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Stainless Steel Square Nuts

Metric Stainless Steel Square Nuts Manufacturer in India


Stainless Steel Square Nuts

Stainless Steel Square Nuts

Square Weld Nuts

Square Weld Nuts


Table of Content

Standard Specifications of Stainless Steel Square Nuts

Grade 18-8 Stainless Steel, 4.8, 8.8, A2, A4, A2-70; A4-70; A4-80 Square Nuts
Stainless Steel Square Nuts 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

Stainless Steel Square Nuts 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
DIN standard DIN 934, DIN 982, DIN 985, DIN 936, DIN 929, DIN 1587, DIN 439, DIN 315
British standards BS 57
Length 3 mm to 200 mm
Stainless Steel Threads: Metric, Metric Fine, BSW, UNF, UNC, BA, BSF and BSCY (cycle) threads or as required
Standard:
  • ISO 4035
  • ISO 14585C ~DIN 7981C
  • DIN 7973C ~ISO 1483
  • DIN 7983C ~ISO 7051
  • ANSI B18.3.1M
  • ASME B18.6.3
  • GB/T5782, GB/T5783, GB5783

DIN, ISO, JIS, GB, IS, BS, ASTM and all International Standards
ANSI – American National Standards Institute
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.
Tolerance +/-0.01mm to +/-0.05mm
Head drive: Phillips, Slotted, Phillips/Slot, Six-Lobe, etc
Type Pan/ Round/ Oval/ countersunk/ Truss head
Head Pan head, flat head, oval head, Square head, phillips head
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
Production process Wire DraSquare, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing
Surface Coating:
  • Ptfe Coated Square Nuts
  • Hot Dipped Galvanizing Square Nuts
  • Phosphate Square Nuts
  • Teflon Square Nuts
  • Xylon Square Nuts
  • Zinc Phosphate Square Nuts
  • Manganese Phosphate
  • Zinc Electro Plating (Squareavalent or Trivalent Chrome)
  • ZAC (Zinc Alluminium Flake Coating)
  • Cadmium Square Nuts

All surface finishes can be supplied, including Zinc, Galvanised, Sherardized, Electroless Nickel, Dacromet, Geomet & PTFE.
Surface treatment
  • Polish
  • Passivation
  • Anodizing
  • Sand blasting
  • Heat-disposing
  • Hot-dip galvanizing
  • Rust preventive oil
  • Black oxide coating
  • 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 Square Nuts 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
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
Other available material
  • Stainless Steel Square Nuts: SUS201, SUS304, SUS316, SUS410
  • Brass Square Nuts: C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200CuZn37), C28000(CuZn40)
  • Bronze Square Nuts: C51000, C52100, C54400 etc
  • Aluminum Square Nuts: Al6061, Al6063 etc
  • Aluminum Alloy Square Nuts: Al6061, Al6063 etc
  • Titanium and Titanium Alloy Square Nuts: TAD, TA1-TA8, TB2, TC1-TC10
  • Alloy steel Square Nuts: SCM435, C10B21, C10B33
Uses & application Railway, Wind tower, Nuclear power, Automotive industry, Construction, Electronic industry

Basic Types Of Square Weld Nuts

Metric Stainless Steel Square Nuts

Metric Stainless Steel Square Nuts

Square Weld Nut

Square Weld Nut

Union Square Nuts

Union Square Nuts

M4 Flat Square Nuts

M4 Flat Square Nuts

A2 Stainless Steel Square Nuts

A2 Stainless Steel Square Nuts

Heavy Square Nut

Heavy Square Nut

Socket Set For Square Nuts

Socket Set For Square Nuts

SS Square Nuts

SS Square Nuts


Dimension of M4 flat square nuts

Nominal or
Basic Major
Diameter of
Thread
F
G
H
Width Across Flats
Width Across Corners
Length
Basic
Max
Min
Max
Min
Basic
Max
Min
1/4
0.2500
7/16
0.438
0.425
0.619
0.554
7/32
0.235
0.203
5/16
0.3125
9/16
0.562
0.547
0.795
0.721
17/64
0.283
0.249
3/8
0.3750
5/8
0.625
0.606
0.884
0.802
21/64
0.346
0.310
7/16
0.4375
3/4
0.750
0.728
1.061
0.970
3/8
0.394
0.356
1/2
0.5000
13/16
0.812
0.788
1.149
1.052
7/16
0.458
0.418
5/8
0.6250
1″
1.000
0.969
1.414
1.300
35/64
0.569
0.525
3/4
0.7500
1-1/8
1.125
1.088
1.591
1.464
21/32
0.680
0.632
7/8
0.8750
1-5/16
1.312
1.269
1.856
1.712
49/64
0.792
0.740
1″
1.0000
1-1/2
1.500
1.450
2.121
1.961
7/8
0.903
0.847
1-1/4
1.2500
1-7/8
1.875
1.812
2.652
2.458
1-3/32
1.126
1.062
1-1/2
1.5000
2-1/4
2.250
2.175
3.182
2.956
1-5/16
1.348
1.

Union Square Nuts Weight Chart

Size
Finished Hex
Heavy Hex
Finished Jam
Heavy Hex Jam
Square
Heavy Square
1/2″
3.750
6.540
2.620
4.000
5.780
7.870
5/8″
7.330
11.900
4.930
6.960
10.800
14.300
3/4″
11.900
19.300
7.700
11.000
15.400
23.500
7/8″
19.000
29.700
12.000
16.700
24.500
36.200
1″
28.300
42.500
17.600
23.500
36.300
51.500
1-1/8″
40.300
59.200
24.700
32.400
52.500
72.400
1-1/4″
54.300
78.600
36.100
45.800
70.600
95.500
1-3/8″
73.000
102.000
47.900
59.300
94.500
125.000
1-1/2″
94.300
131.000
60.900
74.800
122.000
161.000
1-5/8″
162.000
91.600
1-3/4″
151.000
204.000
100.000
114.000
1-7/8″
241.000
134.000
2″
224.000
299.000
140.000
165.000
2-1/4″
419.000
227.000
2-1/2″
564.000
332.000
2-3/4″
738.000
429.000
3″
950.000
545.000
3-1/4″
1194.000
651.000
3-1/2″
1526.000
851.000
3-3/4″
1812.000
1005.000
4″
2180.000
1200.000

Application of SS Square Nuts

  • Pharmaceutical Equipment
  • Power Generation
  • Spiral Welded tube for burner pipes and flues
  • Petrochemicals
  • Heat Exchangers
  • SSea Water Equipment
  • Aircraft Exhaust Manifolds
  • Specialty Chemicals
  • Off-Shore Oil Drilling Companies
  • Gas Processing
  • Pharmaceuticals