• +(91) 022-6659 5844
  • sales@jigneshsteel.com

ASTM A194 Grade 8 Self Locking Nuts manufacturer in India as per DIN 985/ ISO 7042 standard

Lock Nut is also known as locking nut, prevailing torque nut, self-locking nut, stiff nut or elastic stop nut it is a nut that resists loosening under torque and vibrations. Elastic stop nuts and prevailing torque nuts are of the particular type where some portion of the nut damages elastically to offer a locking action. Self Locking Nuts has an internal thread form the counterpart of a screw which ensures that the attached screw does not come loose. The number of elements is also reduced by the feature of the self-locking nut, After all no further securing elements are needed. Stainless Steel Lock Nut will not loosen, even under intense vibrations. They are different on each side which makes them very difficult to get off. There may come a situation when you need your lock nut detached. SS Lock Nut should be used when the screw joint contains of one or more soft materials. Due to high surface pressure it is difficult to achieve and to maintain a high level of clamp load because the soft material deforms. It is corrosion resistant alloy of iron, chromium and, in some cases, nickel and other metals. The advantageous properties of it are high corrosion resistance, cryogenic toughness, hot strength, ductility and hardness with low maintenance.

Stainless Steel Lock Nut

Stainless Steel Lock Nut

Stainless Steel Self Locking Nut

Stainless Steel Self Locking Nut

Hex Lock Nut

Hex Lock Nut

International standard and bespoke Stainless Steel 304 Lock Nut manufacturers in India, wide range of ASTM A194 8M Hex Lock Nut in our online inventory

Stainless Steel Lock Nut Specifications

Manufacturing M8 M10 M3 M6 M12 316 Stainless Steel Precision Lock nut as per ASTM F594 in UNF/ UNC threads

DIN Standard of Lock Nut DIN 934, DIN 982, DIN 985, DIN 936, DIN 929, DIN 1587, DIN 439, DIN 315
British standards of Lock Nut BS 57
Stainless Steel Lock Nut Size
  • Cold Forming process: M2-M24
  • Hot Forging process: M24-M100, 1-1/2” Dia, up to 1100mm lg
  • CNC Machining for M100 / 4” Dia, up to 1500mm lg

Manufacturing 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 Metric Stainless Steel Lock Nut

Lock Nut Size Metric
  • Dia: M10 - M110
  • Length: 12 - 1200MM
Lock Nut Size Inch
  • Dia: 1/2" - 4.0"
  • Length: 1/2" - 52"
SS Lock Nut British standards
  • BS6105 A2-70 Lock Nut
  • BS6105 A4-70 Lock Nut
  • BS6105 A4-80 Lock Nut
  • BS6105 A2-50 Lock Nut
Length 3 mm to 200 mm
Stainless Steel Lock Nut US Threads METRIC, BSW, BSF, Unified national coarse (UNC), Unified national fine (UNF), Unified national extra fine (UNEF), UNJC and UNJF threads, UNK threads, UNR threads, Constant-pitch threads
UTS - Unified Thread Standard UNC, UNF, NPT, UNS, UNEF, NPTF Lock Nut manufacturers in India
SS Lock Nut Dimensions ASME B 18.2.2
Metric Lock Nut Tolerances +/-0.01mm to +/-0.05mm
Head drive Phillips/Slot, Phillips, Slotted, Six-Lobe, etc
Lock Nut Surface Finish Zinc (yellow, blue, white, black), black oxide, Dacroment, anodizing, plated zinc-nickel, nickel plated, Geometry, Stainless steel: Passivated, Self-Colour, Hot Dip Galvanised (HDG), Sherardized, Bright Zinc Plated (BZP), Mechanically Applied coating and some special one like DACROMET
Finish/ Passivation of Stainless Steel Lock Nut Accordance to ASTM A380/A380M
Stainless Steel Lock Nut marking and Packing
  • Lock Nut Marking as per product specification
  • Wooden Pallet, Canton, Carton / Small Box or as required
  • Carton size : 36* 24 *16 CM & 36 *24 *12 CM  or as required
  • Pallet size: Standard Euro Pallet 110* 80 *90 CM
Stainless Steel Lock Nut Manufacturing process
  • Heading
  • Machining
  • Threading
  • Cold Heading
  • Heat treatment
  • Plating
  • Baking
  • Surface Plating
  • Inspection
  • Package
  • Shipping

 

Other Types
  • Nylock Nut
  • Flexloc Nuts
  • Reversible Locknuts
  • Conelock Nut
  • K-Lock nuts
  • Prevailing torque lock nuts
  • Top lock nuts
  • Two-way reversible lock nuts
  • Pin-Lock nuts
  • Poly Lock Nuts (Poly Nut)
Material Origin Stainless Steel Lock Nut are Western European. Eastern origin possible on request.
Common Lock Nut material grades
  • Stainless Steel Lock Nut: 18-8 Stainless Steel, 304, 316, 316L, 2205, 410, 431, 416, 440C, 18-8, 4.8, 8.8, A2, A4, A2-50, A2-70, A2-80, A4-50, A4-70, A4-80, A194 8M, A194 Grade 6, A194 7m, A194 Grade 8 Lock Nut
  • Carbon Steel Lock Nut : A194 Grade 1, A194 Grade 2, A194 Grade 2HM, A194 Grade 4, A194 Grade , A194 Grade 7m, A194 Grade 2H Lock Nut
  • Alloy steel Lock Nut: SCM435, C10B21, C10B33
  • High Tensile Lock Nut: 10.9 Grade, 12.9 Grade, 8.8 Grade Lock Nut
  • Brass Lock Nut: C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200CuZn37), C28000(CuZn40)
  • Bronze Lock Nut: C51000, C52100, C54400 etc
  • Aluminum Lock Nut: Al6061, Al6063 etc
  • Titanium Lock Nut: TAD, TA1-TA8, TB2, TC1-TC10
Stainless Steel Lock Nut Surface Coating
  • Ptfe Coated Lock Nut
  • Hot Dipped Galvanized
  • Phosphate
  • Teflon
  • Xylon
  • Zinc Phosphate
  • Manganese Phosphate
  • Zinc Electro Plating (Hexavalent or Trivalent Chrome)
  • ZAC (Zinc Alluminium Flake Coating)
  • Cadmium
  • ASTM A153 Zinc coating (hot dip)
  • ASTM B695 zinc coating
  • ASTM F1941 Electrodeposited coatings (Zinc plating).
  • ASTM F2329 Zinc coating, hot dip

All Lock Nut surface finishes can be supplied including Galvanised, Zinc, Sherardized, Dacromet, Electroless Nickel, Geomet & PTFE.

Lock Nut Surface treatment
  • Polish
  • Passivation
  • Black oxide coating
  • Anodizing
  • Sand blasting
  • Rust preventive oil
  • Heat-disposing
  • Hot dip galvanized
  • Electroplating color (blue, black zinc, white, Ni, Cr, copper, tin, silver)
Other Top Stainless Steel Lock Nut Manufacturers Omni, APL, Unbrako, Kundan, Deepak Fasteners, Sundaram Precision, Infasco, Caparo, EBY Fastener, SPAX® Screws, GKW Etc.
Why Jignesh Steel?
  • Based in India, established in Year 2008
  • Wide International network : Western Europe, Eastern Europe, Middle East, Southeast Asia, North America, and South America
  • Best Price in India compared to Stainless Steel Lock Nut manufacturers in China
  • Highly professional and technical team
  • Always final Inspection before shipment
  • Pre-production Lock Nut sample before mass production
  • High precision threads
MOQ 5 pieces
Preferred Lock Nut Drawing Formats JPEG, PDF, CAD, STP, IGS
Test Certificates provided by Stainless Steel Lock Nut manufacturers
  • Manufacturer Test Certificate (MTC) as per EN 10204 / 3.1,
  • Lock Nut Tensile testing to ISO 898-1
  • Hardness testing to ISO 6508-1
  • Suitability for preloading to EN 14399-2
  • Tri-Roll Thread Comparators
  • Lock Nut Charpy Impact testing in accordance with ISO 148-1
  • Suitability test for calibrated preload to EN 14399-10
  • Nut proof load testing to ISO 898-2
  • 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, Western Union, Paypal, L/C or Trade Assurance 30% deposit & balance before shipping
Port of Dispatch Mumbai or Kalamboli ports in Maharashtra state of India
Standard

IS, ANSI, ASTM, DIN, ISO, JIS, GB, ASME, BS, UNI, CSN, EU, IFI, PN, and all International Standards

  • ANSI B 18.2.4 2M
  • ANSI B 28.2.4 1M
  • ANSI - American National Standards Institute
  • GB/T5783, GB/T5782, GB5783
  • American ASME
  • Indian IS
  • International ISO
  • American SAE
  • German DIN
  • Spanish CSN
  • British BS
  • Italian UNI
  • Polish PN
  • European EU
Find our dealers & distributors of Stainless Steel Lock Nut Bengaluru, Mumbai, Jamshedpur, Abu Dhabi, Jakarta, Howrah, Pimpri-Chinchwad, Seoul, Lagos, Hyderabad, Janeiro, Vung Granada, Indore, Noida, Doha, Gurgaon, Shah Alam, Caracas, Montreal, Houston, Navi Mumbai, Tehran, Agra, Sharjah, Ranchi, Surat, Bhubaneswar, Pune, Muscat, Ahvaz, Kuwait, Baroda, Brisbane, Ernakulam, India, Panipat, Kuala Lumpur, Ahmedabad, Nashik, Courbevoie, Jaipur, Ludhiana, Singapore, Vadodara, Dubai, Gujarat, Port-of-Spain, Dammam, Santiago, Kanpur, Perth, Manama, Kochi, Mexico, Bogota, Patna, Tau, Calgary, Khobar, New Delhi, Istanbul, Mysuru, Sydney, Lucknow, Nagpur, Coimbatore, Rajkot, Thane, Karachi, Riyadh, Gimhae-si, Chennai, Melbourne, Ankara, Thiruvananthapuram, London, Kolkata, Dhaka, Vapi
Lock Nut Application and Uses Industrial, Wind tower, Railway, Nuclear power, Construction, Electronic, and Automotive indutries, these end users prefer to buy from Stainless Steel Lock Nut manufacturers in India
ISO - International Organization for Standardization

Stainless Steel Lock Nut Price List

DIN 980V High Tensile Stainless Steel stover lock nut in various material grades including 410/ 431/ 416/ 440C/ A2-70/ A4-70/ 18-8/ 304L and 316L

Products FOB Price US $
DIN 985 plain Metric 18-8 Stainless Steel hex nyloc insert lock nuts
US $0.02-5 / Piece
Bolt Base Stainless Steel Nyloc Domed Nut, Colored Brass
US $0.01-0.1 / Unit
Stainless Steel Nyloc Insert Locking Nuts
US $0.001-0.05 / Pieces
M6 M8 M10 M12 M16 Nylon Insert Nuts Stainless Steel, DIN982
US $0.01-0.5 / Piece
din982 din985 carbon steel galvanized nyloc nut, CS HDG Nyloc Nut
US $0.01-0.5 / Piece
Stainless Steel DIN982 Nyloc Insert Nuts
US $0.01-0.5 / Piece
high quality 304 stainless steel nyloc nut
US $600-1400 / Ton
Stainless Steel DIN985 Hex Nylon Lock Nuts
US $15.0 / Pieces
DIN985 M8 Stainless Steel Nylon Insert Hex Lock Nuts A2 Hexagon Nyloc Self Locking Nut
US $0.01-0.1 / Unit
Wheel Locking Self-locking Nuts, Din 982 985 Insert Nylon Lock Nut Stainless Steel Nuts, Nyloc Lock Nuts,
US $0.11-100 / Piece
DIN985 M2-Stainless Steel Nylon Insert Lock Nuts
US $0.02-0.5 / Piece
Din934 A2-70 M3 SS Nyloc Lock Hex Eye M6 Lifting Astm A194 Zinc Din 985 M12 Weld Din929 316 Stainless Steel Nut
US $0.001-10 / Piece
DIN 986 A2 Stainless Steel M8 Dome Nykic Nuts, Made in Taiwan
US $0.01-0.1 / Unit
DIN985 304 stainless steel lock nut
US $0.05-0.5 / Piece

Call us or send us an email to sales@jigneshsteel.com for more details.

Types of Lock Nut

Manufacturer and exporter of Stainless Steel NASM25027 Lock Nut as per national aerospace standard, view metric dimensions in mm and price list ex Mumbai

SS Lock Nut

SS Lock Nut

DIN 980V stover lock nut

DIN 980V stover lock nut

M8 Lock Nut

M8 Lock Nut

M10 Lock Nut

M10 Lock Nut

Precision Lock Nut

Precision Lock Nut

M3 Lock Nut

M3 Lock Nut

Specialized manufacturer of

Top lock nuts

Top lock nuts

K-Lock nuts

K-Lock nuts

Two-way reversible lock nuts

Two-way reversible lock nuts

Hex lock nuts nylon insert

Hex lock nuts nylon insert

Reversible Locknuts

Reversible Locknuts

Poly Nut

Poly Nut

Stainless Steel Lock Nut Dimensions in mm

DIN439 B Hex Locknuts

Diameter Pitch (mm) Depth of Nut (mm) Across Flats (mm)
M2 0.4 1.2 4.0
M2.5 0.45 1.6 5.0
M3 0.5 1.8 5.5
M4 0.7 2.2 7
M5 0.8 2.7 8
M6 1.0 3.2 10
M8 1.25 4.0 13
M10 1.5 5 17
M12 1.75 6 19
M14 2 7 22
M16 2 8 24
M18 2.5 9 27
M20 2.5 10 30
M22 2.5 11 32
M24 3.0 12 36
M27 3.0 13.5 41
M30 3.5 15 46
M33 3.5 16.5 50
M36 4 18 55
M39 4 19.5 60
M42 4.5 21 65
M45 4.5 22.5 70
M48 5 24 75
M52 5 26 80
M56 5.5 28 85
M60 5.5 30 90

SS Lock Nut Dimensions in inches

Top Lock Nuts Grade C

SS Lock Nut Dimensions in inches

Lock Nut Nominal Size in Inches T W B
Width Across Flats Overall Thickness Hex Height
Nom Max Min Max Min Min
1/4 7/16 0.4385 0.428 0.226 0.212 0.145
5/16 1/2 0.5020 0.489 0.273 0.258 0.166
3/8 9/16 0.5645 0.551 0.337 0.320 0.198
7/16 11/16 0.6895 0.675 0.385 0.365 0.223
1/2 3/4 0.7520 0.736 0.448 0.427 0.262
9/16 7/8 0.8770 0.861 0.496 0.473 0.286
5/8 15/16 0.9395 0.922 0.559 0.535 0.329
3/4 1 1/8 1.1270 1.088 0.665 0.617 0.382
7/8 1 5/16 1.3145 1.269 0.776 0.724 0.450
1 1 1/2 1.5020 1.450 0.887 0.831 0.513

Reversible Lock Nut dimensions

Reversible Lock Nut Dimensions

Nominal or Basic Major Diameter of Reversible Lock Nuts Thread F G H
Width Across Flats Width Across Corners Thickness
Basic Max Min Max Min Basic Max Min
8 0.1640 11/32 0.344 0.332 0.397 0.378 3/16 0.193 0.178
10 0.1900 3/8 0.375 0.362 0.433 0.413 13/64 0.203 0.187
1/4 0.2500 7/16 0.438 0.428 0.505 0.488 1/32 0.226 0.212
5/16 0.3125 1/2 0.500 0.489 0.577 0.557 17/64 0.273 0.258
3/8 0.3750 9/16 0.562 0.551 0.650 0.628 21/64 0.337 0.320
7/16 0.4375 11/16 0.688 0.675 0.794 0.768 3/8 0.385 0.365
1/2 0.5000 3/4 0.750 0.736 0.866 0.840 7/16 0.448 0.427
9/16 0.5625 7/8 0.875 0.861 1.010 0.982 31/64 0.496 0.473
5/8 0.6250 15/16 0.938 0.922 1.083 1.051 35/64 0.559 0.535
3/4 0.7500 1 1/8 1.125 1.088 1.299 1.24 41/64 0.665 0.617
7/8 0.8750 1 5/16 1.312 1.269 1.516 1.447 3/4 0.776 0.724
1 1.0000 1 1/2 1.500 1.450 1.732 1.653 55/64 0.887 0.831

Collar Lock Nut

Collar Lock Nut

Collar Lock Nuts Nominal Size in Inches T W H
Width Across Flats Overall Thickness Hex Height
Max Min Max Min Max Min
1 1/8 1.688 1.631 0.999 0.939 0.657 0.636
1 1/4 1.875 1.812 1.094 1.030 0.719 0.698
1 3/8 2.062 1.994 1.206 1.138 0.793 0.771
1 1/2 2.250 2.175 1.317 1.245 0.865 0.843
1 3/4 2.625 2.538 1.540 1.460 1.012 0.989
2 3.000 2.900 1.763 1.675 1.158 1.134

Flanged Top Lock Nut Grade G

Flanged Top Lock Nut Grade G

Flanged Top Lock Nut Nominal Size in Inches F B H A K
Width Across Flats Flange Diameter Overall Thickness Hex Height Flange Thickness
Nom Max Min Max Max Min Min Min
1/4 7/16 0.4385 0.428 0.56 0.300 0.265 0.14 0.04
5/16 1/2 0.5020 0.489 0.68 0.365 0.320 0.17 0.05
3/8 9/16 0.5645 0.551 0.81 0.425 0.404 0.20 0.06
7/16 11/16 0.6895 0.675 0.93 0.495 0.457 0.23 0.07
1/2 3/4 0.752 0.736 1.07 0.555 0.528 0.26 0.08
5/8 15/16 0.9395 0.922 1.33 0.69 0.646 0.32 0.10
3/4 1 1/8 1.127 1.088 1.585 0.825 0.742 0.38 0.11

Spin Lock Nuts

Spin Lock Nuts Dimensions

Spin Lock Nuts Nominal Size or Basic Major Diameter or Thread F G B H K J
Width Across Flats Width Across Corners Flange Diameter Nut Thickness Wrench Length Flange Thickness
6 0.1380 0.312 0.302 0.361 0.342 0.422 0.406 0.171 0.156 0.10 0.02
8 0.1640 0.344 0.334 0.397 0.381 0.469 0.452 0.203 0.187 0.13
10 0.1900 0.375 0.365 0.433 0.416 0.500 0.480 0.219 0.203 0.03
1/4 0.2500 0.438 0.428 0.505 0.488 0.594 0.574 0.236 0.222 0.14 0.04
5/16 0.3125 0.500 0.489 0.577 0.557 0.680 0.660 0.283 0.268 0.17
3/8 0.3750 0.562 0.551 0.650 0.628 0.750 0.728 0.347 0.330 0.23
7/16 0.4375 0.688 0.675 0.794 0.768 0.937 0.910 0.395 0.375 0.26
1/2 0.5000 0.750 0.736 0.866 0.840 1.031 1.000 0.458 0.437 0.31 0.05
5/8 0.6250 0.938 0.922 1.083 1.051 1.281 1.248 0.569 0.545 0.40
3/4 0.7500 1.125 0.1088 1.299 1.240 1.500 1.460 0.675 0.627 0.46 0.06

Nylon Insert Lock Nut dimensions

Nylon Insert Lock Nut Dimensions

Nylon Insert Lock Nuts Nominal Size or Basic Thread Diameter F H I G
Width Across Flats Thickness Side Height Width Across Corners
Basic Max Min Max Min Ref Ref
4 0.1120 1/4 0.251 0.243 0.153 0.133 0.081 0.268
5 0.1250 1/4 0.251 0.243 0.153 0.133 0.081 0.268
6 0.1380 5/16 0.313 0.305 1.880 0.168 0.103 0.339
8 0.1640 11/32 0.345 0.336 0.239 0.219 0.140 0.374
10 0.1900 3/8 0.376 0.367 0.249 0.229 0.140 0.410
1/4 0.2500 7/16 0.439 0.430 0.328 0.298 0.225 0.482
5/16 0.3125 1/2 0.502 0.492 0.359 0.290 0.250 0.552
3/8 0.3750 9/16 0.564 0.553 0.468 0.438 0.335 0.622
7/16 0.4375 11/16 0.627 0.616 0.468 0.438 0.324 0.698
1/2 0.5000 3/4 0.752 0.741 0.609 0.579 0.464 0.837
9/16 0.5625 7/8 0.877 0.865 0.656 0.626 0.469 0.978
5/8 0.6250 15/16 0.940 0.928 0.765 0.735 0.593 1.051
3/4 0.7500 1 1/8 1.064 1.052 0.890 0.860 0.742 1.191
7/8 0.8750 1 5/16 1.252 1.239 0.999 0.969 0.790 1.403
1 1.0000 1 1/2 1.440 1.427 1.078 1.016 0.825 1.615
1 1/8 1.1250 1 11/16 1.627 1.614 1.203 1.141 0.930 1.826
1 1/4 1.2500 1 7/8 1.815 1.801 1.422 1.360 1.125 2.038
1 1/2 1.5000 2 1/4 2.197 2.159 1.64 1.578 1.313 2.444

Lock Nut Grade Markings

Understanding Lock Nut Grade and Classification

Lock Nut Grade
Identification
Marking
Lock Nut Specification Lock Nut Material Nominal Size ub Inches Lock Nut Proof
Load Stress ksi
Hardness
Rockwell
Min Max
Marking
No Mark
ASTM A563
- Grade 0
Carbon
Steel
1/4 thru
1-1/2
69 B55 C32
ASTM A563
- Grade A
Carbon
Steel
1/4 thru
1-1/2
90 B68 C32
ASTM A563 - Grade B Carbon Steel 1/4 thru 1 120 B69 C32
over 1
thru 1-1/2
105
Marking ASTM A563
- Grade C
Carbon
Steel
May be Quenched and Tampered
1/4 thru 4 144 B78 C38
Marking ASTM A563
- Grade C3
Atmospheric
Corrosion Resistant Steel May be Quenched and Tampered
1/4 thru 4 144 B78 C38
Marking ASTM A563
- Grade D
Carbon
Steel
May be Quenched and Tampered
1/4 thru 4 150 B84 C38
Marking ASTM A563
- Grade DH
Carbon
Steel
Quenched and Tampered
1/4 thru 4 175 C24 C38
Marking ASTM A563
- Grade DH3
Atmospheric
Corrosion Resistant Steel,Quenched and Tampered
1/4 thru 4 175 C24 C38
Marking ASTM A194
- Grade 1
Carbon
Steel
1/4 thru 4 130 B70 -
Marking ASTM A194
- Grade 2
Medium
Carbon Steel
1/4 thru 4 150 159 352
Marking ASTM A194
- Grade 2H
Medium
Carbon
Steel, Quenched and Tempered
1/4 thru 4 175 C24 C38
Marking ASTM A194
- Grade 2HM
Medium
Carbon
Steel, Quenched and Tempered
1/4 thru 4 150 159 237
Marking ASTM A194
- Grade 4
Medium
Carbon
Alloy Steel, Quenched and Tempered
1/4 thru 4 175 C24 C38
Marking ASTM A194
- Grade 7
Medium
Carbon
Alloy Steel,Quenched and Tempered
1/4 thru 4 175 C24 C38
Marking ASTM A194
- Grade 7M
Medium
Carbon
Alloy Steel, Quenched and Tempered
1/4 thru 4 150 159 237

Stainless Steel Lock Nut Height

Size Diameter* Height
Hex Nut Machine Screw Nut Hex Nut Jam Nut Nylock Nut Machine Screw Nut
#0 - 5/32" - - - 3/64"
#1 - 5/32" - - - 3/64"
#2 - 3/16" - - 9/64" 1/16"
#3 - 3/16" - - 9/64" 1/16"
#4 - 1/4" - - 9/64" 3/32"
#6 - 5/16" - - 11/64" 7/64"
#8 - 11/32" - - 15/64" 1/8"
#10 - 3/8" - - 15/64" 1/8"
#12 - 7/16" - - 5/16" 5/32"
1/4" 7/16" 7/16" 7/32" 5/32" 5/16" 3/16"
5/16" 1/2" 9/16" 17/64" 3/16" 11/32" 7/32"
3/8" 9/16" 5/8" 21/64" 7/32" 29/64" 1/4"
7/16" 11/16" - 3/8" 1/4" 29/64" -
1/2" 3/4" - 7/16" 5/16" 19/32" -
9/16" 7/8" - 31/64" 5/16" 41/64" -
5/8" 15/16" - 35/64" 3/8" 3/4" -
3/4" 1-1/8" - 41/64" 27/64" 7/8" -
7/8" 1-5/16" - 3/4" 31/64" 63/64" -
1" 1-1/2" - 55/64" 35/64" 1-3/64" -
* This is the diameter across the flats. It is also the size of wrench to use.

Stainless Steel Lock Nut Torque Chart

Lock Nut Nominal Diameter
Thread Pitch
Width
Flats, S
Width
Corners
E
Property Classes 5 and 10 Lock Nut Property Class 9 Lock Nut Property Class Bearing Face
Diameter
Dw
Metala
Type
Top
Insert
All
Metal
Top
Insert
5 &
10 Lock Nut
9 Lock Nut
Thickness, M Wrenching Height, M1
Max Min Max Min Max Min Max Min Max Min Max Min Min Min Min
M3 × 0.5 5.50 5.32 6.35 6.01 3.10 2.65 4.50 3.90 3.10 2.65 4.50 3.90 1.4 1.4 4.6
M3.5 × 0.6 6.00 5.82 6.93 6.58 3.50 3.00 5.00 4.30 3.50 3.00 5.00 4.30 1.7 1.7 5.1
M4 × 0.7 7.00 6.78 8.08 7.66 4.00 3.50 6.00 5.30 4.00 3.50 6.00 5.30 1.9 1.9 5.9
M5 × 0.8 8.00 7.78 9.24 8.79 5.30 4.80 6.80 6.00 5.30 4.80 7.20 6.40 2.7 2.7 6.9
M6 × 1 10.00 9.78 11.55 11.05 5.90 5.40 8.00 7.20 6.70 5.40 8.50 7.70 3.0 3.0 8.9
M8 × 1.25 13.00 12.73 15.01 14.38 7.10 6.44 9.50 8.50 8.00 7.14 10.20 9.20 3.7 4.3 11.6
bM10 × 1.5 15.00 14.73 17.32 16.64 9.70 8.70 12.50 11.50 11.20 9.60 13.50 12.50 5.6 6.2 13.6
M10 × 1.5 16.00 15.73 18.48 17.77 9.00 8.04 11.90 10.90 10.50 8.94 12.80 11.80 4.8 5.6 14.6
M12 × 1.75 18.00 17.73 20.78 20.03 11.60 10.37 14.90 13.90 13.30 11.57 16.10 15.10 6.7 7.7 16.6
M14 × 2 21.00 20.67 24.25 23.35 13.20 12.10 17.00 15.80 15.40 13.40 18.30 17.10 7.8 8.9 19.6
M16 × 2 24.00 23.67 27.71 26.75 15.20 14.10 19.10 17.90 17.90 15.70 20.70 19.50 9.1 10.5 22.5
M20 × 2.5 30.00 29.16 34.64 32.95 19.00 16.90 22.80 21.50 21.80 19.00 25.10 23.80 10.9 12.7 27.7
M24 × 3 36.00 35.00 41.57 39.55 23.00 20.20 27.10 25.60 26.40 22.60 29.50 28.00 13.0 15.1 33.2
M30 × 3.5 46.00 45.00 53.12 50.85 26.90 24.30 32.60 30.60 31.80 27.30 35.60 33.60 15.7 18.2 42.7
M36 × 4 55.00 53.80 63.51 60.79 32.50 29.40 38.90 36.90 38.50 33.10 42.60 40.60 19.0 22.1 51.1

Stainless Steel Lock Nut Material and Grades

  • A4 Lock Nut
  • 310 Stainless Steel Lock Nut
  • ASTM A194 Grade 8m Lock Nut (316)
  • 304 Stainless Steel Lock Nut
  • A4-80 Lock Nut
  • 304H Stainless Steel Lock Nut
  • Hex jam nylon lock nuts
  • 17-4 PH Lock Nut
  • ASTM A194 Grade 8 Lock Nut (304)
  • 18-8 Stainless Steel Lock Nut
  • A2-70 Lock Nut
  • 316 Stainless Steel Lock Nut
  • Hex lock nuts nylon insert
  • K-Lock nuts
  • Prevailing torque lock nuts
  • Top lock nuts
  • Two-way reversible lock nuts
  • Pin-Lock nuts
  • Duplex 2205 Lock Nut
  • ASTM A194 Grade 6 Lock Nut (410)
  • 304L Stainless Steel Lock Nut
  • 904L Stainless Steel Lock Nut
  • 317L Stainless Steel Lock Nut
  • 410 Stainless Steel Lock Nut
  • A2 Lock Nut
  • 4.8 Lock Nut
  • ASTM A194 8C Lock Nut (347)
  • 316 Stainless Lock Nut
  • 8.8 Lock Nut
  • 317 Stainless Steel Lock Nut
  • 321 Stainless Steel Lock Nut
  • A4-70 Lock Nut
  • 18-8 Stainless Steel Lock Nut
  • 316L Stainless Steel Lock Nut
  • 347 Stainless Steel Lock Nut

Lock Nut Application

  • Nuclear Energy Sector
  • Oil & Gas Industries
  • Petroleum Industries
  • Defence Industry
  • Chemical Industry
  • Aerospace Industry

Locate Lock Nut manufacturers in your neighborhood countries

SS304 Stainless Steel Lock Nut Thailand, Czechia, Germany, Malaysia, UK
SS316 Hex Flange Nylon Lock Nut Type Hungary, Bangladesh, Finland, Malaysia, USA
Oem Black Stainless Steel Rear Hub Shaft Lock Nut Dubai, Dammam -KSA, Belgium, Philippines, Indonesia
M6 Galvanized Square Lock Nut Thailand, Qatar, France, Europe, Singapore
A2 A4 Stainless Steel Lock Nut Argentina, Oman, Malaysia, Hong Kong, UAE
DIN 980 Self Locking Nut Chile, Singapore, Iran, Indonesia, Italy, Austria
Stainless Steel 304 316 Hex Lock Nut Brazil, Kuwait, Saudi Arabia (KSA), South Africa
DIN985 stainless steel hex nylon insert lock nuts & nylon locking nut UAE, Singapore, Bahrain, South Africa, New Zealand
304 Stainless Steel flange nylock nut UK, Jakarta -Indonesia, Philippines, Nigeria, Australia
A2-70 flange lock nut Poland, Canada, Ellington -United States, UK
Stainless Steel A2 A4 Hexagon Head K Tooth Lock Canada, Vietnam, Singapore, Philippines, Malaysia
Stainless Steel Nylon Insert Din 6926 Hex Flange Lock Nuts Turkey, Norway, Malaysia, UAE, Jordan
304 stainless steel K-nut Cap Hex Lock Nut Russia, Malaysia, Morocco, Dubai, Netherlands
DIN 934 DIN985 Hex Lock Nut Malaysia, Taiwan, Los Alamos -Mexico, Philippines
M2 M3 M6 M8 M10 Stainless Steel 304 round nut lock Singapore, Malaysia, South Korea, NY 12203 (USA)
m13 m26 m50 m80 Stainless steel slotted Lock Nut Egypt, Spain, UK, Mexico, Vietnam
DIN985 Black Oxide Stainless Steel M3 M4 M5 M6 M8 M10 M12 Self Locking Nylon Insert Lock Nuts UAE, United Kingdom -UK, Malaysia, Greece, Europe
Stainless Steel DIN 982 985 Nylon Insert Lock Nuts Romania, Malaysia, Portugal, Japan, Europe
A2-70 A4-80 M16 M4 M8 Stainless Steel Square lock Nuts Sweden, Vietnam, Colombia, China, Peru, Denmark, Malaysia

Stainless Steel Lock Nut Testing Tool & Equipment

  • Micrometer
  • Smooth plug gauge
  • Thread gauge
  • Coordinate Measuring Machine
  • Roughness tester
  • Image measuring instrument
  • Routine inspection of calipers