A11-8 REVISED OCTOBER, 2012 © Copyright 2023. All rights reserved. No portion may be copied or reproduced in any manner. FASTENERS & HARDWARE SOSMETAL PRODUCTS INC. A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 NUTS GRADE 5 SAE (FINE) CASTLE HEX NUTS l Castle nuts have a cylindrical crown. l Used with locking pins. l Cleans cut slots. l Used as spindle lock nuts. Protected by BLACK OXIDE FINISH™ against rust & corrosion PART NO. WRENCH NUT SIZE USS THREAD SIZE HEIGHT QTY 1/4-28 503240 7/16 9/32 25 5/16-24 503241 1/2 21/64 25 3/8-24 503242 9/16 13/32 25 7/16-20 503243 11/16 29/64 25 1/2-20 503244 3/4 9/16 10 9/16-18 503245 7/8 39/64 10 5/8-18 503246 15/16 23/32 10 3/4-16 503247 1-1/8 13/16 10 7/8-14 503248 1-15/16 29/32 5 1-14 503249 1-1/2 1 5 Part No. 501649 78 pieces • 10 items 12061 steel tray Numbers in assortment 503240 503241 503242 503243 503244 503245 503246 503247 503248 503249 FLANGE NUTS l Specifically for use with Grade 8 Flange bolts & A193 B-7 studs & threaded rod. l See A12 for flange bolts. l Phosphate and oil finish. ‘‘GRADE G” HEX LOCK FLANGE NUTS HEX LOCK FLANGE NUTS † Black Oxide Finish * 3/16” Diameter l Flange style with serrated washer face. l Case hardened. l Lusterplated. SIZE PART PART NUMBER (USS) NUMBER (SAE) QTY 3/8 703174 703170 50 1/2 703175 703171 50 5/8 703176 703172 50 3/4 703177 703173 10 SIZE PART PART NUMBER (USS) NUMBER (SAE) QTY 10-24 720252* --- 50 1/4 50620 50624 50 5/16 50621 50625† 50 3/8 50622 50626 50 SIZE PART PART NUMBER (USS) NUMBER (SAE) QTY 7/16 50616 50627 25 1/2 50617 50628 25 5/8 50618 --- 25 3/4 50619 --- 10 ACORN CAP NUTS l USS (coarse) threads. l Dome cover for neat appearance and to prevent snagging. *3/16” diameter † Fine Thread SQUARE NUTS l USS (coarse) threads. Protected by LUSTERPLATETM against rust & corrosion Protected by LUSTERPLATETM against rust & corrosion SIZE PART WRENCH NUT NUMBER SIZE HEIGHT QTY 1/4-20 503230 7/16 7/32 100 5/16-18 503231 9/16 17/64 100 3/8-16 503232 5/8 21/64 50 7/16-14 503233 3/4 3/8 25 1/2-13 503234 13/16 7/16 25 5/8-11 503235 1 35/64 10 3/4-10 503236 1-1/8 21/32 10 7/8-9 503237 1-5/16 49/64 5 1-8 503238 1-1/2 7/8 5 SIZE PART WRENCH NUT NUMBER SIZE HEIGHT QTY 6-32 503200 5/16 9/32 100 8-32 503201 5/16 9/32 100 10-24* 503202 3/8 11/32 100 10-32*† 503203 3/8 11/32 100 1/4-20 503204 7/16 3/8 100 5/16-18 503205 9/16 7/16 50 3/8-16 503206 5/8 1/2 50 1/2-13 503207 3/4 9/16 25 Sizes: 1/4” through 1/2” Part No. 503025 68 pieces • 5 items • 12028 plastic tray Numbers in assortment 503230 503231 503232 503233 503234 Sizes: No. 8 through 5/16” Part No. 503009 115 pieces • 5 items 12034 plastic tray Numbers in assortment 503201 503202 503203 503204 503205 FORGED WING NUTS l USS (coarse) threads. l Nickel plated forged steel, twice as strong as die cast nuts. * 3/16” Diameter † Fine Thread SIZE PART NUMBER (USS) QTY 6-32 51140 50 8-32 51141 50 10-24* 51142 50 10-32*† 51136 50 1/4-20 51143 50 5/16-18 51144 25 SIZE PART NUMBER (USS) QTY 3/8-16 51145 25 7/16-14 51146 10 1/2-13 51137 10 5/8-11 51138 5 3/4-10 51139 5 -- --- - Sizes: No. 8 through 3/8” plus 2 metric sizes, 5 and 6mm Part No. 51104 61 pieces • 7 items 12035 plastic tray Numbers in assortment 51141 51142 51143 51144 51145 532100 553299
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