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

Class 8.8 Lock Washer and Grade 8.8 Flat Washer in manufacturer in India

High Tensile 8.8 Grade Round Washer is often referred to as the structural grade. It is the most common form of high tensile material which is used for making fasteners. Grade 8.8 Washer is a thin plate with a hole typically in the middle that is normally used to distribute the load of a threaded fastener, such as a bolt or nut. It often has an outer diameter about twice their inner diameter, but this can vary quite widely. It require high-quality bolted joints  hardened steel such as grade 8.8 to prevent the loss of pre-load due to brinelling after the torque is applied. It is not always necessary but it is common practice to use them anyway. Class 8.8 Lock Washer is designed to be tightened to a required torque beneath an ordinary fastener. They apply a spring tension that holds back the fastener from vibrating loose. They are usually fixed to the nut side of the fastener. It goes into the threaded fastener first followed by the flat washer. In this way the lock washer adds tension to the fastener assembly. Grade 8.8 Flat Washer is to increase the size of a screw's bearing surface area, and reduce the surface pressure applied on the fastened object. Looseness can result when the bearing surface sinks under the surface pressure, so it is used to reduce the surface pressure is very effective. 8.8 Grade Spring Washer has axial flexibility and are used to prevent fastening or loosening due to vibrations. It is placed under the nut to prevent loosening of the nut.

Grade 8.8 Washer

Grade 8.8 Washer

Class 8.8 Lock Washer

Class 8.8 Lock Washer

Grade 8.8 Flat Washer

Grade 8.8 Flat Washer

View M16 M20 8.8 Grade Spring Washer and 8.8 Galvanised Bolt Washer dimensions and price in Mumbai, India

Grade 8.8 Washer Specifications

Inhouse manufacturing facilities for Hardened BS 3692 Grade 8.8 Steel Punched Washer and 8.8 High Tensile Machined Washer in all sizes and dimensions

8.8 Grade Washer Size Metric
  • Dia: M10 - M110
  • Length: 12 - 1200MM
Grade 8.8 Washer Size Inch
  • Dia: 1/2" - 4.0"
  • Length: 1/2" - 52"
Standard Military Standards
Types of Grade 8.8 Washer Flat Washer, Spring Washer, Punched Washer, Machined Washer, Round Washer, Square Washer, Plain Washer, Lock Washer, Spherical Washer, Tab Washer, Fender Washer, Customized Washer, Dock Washer, Hexagonal Washer, Split Washer, Hex Washers, Ogee Washer, Tooth Lock Washer, Countersunk Washer, Dome Tooth Washer, Dome Washer
Material Origin Grade 8.8 Washer are Western European. Eastern origin possible on request.
8.8 Grade Spring washer
  • Belleville or conical washer
  • Dome spring washer
  • Wave spring washer
  • Finger spring washer
  • Crescent spring washer
Class 8.8 Lock washer
  • Split lock washer
  • External tooth lock washer
  • Internal tooth lock washer
Grade 8.8 Plain washer
  • Torque washer
  • Flat washer
  • Fender washer
  • Finishing or Countersunk washer
  • Shoulder washer
  • C-washer
Grade 8.8 Nut Bolt Surface Finish & Coating
  • Ptfe Coated BS 3692 grade 8.8 Washer
  • Hot Dipped Galvanized
  • Phosphate
  • Teflon
  • Bright Zinc Plated (BZP)
  • Zinc Phosphate (yellow, blue, white, black)
  • Manganese Phosphate
  • Self-Colour
  • ZAC (Zinc Alluminium Flake Coating)
  • Geometry
  • Dacroment
  • Black oxide
  • Cadmium
  • Xylon
  • Nickel plated
  • Plated zinc-nickel
  • Sherardized
  • Zinc Electro Plating (Hexavalent or Trivalent Chrome)
  • Hot Dip Galvanised (HDG)
Why Jignesh Steel?
  • An Indian manufacturer, 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 Grade 8.8 Washer manufacturers in China
  • Highly professional and technical team
  • Always final Inspection before shipment
  • Pre-production BS 4190 grade 8.8 washer sample before mass production
  • High precision threads
MOQ 5 pieces
Ask for Test Certificates from Grade 8.8 Washer manufacturers
  • Manufacturer Test Certificate (MTC) as per EN 10204 / 3.1,
  • 8.8 Grade washer Tensile testing to ISO 898-1
  • Hardness testing to ISO 6508-1
  • Suitability for preloading to EN 14399-2
  • Class 8.8 washer 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
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
Find our dealers & distributors of Grade 8.8 Washer Noida, Bhubaneswar, Kolkata, Dammam, Thiruvananthapuram, Pune, Manama, Patna, Mexico, Santiago, Khobar, Pimpri-Chinchwad, Calgary, Tau, Chennai, Gimhae-si, Doha, London, Navi Mumbai, Port-of-Spain, Abu Dhabi, Dhaka, Kochi, Lucknow, Vapi, Vung Granada, Surat, Gurgaon, Thane, Istanbul, Perth, Tehran, Dubai, Kanpur, Jamshedpur, Muscat, Mumbai, New Delhi, Vadodara, Jaipur, Singapore, Brisbane, Ludhiana, Karachi, Sharjah, Caracas, Shah Alam, Jakarta, Rajkot, Janeiro, Bengaluru, Baroda, Ahmedabad, Houston, Hyderabad, Seoul, Mysuru, Sydney, Howrah, Indore, Montreal, Nagpur, Ankara, India, Kuala Lumpur, Coimbatore, Ranchi, Nashik, Kuwait, Riyadh, Melbourne, Ernakulam, Ahvaz, Panipat, Gujarat, Lagos, Bangalore, Courbevoie, Agra, Bogota,
ISO - International Organization for Standardization

Class 8.8 Flat Washer Dimensions

Manufacturer and supplier of High Tensile 8.8 Grade Round Washer and Square Washer as per En 15048/ BS 4190 specification

ISO 7089 BS 3692 grade 8.8 Flat Washer dimensions in mm

Class 8.8 Flat Washer Dimensions

8.8 Grade Bolt Size USS SAE
OD (in.) ID (in.) Thickness OD (in.) ID (in.) Thickness
1/8 (#6) - - - 0.375 0.156 .036/.065
5/32 (#8) - - - 0.438 0.188 .036/.065
3/16 (#10) 0.560 0.250 .036/.065 0.500 0.220 .036/.065
7/32 (#12) - - - 0.562 0.250 .051/.080
1/4 (#14) 0.734 0.312 .051/.080 0.625 0.281 .051/.080
5/16 0.875 0.375 .064/.104 0.688 0.344 .051/.080
3/8 1.000 0.438 .064/.104 0.812 0.406 .051/.080
7/16 1.250 0.500 .064/.104 0.922 0.469 .051/.080
1/2 1.375 0.562 .086/.132 1.062 0.531 .074/.121
9/16 1.469 0.625 .086/.132 1.156 0.594 .074/.121
5/8 1.750 0.688 .108/.160 1.312 0.656 .074/.121
3/4 2.000 0.812 .122/.177 1.469 0.812 .108/.160
7/8 2.250 0.938 .136/.192 1.750 0.938 .108/.160
1 2.500 1.062 .136/.192 2.000 1.062 .108/.160
1 1/8 2.750 1.250 .136/.192 2.250 1.250 .108/.160
1 1/4 3.000 1.375 .136/.192 2.500 1.375 .136/.192
1 3/8 3.250 1.500 .153/.213 2.750 1.500 .136/.213
1 1/2 3.500 1.625 .153/.213 3.000 1.625 .153/.213
1 5/8 3.750 1.750 .153/.213 - - -
1 3/4 4.000 1.875 .153/.213 - - -
1 7/8 4.250 2.000 .153/.213 - - -
2 4.500 2.125 .153/.213 - - -
2 1/4 4.750 2.375 .193/.248 - - -
2 1/2 5.000 2.625 .210/.280 - - -
2 3/4 5.250 2.875 .228/.310 - - -
3 5.500 3.125 .249/.327 - - -

Grade 8.8 Washers Types

Manufacturer of Hsfg Grade 8.8 Fender Washer in India, complete range of Metric Grade 8.8 galvanised Tooth Lock Washer, Spherical Washer, Split and Countersunk Washers in our Mumbai based warehouse

BS 3692 grade 8.8 Flat Washer

BS 3692 grade 8.8 Flat Washer

Hsfg Grade 8.8 Tooth Lock Washer

Hsfg Grade 8.8 Tooth Lock Washer

8.8 Grade Fender Washer

8.8 Grade Fender Washer

Class 8.8 Curved Spring Washer

Class 8.8 Curved Spring Washer

Grade 8.8 Steel Split Lock Washer

Grade 8.8 Steel Split Lock Washer

BS 4190 grade 8.8 Square Washer

BS 4190 grade 8.8 Square Washer

High Tensile 8.8 Grade Star Washer

High Tensile 8.8 Grade Star Washer

En 15048 Grade 8.8 Wave Spring Washer

En 15048 Grade 8.8 Wave Spring Washer

Military Grade 8.8 Flat Washer Specifications

Washer Size Inner Diameter (ID) Outer Diameter (OD) Thickness
  Max - Min Max - Min Max - Min
#0-801 0.078" - 0.075" 0.187" - 0.185" 0.025" - 0.016"
#2-802 0.093" - 0.090" 0.250" - 0.200" 0.025" - 0.016"
#4-803 0.125" - 0.115" 0.250" - 0.230" 0.028" - 0.027"
#4-804 0.125" - 0.115" 0.312" - 0.302" 0.040" - 0.025"
#6-805 0.156" - 0.150" 0.312" - 0.302" 0.048" - 0.027"
#6-806 0.156" - 0.150" 0.375" - 0.365" 0.065" - 0.036"
#8-807 0.187" - 0.177" 0.375" - 0.365" 0.065" - 0.036"
#8-841 0.188" - 0.178" 0.438" - 0.428" 0.065" - 0.036"
#10-808 0.218" - 0.208" 0.437" - 0.427" 0.065" - 0.036"
#10-809 0.250" - 0.240" 0.562" - 0.556" 0.080" - 0.051"
#10-842 0.219" - 0.209" 0.500" - 0.495" 0.065" - 0.036"
1/4"-810 0.281" - 0.271" 0.625" - 0.615" 0.080" - 0.051"
1/4"-811 0.312" - 0.302" 0.750" - 0.730" 0.080" - 0.051"
5/16"-812 0.343" - 0.333" 0.687" - 0.677" 0.080" - 0.051"
5/16"-813 0.375" - 0.365" 0.875" - 0.865" 0.104" - 0.064"
3/8"-814 0.406" - 0.396" 0.812" - 0.802" 0.080" - 0.051"
3/8"-815 0.437" - 0.417" 1.000" - 0.950" 0.104" - 0.064"
7/16"-816 0.468" - 0.448" 0.921" - 0.901" 0.080" - 0.051"
7/16"-817 0.500" - 0.495" 1.250" - 1.150" 0.104" - 0.064"
1/2"-818 0.531" - 0.521" 1.062" - 1.000" 0.121" - 0.074"
1/2"-819 0.562" - 0.552" 1.375" - 1.325" 0.132" - 0.086"
5/8"-820 0.656" - 0.636" 1.312" - 1.302" 0.121" - 0.074"
5/8"-821 0.687" - 0.677" 1.750" - 1.650" 0.160" - 0.108"
3/4"-822 0.812" - 0.799" 1.500" - 1.450" 0.160" - 0.108"
3/4"-823 0.812" - 0.799" 2.000" - 1.900" 0.177" - 0.122"
7/8"-824 0.937" - 0.907" 1.750" - 1.650" 0.160" - 0.108"
7/8"-825 0.937" - 0.907" 2.250" - 2.150" 0.192" - 0.136"
1"-826 1.062" - 1.000" 2.000" - 1.900" 0.160" - 0.108"
1"-827 1.062" - 1.000" 2.500" - 2.400" 0.192" - 0.136"

Do you know what Jignesh Steel supply in Middle East, USA, Africa, and Far East Asia

Class 8.8 Lock Washer United Kingdom -UK, Chile, China, South Africa
Grade 8.8 Flat Washer UK, United Arab Emirates (UAE), Philippines, Bahrain
8.8 Grade Spring Washer Philippines, Netherlands, Malaysia, Philippines
M16 M20  Grade 8.8 Washer Europe, Egypt, Peru, Denmark, Greece, Sweden, Jakarta - Indonesia, Oman
M10 Grade 8.8 DIN125 Zinc Plated Flat Washer Spain, Australia, Malaysia, Hungary, Morocco, Germany
BS 3692 Grade 8.8 Steel Punched Washer Europe, Malaysia, Singapore, Portugal, USA
8.8 High Tensile Machined Washer Canada, Italy, Japan, Saudi Arabia (KSA)
High Tensile 8.8 Grade Round Washer Malaysia, Turkey, Colombia, South Africa
BS 4190 grade 8.8 Square Washer Mexico, Malaysia, Indonesia, Taiwan, Thailand
Hsfg Grade 8.8 Fender Washer Malaysia, UK, South Korea, New Zealand, Bangladesh
Metric Grade 8.8 galvanised Tooth Lock Washer Poland, Singapore, Romania, Jordan, Kuwait
Class 8.8 Spherical Washer Canada, Iran, Malaysia, Argentina, Singapore
Grade 8.8 Steel Split Washer Singapore, Norway, Los Alamos -Mexico, Finland
8.8 High Tensile Countersunk Washers Ellington -United States, Russia, NY 12203 (USA), Brazil
Hsfg Grade 8.8 Ogee Washer Singapore, Hong Kong, Dammam -KSA, UAE
8.8 Galvanised Dome Tooth Washer Malaysia, Dubai, Qatar, Vietnam, Nigeria
High Tensile 8.8 Grade Spring Washer Belgium, Malaysia, Austria, Czechia, UAE
Grade 8.8 DIn125 Black Oxide Flat Washer Thailand, UK, Malaysia, Vietnam, Indonesia
8.8 Galvanised Bolt Washer Malaysia, Philippines, Europe, France

Uses of Grade 8.8 Washer

  • Distribute the load of the threaded fastener in Offshore & Chemical Industry
  • Engineering & Aerospace Industry
  • Grade 8.8 Plain Washer for tightening connection
  • High Strength Grade 8.8 Flat Washer for Automotive industry
  • Large size Grade 8.8 Washer for Oil & Gas Industries
  • Metric Grade 8.8 Washer for Power Generation
  • Grade 8.8 Washer suitable for Off-Shore Oil Drilling

BS 3692 grade 8.8 Washer Testing Tool & Equipment

  • Coordinate Measuring Machine
  • Image measuring instrument
  • Routine inspection of calipers
  • Roughness tester used to test the surface finish of a Grade 8.8 Flat Washer
  • Micrometer for accurate measurement of Grade 8.8 Washer
  • Thread gauge and Smooth plug gauge used to check Grade 8.8 Washer quickly

Grade 8.8 Steel Washer Sizes

BS 3692 grade 8.8 SAE Flat Washers
Size Inside Diameter Outside Diameter Thickness
#2 3/32" 1/4" .020"
#4 1/8" 5/16" 1/32"
#6 5/32" 3/8" 3/64"
#8 3/16" 7/16" 3/64"
#10 7/32" 1/2" 3/64"
1/4 9/32" 5/8" 1/16"
5/16 11/32" 11/16" 1/16"
3/8 13/32" 13/16" 1/16"
7/16 15/32" 59/64" 1/16"
1/2 17/32" 1-1/16" 3/32"
9/16 19/32" 1-3/16" 3/32"
5/8 21/32" 1-5/16" 3/32"
3/4 13/16" 1-1/2" 9/64"
7/8 15/16" 1-3/4" 9/64"
1" 1-1/16" 2" 9/64"
1-1/8 1-3/16" 2-1/4" 9/64"
1-1/4 1-5/16" 2-1/2" 5/32"
1-1/2 1-7/16" 3" 3/16"
1-5/8 1-3/4" 3-3/4" 3/16"
1-3/4 1-7/8" 4" 3/16"
2 2-1/8" 4-1/2" 3/16"

Chemical Composition of BS 3692 grade 8.8 Washer

Washer Grade Material and heat treatment Chemical composition (analysis on the product) % °C Min hardening temperature
C P S B
minimum max max max max
8.8 Alloy/ Carbon steel (B, Mn, Cr), quenched and tempered 0,15(3) 0,40 0,025 0,025 0,003 425
Quenched and tempered carbon steel washer 0,25 0,55 0,025 0,025
Quenched and tempered alloy steel washer 0,20 0,55 0,025 0,025

Mechanical Properties of 8.8 Grade Washer

Characteristics Strength class
8.8
d≤16mm
8.8
d>16mm
Tensile Stress
Rm (MPa)
nom 800 800
minimum 800 830
Yield Stress Rm (MPa)
ReL up to 6.8 - Rp0,2 from 8.8
nom 640 640
minimum 640 660
Elongation after fracture, a% minimum 12 12
Necking Z%   52 52
Vickers hardness (HV)
F ≥ 98 N
minimum 250 255
max 320 335
Brinell hardness (HB) of 8.8 washers
F = 30D2
minimum 238 242
max 304 318
Rockwell hardness
HRB up to 6.8 - HRC from 8.8
minimum 22 23
max 32 34
Resilience KV (J) – 20°C(1) minimum 27 27

Grade 8.8 Washer Price List

Products FOB Price US $
Grade 8.8 Flat Washer High Strength , DIn125 Black Oxide US $0.01-$2.50/ Piece
Carbon Steel Grade 8.8 Nickel Plated Flat Washer US $0.05-$0.50/ Piece
High Strength Carbon Steel Washer Din6916 Hv Grade 8.8 Black Washer US $0.02-$0.03/ Piece
ASME B18.22.1 Flat USS/ SAE Grade 8.8 Washer US $0.01-$0.02/ Piece
M16 M12 DIn125 grade 8.8 hot dip galvanized flat washer US $0.01-$2.50/ Piece
Zinc Plated Carbon Steel Grade 8.8 Spring Lock clip Washer M10 US $0.01-$0.03/ Piece
DIN 125 A ISO 7089 electric galvanized Grade 8.8 carbon steel metal 80hv 100hv 140hv 300hv 350hv flat washer US $0.01-$0.05/ Piece
m10 shim grade 8.8 flat washer, DIN 988 standard US $0.01-$0.08/ Piece
Carbon Steel Grade 4.8 8.8 Flat Washer Black Color US $0.01-$0.90/ Piece
Customized low carbon steel Grade 8.8 curved flat washer US $0.04-$0.05/ Piece
Din 436 M10 m4 m6 Grade 8.8 Galvanized Carbon Steel Flat Square Washer US $0.01-$0.04/ Piece
8.8 Grade Heavy Duty Steel Split Washers Zinc DIN 7980 US $0.01-$0.08/ Piece

Call us or send us an email to sales@jigneshsteel.com for more details. Always compare our price with other Grade 8.8 Washer manufacturers in India or China