Alloy Steel GR 7M Fasteners


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Arrow Piping Solutions is the acclaimed manufacturer, exporter & suppliers of Alloy Steel GR 7M Fasteners. The company is involved in the manufacturing of various types of other components. We are here to fulfill your every specific requirement for any product. Alloy Steel GR 7M Fasteners is the premier product we mainly prepare with customized form. Also, at Arrow Piping Solutions., we produce a product in various size range & by using different coatings.


We have established a strong network of the dealer with which we supply our product quickly. The product has extensive usage and demand from various industrial segments. We provide our products to industries like aerospace, defense, automotive, petrochemical, waste management plants, marine, and pharmaceutical sectors. Alloy Steel GR 7M Fasteners is a customized product created by using high-grade raw material.


Arrow Piping Solutions carries a wide range of Alloy Steel GR 7M fasteners in a variety of size, dimensions standards and tolerance to meet your project’s needs—including fasteners in dimension as per ASME B1.1, ASME B18.2.1, ASME B18.2.2, ASME B18.2.8, ASME B18.6.3, ASME B18.21.1, ASME B1.13M Fasteners / DIN , ANSI, JIS, ASTM standards specifications / weight chart & thickness of Alloy Steel Grade 7M fasteners.


Also, we manufacture every batch of the product by considering various industrial requirements and specifications. Alloy Steel GR 7M Fasteners that we dispatch comes with proper certification and reports. We provide multiple certificates in the form of a raw material testing certificate, warranty report, third party inspection report, and many more. Arrow Piping Solutions. is a company that can have the latest machinery and tools.


We strive to produce products by using advanced machinery and technology. The modular production supports us in matching international product standards. For this, Arrow Piping Solutions. imports the high-grade raw material from our authorized suppliers. We pass the raw material for various tests like hardness, strength, and some other mechanical and chemical parameters. After performing the thorough analysis, we use such material for further product formation.

Alloy Steel GR 7 Fasteners Specifications

Specification ASTM A194 / ASME SA194
Dimension DIN, ISO, ASTM, JIS, BS, GB, IS and all International Standards
Size Range M3 - M56 | 3/6" to 2" | Custom Sizes
Length 3 mm to 200 mm

Alloy Steel ASTM A194 GR 7M Grades

Grade Raw Material Description
GR 7M Alloy Steel Quenched & Tempered

Alloy Steel GR 7M Fasteners Dimensions

Full Range of Alloy Steel GR 7M Fastener Products both Imperial & Metric. Dimensions range from M3 to M72

Product Type Standards
Hexagon Bolts / Set Screws DIN 931, DIN 933, BS 1768, UNI 5739, ISO 4014, ISO 4017, ANSI B18.2.1
Stud Bolts BS4882, DIN 976, BS 1769, BS 1083, BS 3692
Hexagon Nuts DIN 934, BS 1768, ISO 4032, ISO 4033, ANSI B18.2.2
Socket Capscrews DIN 912, DIN 6912, DIN 7984, ANSI B18.3, ISO 4762, UNI 5931
Socket & Slotted Set Screws DIN 913, DIN 914, DIN 915, DIN 916, DIN 551, DIN 553, DIN 438
Socket & Slotted Countersunk Screws DIN 963, DIN 7991, BS 4168, BS 1981, BS 2470
Studs DIN 938, DIN 939, DIN 2510, BS 4439, BS 2693
Washers DIN 125, DIN 9021, BS 4320, BS 3410
Spring Washers DIN 127, BS 4464, BS 1802

ASTM A194 GR 7M Fasteners Chemical Composition

C Mn P S Si Cr Mo
Alloy Steel GR 7M 0.37 - 0.49 0.65 - 1.10 0.035 0.04 0.15 - 0.35 0.75 - 1.20 0.15 - 0.25

Alloy Steel ASTM A194 GR 7M Fasteners Mechanical Properties

Specification Marking Nom. Size, In. Tempering Temp. °F Proof Load Stress, ksi Hardness Min Hardness Max
A194 Gr 7M 7M 1/4 - 4 1100 150 B159 B237

ASTM A194 GR 7M Hardness Requirement

Grade & Type Brinell Hardness Rockwell Hardness C Scale Rockwell Hardness B Scale
GR 7M 159-235 - 84 - 99

ASTM A194 GR 7M Proof Load (Inch Series)

Nominal Size, inch Threads per inch Stress Area inch Proof Load, lbf GRADE 7M Heavy Hex Proof Load, lbf GRADE 7M Hex
1/4" 20 0.0316 4130 3820
5/16" 18 0.0524 6810 6290
3/8" 16 0.0774 10080 9300
7/16" 14 0.1063 13820 12760
1/2" 13 0.1419 18450 17030
9/16" 12 0.1820 23660 21840
5/8" 11 0.2260 29380 27120
3/4" 10 0.3340 43420 40080
7/8" 9 0.4620 60060 55440
1" 8 0.606 78780 72720
1 1/8" 8 0.7900 102700 94800
1 1/4" 8 1.0000 130000 120000
1 3/8" 8 1.2330 160200 148000
1 1/2" 8 1.492 194000 170040

ASTM A194 GR 7M Marking

Grade Type Hot Forged or Cold Punched Nuts Nuts Machined from Bar Stock
GR 7M 7M 7MB

Alloy Steel GR 7M Fasteners Application Industries

  • Textile machinery
  • Oil and gas industry
  • Pulp and paper industry
  • Power plants
  • Energy industries
  • Furniture
  • Pharmaceutical processing industry
  • Modern architecture
  • Home appliances
  • Water waste projects
  • Synthetic fiber
  • Heat exchanger
  • Fluid piping
  • Dairy and food processing