Machinery's Handbook, 31st Edition
1710
Fasteners for Structural Applications Table 8. Dimensions for Hardened Beveled Washers with Slope or Taper in Thickness 1:6 ANSI/ASME B18.2.6-2019
TOLERANCES
TOLERANCES
T
T
A
A
L
L
L
Clipped Square Beveled L
Square Beveled
Inside Diameter A
Minimum Side Length L
Minimum Edge Distance E
Nominal Washer Size [Note (3)]
Tolerance
Thickness T
Basic
Plus
Minus
0.500 0.531 0.0313 0.625 0.688 0.0313 0.750 0.813 0.0313 0.875 0.938 0.0313 1.000 1.125 0.0313 1.125 1.250 0.0313 1.250 1.375 0.0313 1.375 1.500 0.0313 1.500 1.625 0.0313
0 0 0 0 0 0 0 0 0
1.750 1.750 1.750 1.750 1.750 2.250 2.250 2.250 2.250
0.313 0.313 0.313 0.313 0.313 0.313 0.313 0.313 0.313
0.438 0.547 0.656 0.766 0.875 0.984 1.094 1.203 1.313
1 ∕ 5 ∕ 3 ∕ 7 ∕
2 8 4 8
1
1 1 ∕ 1 1 ∕ 1 3 ∕ 1 1 ∕
8 4 8 2
General notes for Table 8 : (1) Dimensional Conformance : Beveled washers shall have the following characteristics inspected to ANSI/ASME B18.18-2017 to the inspection levels as follows: Width across corners, inspection level B; Visual, inspection level C. If verifiable in-process inspection is used, see Dimensional Characteristics on page 1709. (2) Nonclipped washers may be rectangular providing neither side dimension is less than L . (3) Nominal washer sizes are intended for use with comparable nominal bolt diameters. (4) Additional requirements are in Beveled Washers on page 1709. Identification Symbols: Grade and source marking and symbols shall conform to the requirements of ASTM F 436. The source marking is intended to identify the source accepting the responsibility for conformance to this and other applicable specifications. Quality Assurance: Unless otherwise specified, products shall be furnished in accor dance with ANSI/ASME B18.18 as noted in Dimensional Characteristics on page 1710. Dimensional Characteristics: Washers shall conform to the dimensions specified in Table 8 . The designated characteristics defined in Table 8 , Note (1) shall be inspected in accordance with ANSI/ASME B18.18. For nondesignated characteristics, the provisions of ANSI/ASME B18.18 shall apply. Should a nondesignated dimension be determined to have a variance, it shall be deemed conforming to this Standard if the user, who is the installer, accepts the variance based on fit, form, and function considerations. Where
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