Load Washers

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American Belleville Load Washers, also known as Heavy Duty Safety Washers, are designed for use in static bolting applications where requirements for higher axial loads than those of traditional Belleville Washers, are present. They are configured for optimal use with Grade 5 bolts, and manufactured in accordance with the specifications outlined in the European DIN 6796.

These load washers are not pre-set, and therefore are listed with two separate Overall Height (OH) specifications. First the “as-received” height, and then the expected overall height, once initially loaded to flat.

Available materials include:

  • High-carbon Steel Alloy AISI 1060-1075 (DIN 17221 or 17222)
  • AISI 6150 (50CrV4 / 51CrV4) Chrome Vanadium Steel (ASTM A506)
  • 301 Stainless Steel (ASTM A666)
  • 17/7PH Stainless Steel (ASTM A693)

Our material selection will accommodate working temperatures from -400 deg. F to 500 deg. F, various corrosive environments and magnetism requirements.

Additionally, several plating/finish options can achieve desired aesthetics and ensure proper resistance to environmental elements that would otherwise affect performance and longevity.

We will work closely with you to specify or design, and then manufacture the proper part for your application. Contact us online or call 440-721-8350.

Load Washers - Search
Item ID DIN Spec Bolt Size ID (Min) OD (Max) THK (Nom) Height as Received Height After Loading Deflection Flat Load
AB13-29-2.5 6796 12mm 13.000 29.000 2.500 3.300 2.950 0.450 10397
AB13-29-3 6796 12mm 13.000 29.000 3.000 3.950 3.430 0.430 17144
AB13-32-3.5 6796 12mm 13.000 32.000 3.500 4.290 3.940 0.440 21816
AB15-35-3 6796 14mm 15.000 35.000 3.000 4.000 3.580 0.580 15669
AB15-35-3.5 6796 14mm 15.000 35.000 3.500 4.650 4.040 0.540 22878
AB15-39-4 6796 14mm 15.000 39.000 4.000 5.000 4.600 0.600 30253
AB17-39-3.5 6796 16mm 17.000 39.000 3.500 4.700 4.110 0.610 21194
AB17-39-4 6796 16mm 17.000 39.000 4.000 5.250 4.580 0.580 29910
AB17-42-4.5 6796 16mm 17.000 42.000 4.500 5.690 5.080 0.580 36996
AB19-42-4.5 6796 18mm 19.000 42.000 4.500 5.800 5.080 0.580 37507
AB19-47-5 6796 18mm 19.000 47.000 5.000 6.200 5.640 0.640 43157
AB21-45-5 6796 20mm 21.000 45.000 5.000 6.400 5.600 0.600 46877
AB21-52-5.5 6796 20mm 21.000 52.000 5.500 7.260 6.250 0.750 55740
AB23-49-5.5 6796 22mm 23.000 49.000 5.500 7.050 6.150 0.650 56087
AB23-56-6 6796 22mm 23.000 56.000 6.000 7.900 6.780 0.780 65066
AB25-56-6 6796 24mm 25.000 56.000 6.000 7.750 6.770 0.770 66959
AB25-62-6.5 6796 24mm 25.000 62.000 6.500 8.510 7.390 0.890 76090
AB28-60-6.5 6796 27mm 28.000 60.000 6.500 8.350 7.300 0.800 75921
AB28-70-7 6796 27mm 28.000 70.000 7.000 9.170 8.050 1.050 88664
AB31-70-7 6796 30mm 31.000 70.000 7.000 9.200 8.000 1.000 85975
Item ID DIN Spec Bolt Size ID (Min) OD (Max) THK (Nom) Height as Received Height After Loading Deflection Flat Load
AB13-29-2.5 6796 12mm 0.512 1.140 0.100 0.130 0.116 0.016 2339
AB13-29-3 6796 12mm 0.512 1.140 0.120 0.156 0.135 0.015 3857
AB13-32-3.5 6796 12mm 0.512 1.260 0.138 0.169 0.155 0.017 4908
AB15-35-3 6796 14mm 0.591 1.380 0.118 0.157 0.141 0.023 3525
AB15-35-3.5 6796 14mm 0.591 1.380 0.138 0.183 0.159 0.021 5147
AB15-39-4 6796 14mm 0.591 1.530 0.157 0.197 0.181 0.024 6806
AB17-39-3.5 6796 16mm 0.670 1.530 0.138 0.185 0.162 0.024 4768
AB17-39-4 6796 16mm 0.670 1.530 0.160 0.207 0.180 0.020 6729
AB17-42-4.5 6796 16mm 0.670 1.650 0.177 0.224 0.200 0.023 8323
AB19-42-4.5 6796 18mm 0.748 1.650 0.177 0.228 0.200 0.023 8438
AB19-47-5 6796 18mm 0.748 1.850 0.197 0.244 0.222 0.025 9709
AB21-45-5 6796 20mm 0.827 1.770 0.200 0.252 0.220 0.020 10546
AB21-52-5.5 6796 20mm 0.827 2.050 0.216 0.286 0.246 0.030 12540
AB23-49-5.5 6796 22mm 0.910 1.930 0.220 0.278 0.242 0.022 12618
AB23-56-6 6796 22mm 0.910 2.200 0.236 0.311 0.267 0.031 14638
AB25-56-6 6796 24mm 0.984 2.200 0.240 0.305 0.267 0.027 15064
AB25-62-6.5 6796 24mm 0.984 2.440 0.256 0.335 0.291 0.035 17118
AB28-60-6.5 6796 27mm 1.100 2.360 0.260 0.329 0.287 0.027 17080
AB28-70-7 6796 27mm 1.100 2.750 0.275 0.361 0.317 0.042 19947
AB31-70-7 6796 30mm 1.220 2.750 0.280 0.362 0.315 0.035 19342
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