs

Standard: According to drawing

Inch Size: 1/4”-2.1/2” with various lengths

Metric Size: M6-M64 with various lengths

Other Available Grade:

ASTM A193/A193M B7, B7M, B16 B8 Class 1 & 2, B8M Class 1 & 2,

ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, and so on.

Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc.

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports

Please feel free to contact us for more details.