We endeavor to be a full service supplier and manufacturer in the diameter range from M5 to M20 with a maximum part length of 300mm. We have experience in various grades of steel right from 8.8 to 12.9 and also special material like Stainless steel and Boron Steel. We manufacture a range of high tensile washers for precision-driven sectors like Automotive, Wind Energy, Aviation, Aerospace, Farm Equipment, Infrastructure and Defence.
These washer tensile specifications are 10,000 psi higher than industry standard – while maintaining the core hardness range. It is highly appreciated for its cost effective and wear & tear resistant features. Hardened and tempered washers to be used with these bolts shall conform to the requirements of IS : 6649-1985 ‘Hardened and tempered washers for high strength structural bolts and nuts
Types Of High Tensile Washers:
ROUND, SQUARE, FLAT, ID HEX, STAR LOCK, WAVE WASHER, PICOT WASHER, FRICTION WASHER, PLATE WASHER, TENSION DISC WASHER.
High Tensile Washers
ASTM A193 / A194 High Tensile Washers Specification
Washers – Flat, Spring, Taper, Square, Clipped, Special thickness DTI Washer
Size:
Normal Dia : ¼” to 4″ 6-100 mm
Length : As Specified by user or Upto any Length.
Specification / Standard:
DIN / ASME / BS / BS EN ISO /ASTM
Material:
Carbon Steel, Mild Steel, Alloy Steel, Ferritic & Austenitic Stainless Steel
Surface Finish:
Plain,Zinc Plated , Hot Dip Galvanized, P.T.F.E. Coated
Product name | High Tensile Washers |
---|---|
Grades | High Tensile Washers Grade 8.8 High Tensile Washers Grade 12.9 High Tensile Washers Grade 10.9 |
Standard | IS / BS / BSW / DIN / ASME / ASTM, ISO 4017, DIN931, GB5783, DIN, ASTM, ANSI, JIS, EN, AS |
DIN Standard | B.S. DIN933 DIN931 DIN934 DIN912 DIN603 DIN6923 |
Surface treatment | Passivation /plain |
Size | M2 – M100 |
Diameter | M3-M60 |
Length | 6mm-500mm |
Head | Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc |
Neck type | Hex, Square, Triangular, Oval & Knurled etc |
Drive type | Phil, Slotted, Hex socket, Torx & square slot etc |
Material |
|
Application | Wind tower, Nuclear power, Railway, Automotive industry, Railway, Construction, Electronic industry |
Dimensions | ASME B18.6.3 **Exception: screws 6 inches and shorter are fully threaded. |
Thread Requirements | ASME B1.1, UNC & UNF, Class 2A (Fastenal will inspect and accept parts with a 1A no-go gauge) |
Finish | Per ASTM A380/A380M |
Finishing | Zinc Plated (Yellow, White, Blue, Black), Passivated, Hop Dip Galvanized (HDG) phosphorization, Black Oxide, Geomet, Dacroment, Sandblast and Anodize, Chromate, Electro Painting, Black Anodize, Chrome plated, Nickel plated, Zinc-Nickel plated, Brass Plated, Tin Plated, Black Plated, Copper Plated, Gold Plated, Salt fog test |
Stock Products | Stainless steel: All DIN, GB Standard and part ASNI standard High Tensile Washers, Example: ISO7380, DIN7981, DIN7982, DIN916, DIN913, DIN7985, DIN912 |
Production technology | Cold Forged |
Manufacturing Process | Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing |
MOQ | 10 pieces |
Delivery time | Regular product is about 7-15 days, custom product will according to special requirement |
Others | OEM, ODM, ±0.03MM tolerance |
Surface treatment |
|
Coatings | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
Tolerance | +/-0.01mm to +/-0.05mm |
Samples | Yes |
Production Capacity | 2,700,000 pieces per month |
Payment Terms | T/T, Paypal, Western Union, L/C or Trade Assurance 30% deposit & balance before shipping |
Specialized in | High Tensile Washers ROUND, SQUARE, FLAT, ID HEX, STAR LOCK, WAVE WASHER, PICOT WASHER, FRICTION WASHER, PLATE WASHER, TENSION DISC WASHER |
Hardened and Tempered Washers To Is 6649-1985
DIA | M16 | M20 | M22 | M24 | M27 | M30 | M36 |
HARDNESS FOR PL. WASHER | 35 TO 45 HRC | ||||||
Hardness for Hot Dip Galvd washer | 26 HRC | ||||||
Outer Dia (Max) d2 | 34 | 42 | 44 | 50 | 56 | 60 | 72 |
Inner Dia (Min) d1 | 18 | 22 | 24 | 26 | 30 | 33 | 39 |
Thickness (S) | 3.1 TO 4.6 | ||||||
Tolerance for OD Minus(-) | 1.6 | 1.9 | |||||
Tolerance for ID Plus(+) | 0.43 | 0.52 | 0.62 |
Hardened and Tempered Washers To Din 6916
DIA | M12 | M16 | M20 | M22 | M24 | M27 | M30 | M36 |
Weight in Kgs for 100 nos | 0.703 | 1.46 | 1.96 | 2.43 | 3.06 | 5.02 | 6.32 | 11.50 |
Outer Dia (Max) d2 | 24 | 30 | 37 | 39 | 44 | 50 | 56 | 66 |
Inner Dia (Min) d1 | 13 | 17 | 21 | 23 | 25 | 28 | 31 | 37 |
Thickness (S) | 3 | 4 | 4 | 4 | 4 | 5 | 5 | 6 |
Tolerance for OD Minus(-) | 0.52 | 0.62 | 1 | 1.20 | ||||
Tolerance for ID Plus(+) | 0.27 | 0.33 | 0.52 | 0.62 | ||||
Tolerance for thickness + or – | 0.30 | 0.60 |