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External Circlips DIN 471 Internal Circlips DIN 472 Heavy Duty External DIN 1460 E-clips D1500 (DIN 6799) Spring Tension Pins DIN 1481 (ISO 8752) Disc Springs DIN 2093 Ball-bearing Pre-load Disc Springs Heavy Duty DIN 6796 & Serrated Safety Washers Shims & Support Washers DIN 988 Split Cotter Pin DIN 94 (ISO1234) Calebs Kits

External Circlips DIN 471 Internal Circlips DIN 472 Heavy Duty External DIN 1460 E-clips D1500 (DIN 6799) Spring Tension Pins DIN 1481     (ISO 8752) Disc Springs DIN 2093 Ball-bearing Pre-load Disc Springs Heavy Duty DIN 6796 & Serrated     Safety Washers Shims & Support Washers DIN 988 Split Cotter Pin DIN 94 Calebs Kits Heavy Duty DIN 6796 & Serrated Safety Washers DIN 6796 Heavy Duty Locking Washer Heavy Duty Conical washers (also known as Heavy Duty Disc Springs or Heavy Duty Belleville Washers) are manufactured in accordance to DIN 6796 specification. Their ideal use is for bolted sections where they are put under the nut and/or bolt head to help prevent loosening. Due to high force experienced from these washers, it is recommended that bolts ranging from grade 8.8 to 10.9 be used. This type of washer should be used where there is minimal deflection and low number of cycles. For lower forces and greater deflections the standard DIN 2093 Disc Spring should be used. Serrated Safety Washers Using the same concept of the Disc Spring, the Serrated Safety Washer has the special feature of radial serrations on both surfaces. When tightened to near capacity these serrations bite into the mating surfaces, thus preventing the loosening of the screw due to vibration and other similar circumstances. Serrated Safety Washers offer a reduction in the outside dia thus corresponding with most screw head sizes, particulary hexagonal socket type screws. DIN 6796 Heavy Duty Locking Washer Approx force to flat is in Newtons. Standard Material: C60 - C75 Carbon Spring Steel or similar Standard Finish: Self finish Alternative Finishes: Phosphate and oil, Mechanical zinc plate, Deltatone    Part no Outside Dia (De) Inside Dia (Di) Thickness (t) Overall Height (lo) Approx Force to flat Weight per 1,000 pcs Bolt Size    HD52204 5.0 2.2 0.40 0.60 628 0.05 2.0    HD62705 6.0 2.7 0.50 0.72 946 0.09 2.5    HD73206 7.0 3.2 0.60 0.85 1,320 0.14 3.0    HD83708 8.0 3.7 0.80 1.06 2,410 0.25 3.5    HD9431 9.0 4.3 1.00 1.30 3,770 0.38 4.0    HD115312 11.0 5.3 1.20 1.55 5,480 0.69 5.0    HD146415 14.0 6.4 1.50 2.00 8,590 1.43 6.0    HD1774175 17.0 7.4 1.75 2.30 11,300 2.53 7.0    HD18842 18.0 8.4 2.00 2.60 14,900 3.13 8.0    HD2310525 23.0 10.5 2.50 3.20 22,100 6.45 10.0    HD29133 29.0 13.0 3.0 3.95 34,100 12.4 12.0    HD351535 35.0 15.0 3.5 4.65 46,000 21.6 14.0    HD39174 39.0 17.0 4.0 5.25 59,700 30.4 16.0    HD421945 42.0 19.0 4.5 5.8 74,400 38.9 18.0    HD45215 45.0 21.0 5.0 6.4 93,200 48.8 20.0    HD492355 49.0 23.0 5.5 7.05 113,700 63.5 22.0    HD56256 56.0 25.0 6.0 7.75 131,000 92.9 24.0    HD602865 60.0 28.0 6.5 8.35 154,000 113 27.0    HD70317 70.0 31.0 7.0 9.2 172,000 170 30.0 Serrated Safety Washers Note! Overall height dimension "Lo" is height in delivered condition before use. Upon compression setting may take place and therefore reduce the height. Material: Carbon Spring Steel Finish: Black & Oil Zinc plated parts available on request "S" Type - Light Duty    Code no Screw size mm O/Dia De I/Dia Di Thk T Overall height Lo Screw size inch    SSW3217035 1.6 3.2 1.7 0.35 0.6    SSW422035 2 4 2.2 0.35 0.6    SSW4527045 2.5 4.8 2.7 0.45 0.9    SSW5532045 3 5.5 3.2 0.45 0.9 1/8"    SSW637045 3.5 6 3.7 0.45 0.9    SSW74305 4 7 4.3 0.5 1 5/32"    SSW95306 5 9 5.3 0.6 1.1 3/16"    SSW106407 6 10 6.4 0.7 1.2    SSW956707 6.35 9.5 6.7 0.7 1.2 1/4"    SSW127407 7 12 7.4 0.7 1.3    SSW138408 8 13 8.4 0.8 1.4 5/16"    SSW161051 10 16 10.5 1 1.6 3/8"    SSW1591161 11.1 15.9 11.6 1 1.6 7/16"    SSW181311 12 18 13 1.1 1.7    SSW1913711 12.7 19 13.7 1.1 1.8 1/2"    SSW2215123 14 22 15 1.2 2    SSW241713 16 24 17 1.3 2.1 5/8"    SSW271915 18 27 19 1.5 2.3     SSW302015 19 30 20 1.5 2.4 3/4"     SSW302115 20 30 21 1.5 2.4     SSW332315 22 33 23 1.5 2.5 7/8"     SSW3625618 24 36 25.6 1.8 2.7     SSW38272 25.4 38 27 2 2.8 1"     SSW392862 27 39 28.6 2 2.9     SSW453162 30 45 31.6 2 3.2 1.1/8"     SSW543825 36 54 38 2.5 4 "VS" Type - Medium Duty    Code no Screw size mm O/Dia De I/Dia Di Thk T Overall height Lo Screw size inch    SSW9531M 5 9 5.3 1 1.3 3/16"     SSW10641M 6 10 6.4 1 1.4     SSW138412M 8 13 8.4 1.2 1.7 5/16"     SSW1610515M 10 16 10.5 1.5 2 3/8"     SSW181315M 12 18 13 1.5 2.1     SSW221515M 14 22 15 1.5 2.2     SSW24172M 16 24 17 2 2.6 5/8"     SSW27192M 18 27 19 2 2.7     SSW30212M 20 30 21 2 2.8     SSW33232M 22 33 23 2 2.9 7/8"     SSW3625625M 24 36 25.6 2.5 3.3     SSW3925625M 27 39 28.6 2.5 3.4     SSW4531625M 30 45 31.6 2.5 3.6 1.1/8 To view the data tables and diagrams on this page in a black and white printable format, please visit our Online Catalogue page.