What is the expected lifespan of ASTM A193 B7 Socket Head Cap Screws in corrosive environments?

These aesthetically pleasing but sturdy fasteners have a fully threaded design and uniform diameter throughout the shaft. ASTM A193 B7 socket head cap screws use chromium-molybdenum stainless steel suited to corrosive environments. They can work in highly abrasive settings like petroleum generation and chemical processing.

An A193 GRB7 cap head screw can last over 50 years if properly maintained.
Buyers can request for additional treatments like zinc plating, PTFE (polytetrafluoroethylene or Teflon), black phosphate, or galvanisation. Such coating improves the longevity of an SA 193 B7 hex cap screw.

ASME SA 193 B7 hex cap screw manufacturer in India

ASTM A193 B7 socket head cap screws manufacturer in india

Are bulk order discounts available when purchasing an SA 193 B7 Hex Cap Screw in large quantities?

Several demanding industries use an A193 GR B7 socket cap screw, including oil and gas refineries, petrochemicals, and power generation. We advise our clients to assess their long-term product and material needs to ensure consistent supply and avoid project delays.

Hilton Steel dedicatedly cultivates fruitful B2B relationships by partnering with diverse sectors for their B7 steel flat head cap screw requirements. We offer competitive, budget-friendly rates for all our fasteners. Placing bulk orders can prove more cost-effective. We will be happy to discuss volume-based savings to streamline timely deliveries to you.

Supplier of ASTM A193 B7 cap screw and hexagon socket head cap screw in Mumbai at lowest price

ASTM A193 B7 Socket Head Cap Screws

ASTM A193 B7 Socket Head Cap Screws

SA 193 B7 Hex Cap Screw

SA 193 B7 Hex Cap Screw

ASTM A193 B7 Cap Screw

ASTM A193 B7 Cap Screw

As stockist we keep bulk stock of A193 B7 socket head screw and bolts at our stockyard at pocket friendly price with a plain or black oxide coating and finish

What is the primary difference between plain and black oxide coating for an ASTM A193 B7 cap screw?

Protective coats for an ASTM A193 B7 cap screw prolong its useful life in challenging environments. Black oxide coating (or blackening) is conducted by immersing the fastener in an alkaline salt solution to trigger the formation of a magnetite (Fe3O4).

Unlike a plain surface, blackening involves a chemical treatment to provide mild corrosion resistance. It also lowers reflection and friction. The difference in thickness is marginal: about 0.000005 to 0.000010 inches.

ASTM A193 B7 socket head cap screws specifications

ASTM A193 B7 socket head cap screws specifications

Length Hardness Metric Size Specifications
3mm ‚Äď 200mm 35HRC M6 to M152 ASTM A193¬†/ ASME SA193
Metric Thread Inch Sizes Imperial Thread Application
ISO, ASME ¬ľ” to 8″ ASME, BSW, BSF
  • Petrochemical
  • Oil and Gas
  • Power Generation
Thread Standard Testing Heat treatment Coating
ISO 268, BS 84, ASME B1.13M, ISO 724, ISO 68-1, ASME B1.1, BS 3643
  • Flattening Test
  • IGC Test
  • Chemical Analysis
1150 ¬įF [620 ¬įC] minimum zinc plated, hot dip galvanized, black phosphate, PTFE
Fully certified SA 193 Gr B7 cap head screw stockholders, offering B7 socket and flat head screw at discounted price
What are the top 7 advantages of an SA 193 Gr B7 Hexagon Socket Head Cap Screw?

These fasteners deliver dependable clamping and higher torque for critical applications. Other significant advantages of an SA 193 Gr B7 hexagon socket head cap screw are:

  • Excellent tensile strength of 860 MPa
  • Can handle greater loads due to six stress-bearing surfaces
  • Internal leads to space saving and improved aesthetics
  • Delivers associated weight reduction
  • Relatively easy to install
  • An ASTM A 193 GR B7 allen head screw can handle temperatures up to 450¬įC or 840¬įF.
  • Good hardness of 35 HRC
Types of A193 B7 socket head cap screws

SA 193 Gr B7 Hexagon Socket Head Cap Screw

SA 193 Gr B7 Hexagon Socket Head Cap Screw

  • Sizes: M6 to M152
  • Hardness : 35HRC
  • Tensile strength: 125 Ksi(860 Mpa)

SA193 B7 Socket Head Bolt

SA193 B7 Socket Head Bolt

  • Inch Sizes: ¬ľ” to 8″
  • Coatings: PTFE, black phosphate, zinc plated, hot dip galvanized
  • Yield strength: 105 Ksi(720 Mpa)

A193 B7 Socket Head Screw

A193 B7 Socket Head Screw

  • Applications: Industrial machinery, Automotive and transportation
  • Temperature range: 1150 ¬įF [620 ¬įC] minimum
  • Length: 3mm to 200mm
What are the pitch thread options for an SA193 B7 Socket Head Bolt?

The thread pitch, or the distance between the threads when measured along the length of the bolt, can vary by the application. Under ASTM A193, studs with diameters over 1 inch frequently use 8UN, i.e., eight threads per inch. Other options include UNC (Unified National Coarse) and 6UN.

The standard dimensions for an SA193 B7 socket head bolt are 6 to 30 inches (in length). Hilton Steel can help buyers find the fastener for their requirements by providing customised dimensions.

We guarantee fastest delivery of ASTM A 193 gr B7 Allen head screw as per BSW, BSF, UNC, UNF and FINE pitch threads with all documents including mill certificate
Differences between the major standards for an A193 B7 socket head screw such as ASTM, ISO, DIN, or JIS

Our company complies with global specifications for industrial fasteners like an A193 B7 socket head screw. Buyers can order these components per the required standards, like DIN or JIS. Generally, all of them have comparable strength and threading.

Customers may find differences in the wrench size required for assembly. The standards may also have varying focus areas. For instance, JIS prioritises accuracy and allows for more customisation, while DIN commits to intensive testing, compatibility, and easy implementation.

A193 GR B7 socket cap screw chemical composition
Carbon Manganese, maximum Phosphorus, maximum Silicon Sulfur, maximum Molybdenum Chromium
0.08-0.15 1.00 0.040 1.00 maximum 0.030 0.15-0.25 11.5 – 13.5
A193 GRB7 cap head screw mechanical properties
Grade Yield Strength Dia Tensile Strength Elongation Hardness Reduction
Grade B7 720 M64 and under 860 16 35 HRC or 321 HBW 50
655 Over M64 to M100 795 16 35 HRC or 321 HBW 50
515 Over M100 to M180 690 18 35 HRC or 321 HBW 50
ASTM A 193 GR B7 allen head screw recommanded products
Bolting Grade Washer Grade Nut Grade
A193 Grade B7 ASTM F436 A194 Grade 2H, 2HM
B7 Steel flat head cap screw raw material description
Grade Raw Material Descriptions
A193 Grade B7 Chromium Molybdenum AS, Quenched & Tempered
Standards of ASTM A193 b7 socket head cap screws
Type UNI ISO DIN ASME
Metric Imperial
Full Head Socket Head Cap Screws 5931 4762 912 B18.3.1M B18.3
Low Head Socket Head Cap Screws 9327 7984
SA 193 B7 hex cap screw Dimensions as per DIN 912
Thread Pitch Size (d1) Key Engagement (t) Head Height (k) Head Diameter (d2) Key Size (s)
Nominal Max Min Max Min Max Min
0.30 M1.4 0.6 1.40 1.26 2.74 2.46 1.360 1.320
0.35 M1.6 0.7 1.60 1.46 3.14 2.86 1.560 1.520
0.40 M2 1 2.00 1.86 3.98 3.62 1.560 1.520
0.45 M2.5 1.1 2.50 2.36 4.68 4.32 2.060 2.020
0.50 M3 1.3 3.00 2.86 5.68 5.32 2.580 2.520
0.70 M4 2 4.00 3.82 7.22 6.78 3.080 3.020
0.80 M5 2.5 5.00 4.82 8.72 8.28 4.095 4.020
1.00 M6 3 6.00 5.70 10.22 9.78 5.140 5.020
1.25 M8 4 8.00 7.64 13.27 12.73 6.140 6.020
1.50 M10 5 10.00 9.64 16.27 15.73 8.175 8.025
1.75 M12 6 12.00 11.57 18.27 17.73 10.175 10.025
2.00 M14 7 14.00 13.57 21.33 20.67 12.212 12.032
2.00 M16 8 16.00 15.57 24.33 23.67 14.212 14.032
2.50 M18 9 18.00 17.57 27.33 26.67 14.212 14.032
2.50 M20 10 20.00 19.48 30.33 29.67 17.230 17.050
2.50 M22 11 22.00 21.48 33.39 32.61 17.230 17.050
3.00 M24 12 24.00 23.48 36.39 35.61 19.275 19.050
3.00 M27 13.5 27.00 26.48 40.39 39.61 19.275 19.065
3.50 M30 15.5 30.00 29.48 45.39 44.61 22.275 22.065
3.50 M33 18 33.00 32.38 50.39 49.61 24.275 24.065
4.00 M36 19 36.00 35.38 54.56 53.54 27.275 27.065
4.00 M39 22 39.00 38.38 58.46 57.54 27.275 27.065
4.50 M42 24 42.00 41.38 63.46 62.54 32.330 32.080
4.50 M45 24 45.00 44.38 67.46 66.54 32.330 32.080
5.00 M48 28 48.00 47.38 72.46 71.54 36.330 36.080
5.50 M56 34 56.00 55.26 84.54 93.46 41.330 41.080
6.00 M64 38 64.00 63.26 96.54 95.46 46.330 46.080
6.00 M72 43 72.00 71.26 108.54 107.46 55.400 55.100
6.00 M80 48 80.00 79.26 120.54 119.46 65.400 65.100
6.00 M90 54 90.00 89.13 135.63 134.37 75.400 75.100
6.00 M100 60 100 99.13 150.63 149.37 85.470 85.120
Torque chart of A193 B7 socket head screw
Max Head Height Size Max Head Width Hex Key Size R.S Torque (NM)
10.9 12.9
2.0 M2 3.98 M1.5 / 1.5 0.5 0.63
2.5 M2.5 4.68 M2 / 2 1.03 1.27
1.60 M1.6 3.14 M1.5 / 1.5 0.25 0.30
4.0 M4 7.22 M3 / 3 4.27 4.83
3.0 M3 5.68 M2.5 / 2.5 1.83 2.20
5.0 M5 8.72 M4 / 4.0 8.64 10.0
8.0 M8 13.27 M6 / 6 35.6 41.0
6.0 M6 10.22 M5 / 5 14.7 16.8
10.0 M10 16.27 M8 / 8 70.6 81.0
14.0 M14 21.33 M12 / 12 195 226
12.0 M12 18.27 M10 / 10 123 142
16.0 M16 24.33 M14 / 14 305 350
20.0 M20 30.33 M17 / 17 596 685
18.0 M18 27.33 M14 / 14 420 485
22.0 M22 33.39 M17 / 17 811 930
27.0 M27 40.39 M19 / 19 1508 1730
24.0 M24 36.39 M19 / 19 1031 1180
30.0 M30 45.39 M22 / 22 2048 2380
36.0 M36 54.46 M27 / 27 3580 4190
33.0 M33 50.39 M24 / 24 2787 3262
39.0 M39 58.46 M27 / 27 4633 5420
A193 gr B7 socket cap screw size chart
PRODUCT ASTM THREAD DIAMETER ANSI/ASME TENSILE PSI / HARDNESS BS
Socket Low Head Cap Screw F835 UNC/UNF #8 to 1/2 As Per Unbrako Specification 170,000
Socket Head Cap Screw A574 1936 & 1960
UNC/UNF/BSW
#0 to 2 B18.3 190,000 <1/2
180,000>1/2
2470

 

PRODUCT GRADE SIZE STANDARD TENSILE STRENGTH
Hex Cap Screw 5 1/4 to 2 ASME B18.2.1 120,000 psi min (1/4 to 1)
105,000 psi min (over 1 to 1-1/2)
Hex Cap Screw 8 1/4 to 2 ASME B18.2.1 150,000 psi min
Dimension of ASTM A193 B7 cap screw as per ISO 4762
Basic Screw Diameter Thread Pitch C H D K F T S W E
Top Chamfer or Radius Head Diameter Body Diameter Head Height Fillet Transition Diameter Key Engage- ment Socket Size Across the Flats Wall Thick- ness Socket Size Across the Corners
Max Max Min Max Min Max Min Max Min Max Min Min Min
M2 0.4 0.2 3.98 3.62 2.00 1.86 2.00 1.86 2.6 1 1.545 1.520 0.55 1.73
M1.6 0.35 0.16 3.14 2.86 1.60 1.46 1.60 1.46 2 0.7 1.545 1.520 0.55 1.73
M3 0.5 0.3 5.68 5.32 3.00 2.86 3.00 2.86 3.6 1.3 2.56 2.52 1.15 2.87
M2.5 0.45 0.25 4.68 4.32 2.50 2.36 2.50 2.36 3.1 1.1 2.045 2.020 0.85 2.3
M4 0.7 0.4 7.22 6.78 4.00 3.82 4.00 3.82 4.7 2 3.071 3.020 1.4 3.44
M6 1 0.6 10.22 9.78 6.00 5.82 6.00 5.7 6.8 3 5.084 5.020 2.3 5.72
M10 1.5 1 16.27 15.73 10.00 9.78 10.00 9.64 11.2 5 8.115 8.025 4 9.15
M5 0.8 0.5 8.72 8.28 5.00 4.82 5.00 4.82 5.7 2.5 4.084 4.020 1.9 4.58
M12 1.75 1.2 18.27 17.73 12.00 11.73 12.00 11.57 13.7 6 10.115 10.025 4.8 11.43
M8 1.25 0.8 13.27 12.73 8.00 7.78 8.00 7.64 9.2 4 6.095 6.020 3.3 6.86
M16 2 1.6 24.33 23.67 16.00 15.73 16.00 15.57 17.7 8 14.142 14.032 6.8 16
M20 2.5 2 30.33 29.67 20.00 19.67 20.00 19.48 22.4 10 17.23 17.05 8.6 19.44
M30 3.5 3 45.39 44.61 30.00 29.67 30.00 29.48 33.4 15.5 22.275 22.065 13.1 25.15
M36 4 3.6 54.46 53.54 36.00 35.61 36.00 35.38 39.4 19 27.275 27.065 15.3 30.85
M24 3 2.4 36.39 35.61 24.00 23.67 24.00 23.48 26.4 12 19.275 19.065 10.4 21.73
M42 4.5 4.2 63.46 62.54 42.00 41.61 42.00 41.38 45.6 24 32.33 32.08 16.3 36.57
M56 5.5 5.6 84.54 83.46 56.00 55.54 56.00 55.26 63 34 41.33 41.08 19 46.83
M48 5 4.8 72.46 71.54 48.00 47.61 48.00 47.38 52.6 28 36.33 36.08 17.5 41.13
M64 6 6.4 96.54 95.46 64.00 63.54 64.00 63.26 71 38 46.33 46.08 22 52.53