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Authorized Distributor for:

SAE Flat Washers

SAE-Washers.jpg
S.A.E. Flat Washers were developed and specified by the Society of Automotive Engineers to meet the requirements of automotive manufacturer applications as boradly as possible. They are of smaller Outer Diameter and thinner guages or thickness than their counterpart bolt sizes of USS Flat Washers.

All listed sizes of SAE flatwashers are available in steel with either a plain or clear zinc finish. Galvanized washers are also available but not as a stock product and not in all sizes. SAE Flat Washers are available in 50 lb cartons, also known as 1/4 kegs.

ANSI Specifications allow a tolerance of plus or minus one gauge on nominal thickness of commercial washers.

For flat washers requiring non-standard dimensions, please see Flat Washers.


Basic Part Number Bolt Size Inner Diameter (ID) Outer Diameter (OD) Thickness (Th) Approx LBs per 1000 Approx Pcs per 50 lb Carton Approx Pcs per LB
WSAE0.06 #6 5/32 3/8 .036/.065 1.26 39,500 790
WSAE0.08 #8 3/16 7/16 .036/.065 1.7 29,500 585
WSAE0.10 #10 7/32 1/2 .036/.065 2.3 22,750 435
WSAE0.12 #12 1/4 9/16 .051/.080 3.4 14,700 280
WSAE0.25 1/4 9/32 5/8 .051/.080 4.5 11,100 222
WSAE0.31 5/16 11/32 11/16 .051/.080 5.2 9,750 192
WSAE0.37 3/8 13/32 13/16 .051/.080 7.2 7,000 140
WSAE0.43 7/16 15/32 59/64 .051/.080 9.5 5,500 105
WSAE0.50 1/2 17/32 1 1/16 .074/.121 18.3 2,800 55
WSAE0.56 9/16 19/32 1 5/32 .074/.121 23.4 2,250 43
WSAE0.62 5/8 21/32 1 5/16 .074/.121 27.7 1,850 36
WSAE0.75 3/4 13/16 1 15/32 .108/.160 47.4 1,050 21
WSAE0.87 7/8 15/16 1 3/4 .108/.160 63 775 16
WSAE1.00 1 1 1/16 2 .108/.160 83 585 12
WSAE1.12 1 1/8 1 1/4 2 1/4 .108/.160 109 460 9.2
WSAE1.25 1 1/4 1 3/8 2 1/2 .136/.192 160 335 6.3
WSAE1.37 1 3/8 1 1/2 2 3/4 .136/.213 190 275 5.25
WSAE1.50 1 1/2 1 5/8 3 .153/.213 240 230 4.25


SAE Flat Washer

APEX FASTENERS, Inc - 15858 Business Center Drive - Irwindale, CA 91706 USA
APEX Fasteners supplies standard and custom screws, nut retainers, shoulder screws, plastites and taptites, all types of rivets, spring steel fasteners and special stampings, sems screws in standard, fractional or metric to electronics, aviation and other OEM industries worldwide. ApexFasteners.com custom manufactures screw machine components for electronic enclosure hardware as well as cold forming and cold headed specials for assembly and production requirements.
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