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Stainless Steel Round Head Bolts

SS Flat Round Head Square Neck Bolt And Nuts Manufacturer in india in custom size

Table Of Content:

 

Stainless Steel Round Head Bolts

 

Suppliers of 5/16, 6mm, M4 Galvanized Round Head Bolts, Check sizes & updated price list

Round bolts are sometimes known as coach bolts or carriage bolts. Depending on the situation, these fasteners can be utilised in both metal and wood. Therefore, stainless steel round head bolts can be used to fix metal to metal or metal to wood. Contrary to their construction, the only distinction between the Stainless Steel Round Head Square Neck Bolt and other typical bolts is their mushroom heads. The mushroom head on these bolts is just superficially developed. These stainless steel 5/16 round head bolt fasteners are also known as round-head square-neck bolts. The latter word denotes the square-shaped neck of these fasteners.

A square neck that is attached to a shank with a circular cross section follows the mushroom head of the Stainless Steel Round Square Head Bolts immediately. The square neck of the stainless steel M4 round head bolts helps the fastener to self-lock and hinge, especially when the bolt has been put through a square hole in a metal strap. As a result, only one tool is now required to install the SS Round Flat Head Bolts. The stainless steel round head bolts and nuts are often installed with a spanner or wrench that only works from one side. Stainless steel 6mm round head bolts are often used in security fasteners like locks and bolts.

The bolt in these security components must only be detachable from one side. The Stainless Steel Flat Round Head Bolts' smooth, dommed head and the square nut assembly below the fastener will prevent it from being unlocked from the unlocked side. These fasteners could be given a surface treatment, such as coating or surface treatments, to increase their corrosion resistance. In comparison to electroplated fasteners, stainless steel round head bolts have a higher tendency to resist corrosion.

 

before buy Compare Stainless Steel Round Head Bolts price with SS Eye Bolt price list

 

Specification of Stainless Steel Round Head Bolts
DIN Standard B.S. DIN 933, DIN 931, DIN 934, DIN 912, DIN 603, DIN 6923, DIN 970, DIN 7981, DIN 7982, DIN916, DIN 913, DIN 7985
UTS – Unified Thread Standard UNC, UNF, UNEF, UNS, NPT, NPTF
Dimensions ASME B18.6.3 **Exception: screws 6 inches and shorter are fully threaded.
ISO – International Organization for Standardization ISO 4032, ISO 4033, ISO 4017, ISO7380 JIS standards
Grade
18-8 Stainless Steel, 4.8, 8.8, A2, A4, A2-70; A4-70; A4-80 Round head Bolts
British standards BS6105 (old: BSENISO 3506) which covers Part 1 bolts, screw and Us, part 2 nuts and part 4 tapping screws.
Stainless Steel Round Head Bolt Size
    • Cold Froging : M2-M24
    • Hot forging M24-M100, 1-1/2” Dia, up to 1100mm lg
    • Machining and CNC for Customized connecting element: up to M100 / 4” Dia, up to 1500mm lg

M2, M3, (M3.5), M4, M5, M6, M8, M10, M12, (M14), M16, (M18), M20, (M22), M24, (M27), M30, M33, M36, M42, (M45), M48 to M160 and Custom Sizes
Length 3 mm to 200 mm
Threads: METRIC, BSW, BSF, UNC, UNF or as required
Stainless Steel Round Head Bolt Standard: DIN, ISO, JIS, GB, IS, BS, ASTM and all International Standards
ANSI – American National Standards Institute
  • ANSI B 18.2.4 2M
  • ANSI B 28.2.4 1M
  • Round head Boltslength are defined in ASME B16.5 standard
  • Hex nuts are defined in ASME B18.2.2
  • ASME B18.5
  • GB/T5782, GB/T5783, GB5783
Tolerance +/-0.01mm to +/-0.05mm
Head drive: Phillips, Slotted, Phillips/Slot, Six-Lobe, etc
Finishing: Zinc (yellow, white, blue, black), black oxide,
Geometry, Dacroment, anodizing, nickel plated, plated zinc-nickel, Stainless steel: Passivated
Self-Colour, Hot Dip Galvanised (HDG), Bright Zinc Plated (BZP), Sherardized, Stainless Steel, Mechanically Applied coating and some special one like DACROMET
Finish Per ASTM A380/A380M
Stainless Steel Round Head Bolt Production process Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing
Origin and service-region: European
Origin of Stainless Steel Round head Bolts are Western European. However projects with eastern origin are possible on request.
Stainless Steel Round Head Bolt Surface Coating:
  • Hot Dipped Galvanizing Round head Bolts
  • Cadmium Round head Bolts
  • Teflon Round head Bolts
  • Zinc Electro Plating (Hexavalent or Trivalent Chrome)
  • Xylon Round head Bolts
  • Zinc Phosphate Round head Bolts
  • Manganese Phosphate
  • Ptfe Coated Round head Bolts
  • ZAC (Zinc Alluminium Flake Coating)
  • Phosphate Round head Bolts

All surface finishes can be supplied, including Zinc, Galvanised, Sherardized, Electroless Nickel, Dacromet, Geomet & PTFE.
Surface treatment
  • Passivation
  • Polish
  • Anodizing
  • Sand blasting
  • Black oxide coating
  • Heat-disposing
  • Rust preventive oil
  • Hot dip galvanized Round head Bolts
  • Electroplating (color, blue, white, black zinc, Ni, Cr, tin, copper, silver)
Top Manufacturers SPAX® Screws, GKW, Unbrako, Kundan, APL, Sundaram Precision, Infasco, EBY Fastener Etc.
Stainless Steel Round head Bolts Packing: IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request
Why choose us?
  • Best Price in India and compare to China
  • Professional technical team
  • High precision threads
  • Strong production line
  • Micro Metals will be your reliable partner
MOQ 5 pieces
Stainless Steel Round Head Bolt Test Certificate:
  • Manufacturer Test Certificate as per EN 10204 / 3.1,
  • Tensile testing to ISO 898-1
  • Nut proof load testing to ISO 898-2
  • Suitability for preloading to EN 14399-2
  • Suitability test for calibrated preload to EN 14399-10
  • Charpy Impact testing in accordance with ISO 148-1
  • Hardness testing to ISO 6508-1
  • Tri-Roll Thread Comparators
  • Calibrated gauges and tools
Free Samples Yes
Delivery time Regular product is about 7-15 days, custom product will according to special requirement
Payment Terms T/T, Paypal, Western Union, L/C or Trade Assurance 30% deposit & balance before shipping
Other available material
  • Stainless Steel Round head Bolts: SUS201, SUS304, SUS316, SUS410
  • Brass Round head Bolts: C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200CuZn37), C28000(CuZn40)
  • Bronze Round head Bolts: C51000, C52100, C54400 etc
  • Aluminum Round head Bolts: Al6061, Al6063 etc
  • Aluminum Alloy Round head Bolts: Al6061, Al6063 etc
  • Titanium and Titanium Alloy Round head Bolts: TAD, TA1-TA8, TB2, TC1-TC10
  • Alloy steel Round head Bolts: SCM435, C10B21, C10B33
Stainless Steel Round Head Bolt Uses & application Wind tower, Nuclear power, Railway, Automotive industry, Construction, Electronic industry

 

SS flat round head bolts price list
Description Per Unit (INR) Price in USD Price In EURO
Screw Threaded Of Stainless Steel -m12 X15mm Round X 29mm Long, Socket Head Bolt, Hohlschraube, S.s. 304. 15 0.20 0.17
Stainless Steel Elevator Bucket Fixing Special Bolts Complete With Nuts & Washersize 3/8(M-10)x 1-1/2 Round Flat Head 80 1.09 0.89
66a Nuts/bolts/screws/washer Made Of alloy Steel Including Stainless Steel 304 Round Head Bolt M8x60 24 0.33 0.27
66a Nuts/bolts/screws/washer Made Of alloy Steel Including Stainless Steel 304 Round Head Bolt M8x120 36 0.49 0.40
66anuts/bolts/screws/washer Made Of Alloy Steel Including Stainless Steel 304 Round Head Bolt M8 X 60 23 0.31 0.26
66anuts/bolts/screws/washer Made Of Alloy Steel Including Stainless Steel 304 Round Head Bolt M8 X 120 35 0.48 0.39
Bolts& Washers(Made Of Alloy Steel)including Stainless Steel Round Head Square Neck Bolt & Washer-5000pcs 198 2.70 2.20
Stainless Steel 316(A4) T Head Bolt With I Nut & Round Washer For D.i.flang Adaptor M12x135 Mm Length Thread Length 85 Mm 184 2.51 2.05
Stainless Steel 316(A4) T Head Bolt With I Nut & Round Washer For D.i.flang Adaptor M12x120 Mm Length Thread Length 75 Mm 159 2.17 1.77
Stainless Steel 316(A4) T Head Bolt With I Nut & Round Washer For D.i.flang Adaptor M12x155 Mm Length Thread Length 85 Mm 215 2.93 2.39
Other Fasteners - Stainless Steel 316 round Head Bolt Unc 1/4 X 15 Mm 6 0.082 0.067

 

Stainless Steel Packaging of Round Head Square Neck Bolt
ss round head bolts packaging
stainless steel round head bolts packaging

 

Weight Chart of Stainless Steel 5/16 round head bolts

HIGH STRENGTH Round Head STRUCTURAL BOLTS AS PER IS 3757

APPROXIMATE WEIGHT IN KGS FOR 100NOS

LENGTH

DIAMETER

M16

M20

M22

M24

M27

M30

M36

40

10.28

45

11.07

180.30

50

11.86

19.25

25.20

55

12.65

20.50

26.69

33.74

60

13.44

21.73

28.18

35.22

48.09

65

14.23

22.96

29.67

37.29

50.34

70

15.02

24.19

31.16

39.07

52.58

67.25

75

15.81

25.43

32.66

40.84

54.83

70.03

108.91

80

16.60

26.66

34.15

42.62

57.08

72.80

112.90

85

17.39

27.89

35.64

44.39

59.33

75.58

116.90

90

18.17

29.13

37.13

46.17

61.57

78.35

120.89

95

18.96

30.36

38.62

47.94

63.82

81.13

124.89

100

19.75

31.59

40.12

49.72

66.07

83.90

128.88

110

21.14

33.77

42.78

52.85

68.56

88.84

136.20

120

22.72

36.24

45.77

56.41

73.06

94.39

144.19

130

24.30

38.70

48.75

59.96

77.55

99.94

152.18

140

25.88

41.17

51.73

63.51

82.05

105.49

160.17

150

27.46

43.93

54.72

67.06

86.54

111.04

168.16

160

29.03

46.10

57.70

70.61

91.04

116.59

176.15

170

30.61

48.57

60.69

74.16

95.53

122.14

184.14

180

32.19

51.03

63.67

77.71

100.03

127.69

192.13

190

33.77

53.50

66.65

81.26

104.52

133.24

200.12

200

35.35

55.96

69.44

84.82

109.02

138.79

208.11

210

113.52

144.34

216.10

220

118.01

149.89

224.09

230

122.51

155.44

232.08

240

127.00

160.99

240.07

250

131.50

166.54

248.06

260

135.99

172.09

256.05

270

140.49

177.64

264.04

280

144.98

183.19

272.03

290

149.48

188.74

280.02

300

153.97

194.29

288.01

 

SS Round Head Bolts Dimensions

Stainless steel round head bolts dimension

Stainless Steel Bolt Diameter C H
Stainless Steel Head Diameter Stainless Steel Head Height
Max Min Max Min
1⁄2 1.094 1.032 0.270 0.250
5⁄8 1.344 1.219 0.344 0.313
3⁄4 1.594 1.469 0.406 0.375
7⁄8 1.844 1.719 0.469 0.438
1 2.094 1.969 0.531 0.500
11⁄4 2.850 0.531 0.500

*Dimensions per ASME B18.5 1990 (R 1998) cover diameters up to 1″. Bolts over 1″ use custom head dimensions.

 

SS round head fin neck bolts Surface Coating
  • Ceramic Filled PTFE Coating
  • Xylon Coating
  • Teflon Coating
  • Silver Coating
  • Aluminium Coating
  • Phosphate Coating
  • Zinc Coating
  • Dacromet Coating
  • Electroless Nickel Plated Coating
  • Zinc Nickel Coating

 

Stainless Steel hex socket round head bolts Standard Thread Length

Bolt lengths ≤ 6″: Thread length = (2 X diameter) + 1⁄4”
Bolt lengths > 6″: Thread length = (2 X diameter) + 1⁄2”

 

Testing done on Stainless Steel 304 round head structural bolts
  • Mechanical Testing Such as Tensile of Area
  • Micro and MacroTest
  • Positive Material Identification – PMI Testing
  • Hardness Test
  • Flaring Test
  • Pitting Resistance Test
  • Chemical Analysis – Spectro Analysis
  • Flattening Test
  • Intergranular Corrosion (IGC) Test

 

Torque Chart of SS 316 metric round head square neck bolts
Torque Specifications
Stainless Steel Bolt Size
Inches or #
Threads
Per Inch
Standard Dry Torque in Inch-Pounds
304
Stainless Steel
316
Stainless Steel
#2 56 2.5 2.6
64 3.0 3.2
#3 48 3.9 4.0
56 4.4 4.6
#4 40 5.2 5.5
48 6.6 6.9
#5 40 7.7 8.1
44 9.4 9.8
#6 32 9.6 10.1
40 12.1 12.7
#8 32 19.8 20.7
36 22.0 23.0
#10 24 22.8 23.8
32 31.7 33.1
Bolt Size
Inches or #
Threads
Per Inch
Standard Dry Torque in Inch-Pounds
304
Stainless Steel
316
Stainless Steel
1/4 20 75.2 78.8
28 94.0 99.0
5/16 18 132 138
24 142 147
3/8 16 236 247
24 259 271
7/16 14 376 393
20 400 418
1/2 13 517 542
20 541 565
Bolt Size
Inches or #
Threads
Per Inch
Standard Dry Torque in Inch-Pounds
304
Stainless Steel
316
Stainless Steel
9/16 12 682 713
18 752 787
5/8 11 1110 1160
18 1244 1301
3/4 10 1530 1582
16 1490 1558
7/8 9 2328 2430
14 2318 2420
1 8 3440 3595
14 3110 3250
Bolt Size
Inches or #
Threads
Per Inch
Standard Dry Torque in Foot-Pounds
304
Stainless Steel
316
Stainless Steel
1 1/8 7 413 432
12 390 408
1 1/4 7 523 546
12 480 504
1 1/2 6 888 930
12 703 732

 

Most Common Types Stainless Steel round head bolts
Stainless Steel Round Head Square Neck Bolt
Stainless Steel Round Head Square Neck Bolt
Stainless Steel Flat Round Head Bolts
Stainless Steel Flat Round Head Bolts
SS Round Head Fin Neck Bolts
SS Round Head Fin Neck Bolts
Stainless Steel Slotted Round Head Bolts
Stainless Steel Slotted Round Head Bolts

 

Stock List of SS round head stove bolts
Spec
Finish
Length
Thread
Dia
A449
HDG
6"
10 UNC
3/4"
A449
HDG
8"
10 UNC
3/4"
A449
HDG
10"
10 UNC
3/4"
A449
HDG
12"
10 UNC
3/4"
A449
HDG
14"
10 UNC
3/4"
A449
HDG
16"
10 UNC
3/4"
A449
HDG
18"
10 UNC
3/4"
A449
HDG
6"
9 UNC
7/8"
A449
HDG
8"
9 UNC
7/8"
A449
HDG
10"
9 UNC
7/8"

 

Tensile Stress Areas And Threads Per Inch
Nominal Size, inch. Coarse Threads - UNC Fine Threads - UNF 8 Thread Series - 8UN
Threads / inch Stress AreaA, in2 Threads / inch Stress AreaA, in2 Threads / inch Stress AreaA, in2
1/4 20 0.0318 28 0.0364 -- --
5/16 18 0.0524 24 0.0580 -- --
3/18 16 0.0775 24 0.0878 -- --
7/16 14 0.1063 20 0.1187
1/2 13 0.1419 20 0.1599
9/16 12 0.1820 18 0.2030
5/8 11 0.2260 18 0.2560
3/4 10 0.3340 16 0.3730
7/8 9 0.4620 14 0.5090
1 8 0.6060 12 0.6630
1 1/8 7 0.7630 12 0.8560 8 0.790
1 1/4 7 0.9690 12 1.0730 8 1.000
1 3/8 6 1.1550 12 1.3150 8 1.233
1 1/2 6 1.4050 12 1.5810 8 1.49

 

5/16 round head bolts DIN Standards
Stainless Steel Type Finish Specification & Condition Dia (in.) 0.2% Yield Stress (ksi) Min. Tensile Requirement Shear Stress (ksi)
Tensile Strength (ksi) No Threads in Shear Plane Threads in Shear Plane
302
304
316		 Hot Finished Condition A (Annealed) in ASTM A276-71
Class 1 (solution treated) in ASTM A193-71		 all 30 75 15 10.5
302
304
316		 Cold Finished Condition A (Annealed) in ASTM A276-71 45 90 18 12.6
302
304
316		 Cold Finished Condition B (cold-worked) in ASTM A276-71
Class 2 (solution treated and strain hardened) in ASTM A193-71*		 100 125 25 17.5

 

Stainless Steel slotted round head bolts Composition Standard
Stainless Steel Grade C Mn Si P S Cr Mo Ni N Ti Fe
Stainless Steel 304 min. 18.0 8.0
max. 0.08 2.0 0.75 0.045 0.030 20.0 10.5 0.10
304L min. 18.0 8.0
max. 0.030 2.0 0.75 0.045 0.030 20.0 12.0 0.10
Stainless Steel 304H min. 0.04 18.0 8.0
max. 0.010 2.0 0.75 0.045 0.030 20.0 10.5
SS 310 0.015 max 2 max 0.015 max 0.020 max 0.015 max 24.00 26.00 0.10 max 19.00 21.00 54.7 min
Stainless Steel 310S 0.08 max 2 max 1.00 max 0.045 max 0.030 max 24.00 26.00 0.75 max 19.00 21.00 53.095 min
SS 310H 0.04 0.10 2 max 1.00 max 0.045 max 0.030 max 24.00 26.00 19.00 21.00 53.885 min
316 min. 16.0 2.03.0 10.0  
max. 0.035 2.0 0.75 0.045 0.030 18.0 14.0  
Stainless Steel 316L min. 16.0 2.03.0 10.0    
max. 0.035 2.0 0.75 0.045 0.030 18.0 14.0  
316TI 0.08 max 10.00 14.00 2.0 max 0.045 max 0.030 max 16.00 18.00 0.75 max 2.00 3.00
317 0.08 max 2 max 1 max 0.045 max 0.030 max 18.00 20.00 3.00 4.00 57.845 min
SS 317L 0.035 max 2.0 max 1.0 max 0.045 max 0.030 max 18.00 20.00 3.00 4.00 11.00 15.00 57.89 min
Stainless Steel 321 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 19.00 9.00 12.00 0.10 max 5(C+N) 0.70 max
SS 321H 0.04 0.10 2.0 max 1.0 max 0.045 max 0.030 max 17.00 19.00 9.00 12.00 0.10 max 4(C+N) 0.70 max
347/ 347H 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 20.00 9.0013.00
Stainless Steel 410 min. 11.5
max. 0.15 1.0 1.00 0.040 0.030 13.5 0.75
446 min. 23.0 0.10
max. 0.2 1.5 0.75 0.040 0.030 30.0 0.50 0.25
Stainless Steel 904L min. 19.0 4.00 23.00 0.10
max. 0.20 2.00 1.00 0.045 0.035 23.0 5.00 28.00 0.25

 

round head allen bolts Mechanical Properties Database
aterial Heat Temperure Tensile Strength Yield Strength Elongation %, Min
Treatment Min. Ksi (MPa), Min. Ksi (MPa), Min.
º F(º C)
Stainless Steel TP304 Solution 1900 (1040) 75(515) 30(205) 35
Stainless Steel TP304L Solution 1900 (1040) 70(485) 25(170) 35
Stainless Steel TP316 Solution 1900(1040) 75(515) 30(205) 35
Stainless Steel TP316L Solution 1900(1040) 70(485) 25(170) 35

 

Stainless Steel smooth round head bolts Equivalent Grades Table
Stainless Steel Type ASTM Equivalent Standard
UNS Grads (TP) EN / Din Afnor (NF) JIS
Austenitic Stainless Steel S30400 304 1.4301 Z 6 CN 18.09 SUS 304
  S30403 304L 1.4306 Z 2 CN 18.10 SUS 304L
  S31600 316 1.4401 Z 6 CND 17.11 SUS 316
  S31603 316L 1.4404 Z 2 CND 17.12 SUS 316L
  S31635 316Ti 1.4571 Z 2 CND 17.12 -
  S32100 321 1.4541 Z 6 CNT 18.10 SUS 321
  S34700 347 1.455 Z 6 CNNb 18.10 SUS 347
  S30409 304H 1.4948 Z 6 CN 19.10 SUS 304H
  S31609 316H 1.4919 Z 10 CND 18.10 SUS 316H
  S32109 321H 1.4941 Z 10 CND 18.10 SUS 321H
Ferritic Stainless Steel S40500 405 1.4002 Z 6 CAL 13 SUS 405
  S41000 410 1.4002 Z 12 C 13 SUS 410
  S43000 430 1.4016 Z 10 C 17 SUS 430

 

Popular head style of Stainless Steel large round head bolts

Popular head style of large round head bolts

 

Dive Style of Stainless Steel Round Head Nip Bolts

Dive Style of SS Round Head Nip Bolts

 

Documentation of SS round head toggle bolts
  • Commercial Invoice which includes HS Code
  • Packing List including net weight and gross weight, number of boxes, Marks and Numbers
  • Form A for the purposes of the Generalized System of Preferences (GSP)
  • Quality Assurance Plan (QAP)
  • Guarantee Letter
  • Heat Treatment Charts
  • Certificate of Origin legalized/attested by Chamber of Commerce or Embassy
  • Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
  • Test Certificates certifying NACE MR0103, NACE MR0175
  • Welding Procedure Specification/Procedure Qualification Record, WPS/PQR
  • Fumigation Certificates
  • Raw Material Test Reports
  • NABL approved Laboratory Test Reports
  • Material Traceability Records

 

round head structural bolts Markings
  • Heat Code
  • ASTM Specification
  • Nominal Diameter
  • Grade
  • Brinell Hardness Number
  • Manufacturer’s Name or Symbol

 

Stainless Steel round head allen bolts Thread Style

SS round head allen bolts Thread Style

 

SS Round Head Bolts for sale

Stainless steel round head bolts

round head square neck bolts

flat round head bolts

Stainless Steel round head fin neck bolts

Stainless Steel slotted round head bolts

rounded hex head bolts

stainless steel button head bolts

Stainless Steel round head fender bolts

round head toggle bolts

round head structural bolts

Stainless Steel large round head bolts

Stainless Steel hex socket round head bolts

slotted round head bolts

smooth round head bolts

Stainless Steel 5/16 round head bolts

metric round head square neck bolts

round head allen bolts

Stainless Steel round head stove bolts

 

 

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