Flat Washers • Material: Cold Rolled Low Carbon Steel, 303 Stainless • Finish: Black Oxide • Heat Treat: Carbon Nitride to 60 • Flat and parallel within .005" (0.13mm) • Material: High Carbon Steel • Finish: Black Oxide • Heat Treat: Rc 40-45 (Through Hardened) • Flat & Parallel within .005" (.01mm) Heavy Duty Flat Washers Jergens Feature: Made from high-carbon through- hardened steel which makes them up to 50% stronger than standard heavy duty washers. Also more fracture resistant under heavy loads. Part Number A B C Bolt Size Wt. (lbs) 10 Pcs. 31901 1/2 13/64 3/32 3/16 .04 31902* 5/8 9/32 1/8 1/4 .05 31903* 3/4 11/32 1/8 5/16 .10 31904* 7/8 13/32 1/8 3/8 .21 31905* 1 1/8 17/32 1/8 1/2 .42 31906* 1 3/8 21/32 1/8 5/8 .63 31907* 1 5/8 25/32 5/32 3/4 1.10 31908* 1 3/4 29/32 5/32 7/8 1.20 31909* 2 1 1/32 3/16 1 1.70 31910 2 1/2 1 9/32 9/32 1 1/4 2.20 *Conforms to TCMA Part Number A B C Bolt Size Wt. (lbs) 10 Pcs. 31967 5/8 9/32 3/16 1/4 0.72 31968 3/4 11/32 3/16 5/16 0.79 31969 7/8 13/32 3/16 3/8 0.87 31960 1 1/2 17/32 7/32 1/2 1.00 31961 1 1/2 21/32 7/32 5/8 0.88 31962 1 7/8 25/32 1/4 3/4 1.61 31963 2 1/8 29/32 1/4 7/8 2.31 31964 2 1/2 1 1/16 1/4 1 3.56 31965 2 1/2 1 5/16 1/4 1 1/4 3.98 31966 2 3/4 1 9/16 1/4 1 1/2 4.20 Stainless Steel Part Number A B C Bolt Size 32001 7/16 .196 5/64 3/16 32002 5/8 17/64 3/32 1/4 32003 11/16 11/32 1/8 5/16 32004 7/8 25/64 1/8 3/8 32005 1 1/8 17/32 1/8 1/2 32006 1 1/4 21/32 1/8 5/8 32007 1 1/2 25/32 5/32 3/4 Metric Dimensions Part Number A B C Bolt Size Wt. (kg) 10 Pcs. 31961 38 17 5.5 16 0.40 31962 48 20 6.5 18 0.73 31963 54 23 6.5 20 1.05 31964 64 27 6.5 24 1.62 WORKHOLDING COMPONENTS workholding solutions WORKHOLDING COMPONENTS Jergens, Inc. | 15700 S. Waterloo Road | Cleveland, Ohio 44110-3898 USA 288
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