Hex 1/4 - 5/16 (a screw if with washer face) Description AMK Finish OEM Part # Origin AMK Part # CLICK FOR PRICING 1/4-20 X 1/2 GR4 HX BOLT "H" ZC. 2 pk .0002 Zinc & Wax (MQB) B-15139 1/4-20 X 9/16 GR2 HX BOLT "TR". 2 pk Phosphate & Oil (MTW) B-15140 1/4-20 X 9/16 HX BOLT "RBW" SS. 8 pk 100% Stainless Steel (MXZ) B-10133 1/4-20 X 9/16 HX BOLT "TR" SS. 8 pk 100% Stainless Steel (MND) B-10134 1/4-20 X 9/16 HX BOLT WIDE "TR" SS. 8 pk 100% Stainless Steel (MXO) B-10135 1/4-20 X 5/8 GR5 HX BOLT "P" ZC. 8 pk .0002 Zinc & Wax (LNH) 304632-S8, 180018-S8 B-10131 1/4-20 X 5/8 GR8 HX BOLT "n" PHOS. 4 pk Phosphate & Oil (PBG) B-15141 1/4-20 X 3/4 GR5 BOLT "RBW" PHOS. 6 pk Phosphate & Oil (BDS) 304646-S2, 9419004, 179795 (s) B-11800 1/4-20 X 3/4 GR5 BOLT "RBW" ZC. 6 pk .0002 Zinc & Wax (BDS) 304646-S8, 180020 (s8) B-11841 1/4-20 X 3/4 SMOOTH-TOP BOLT SS. 4 pk 100% Stainless Steel (LGS) B-11351 1/4-20 X 7/8 SMOOTH-TOP BOLT SS. 4 pk 100% Stainless Steel (LHM) B-10132 1/4-20 X 2 1/4 GR8 HX BOLT PHOS. 2 pk Phosphate & Oil (LLS) B-15142 1/4-28 X 5/8 GR8 HX BOLT PLAIN. 4 pk Plain Finish (ONG) B-15143 5/16-18 X 1/2 GR5 HX BOLT "C" PHOS. 4 pk Phosphate & Oil (MOB) 9419029 B-15144 5/16-18 X 5/8 GR2 SMOOTH-TOP HX BOLT PHOS. 4 pk Phosphate & Oil (LSK) B-15145 5/16-18 X 5/8 GR5 HX BOLT .150/.163 TK HEAD. 2 pk .0002 Zinc & Wax (OAY) 3951572 B-15146 5/16-18 X 3/4 SMOOTH-TOP HX BOLT PHOS. 4 pk Phosphate & Oil (LUE) B-15147 5/16-18 X 13/16 GR5 HX BOLT PLAIN. 6 pk Plain Finish (KZJ) 350329-S2 B-13355 5/16-18 X 7/8 GR5 HX BOLT "RBW" PHOS. 4 pk Phosphate & Oil (TT~) 304664-S2, 9418991, 179817 (s) B-13479 5/16-18 X 7/8 GR5 HX BOLT "RBW" ZC. 4 pk .0002 Zinc & Wax (TT~), 304664-S8, 180078 B-12626 5/16-18 X 1.0 SMOOTH-TOP BOLT LP SS. 4 pk 100% Stainless Steel (LGR) B-10172 5/16-18 X 1 1/8 GR5 HX BOLT "H" PHOS. 4 pk Phosphate & Oil (KDH) 181089 (Chry) B-10061 5/16-18 X 1 1/8 GR5 HX BOLT "DOGBONE" ZC. 4 pk .0002 Zinc & Wax (OMV) 180080 (Chry) B-13243 5/16-18 X 1 1/4 GR5 HX BOLT "P" CAD. 4 pk .0002" Cadmium & Wax (MLP) B-15148 5/16-18 X 1 1/4 HX BOLT SS. 4 pk 100% Stainless Steel (LVL) 391757-S B-10171 5/16-18 X 1 1/4 HX BOLT SS. 4 pk 100% Stainless Steel (MBV) B-10298 5/16-18 X 1 1/2 GR5 HX BOLT "P" PHOS. 4 pk Phosphate & Oil (HIG) 304758-S2, 9419034 B-12631 5/16-18 X 1 5/16 GR5 HX BOLT "TR" PHOS. 4 pk Phosphate & Oil (KLK) 179821 (sim) B-12629 5/16-18 X 1 5/8 GR2 HX BOLT "TR" ZC. 2 pk .0002 Zinc & Wax (MLR) B-15149 5/16-18 X 1 5/8 GR5 HX BOLT "LE" PHOS. 2 pk Phosphate & Oil (LWP) B-15150 5/16-18 X 1 5/8 GR5 HX BOLT "LE" PHOS w NYL. 2 pk Phosphate & Nylon Lock (LWP) 382133-S B-15151 5/16-18 X 1 5/8 SMOOTH-TOP BOLT PT CHROME. 2 pk Chrome (UK~) 379390-S13 B-12632 5/16-18 X 1 3/4 HX BOLT "WB" PHOS PELLET. 2 pk Phosphate & Nylon Lock (LJE) B-15152 5/16-18 X 1 13/16 GR5 HX BOLT "H" PHOS. 1 pk Phosphate & Oil (OMJ) 181095 (Chry) B-11442 5/16-18 X 2.0 GR5 HX BOLT "RBW" PHOS. 2 pk Phosphate & Oil (UU~) 304828-S2 B-12025 5/16-18 X 2 1/8 GR5 HX BOLT "A" PHOS. 4 pk Phosphate & Oil (LJQ) B-11692 5/16-18 X 2 1/4 GR5 FT HX BOLT PHOS. 2 pk Phosphate & Oil (KEQ) 381904-S2 B-12633 5/16-18 X 3.0 GR2 SMOOTH-TOP HX BOLT PHOS. 4 pk Phosphate & Oil (KXF) B-15153 5/16-18 X 3.0 GR5 HX BOLT "TR" PHOS. 4 pk Phosphate & Oil (KLS) 300890-S2, 9418993 B-12634 5/16-18 X 3 1/2 GR5 HX BOLT PHOS. 2 pk Phosphate & Oil (ZQ~) 300902-S2, 9419046 B-12636 5/16-18 X 3 3/4 GR5 HX BOLT "RBW" PHOS. 2 pk Phosphate & Oil (LLW) 9419047 B-15154 5/16-18 X 4.0 GR5 HX BOLT PLAIN w NYL. 2 pk Plain Finish & Nylon Lock (KDP) 386594-S B-15155 5/16-18 X 5.0 GR5 HX BOLT "RBW" PHOS. 1 pk Phosphate & Oil (EY~) 300958-S2 B-10173 5/16-18 X 5 3/4 GR5 HX BOLT "RBW" ZC. 1 pk .0002 Zinc & Wax (RY~) 301003-S8 B-15076 5/16-18 X 5 13/16 GR5 HX BOLT .37 D PHOS. 2 pk Phosphate & Oil (OSJ) 2535992 (Chry) B-11694 5/16-18 X 6 1/2 HX BOLT .34 D BODY "WB" PHOS. 2 pk Phosphate & Oil (MOD) 3983096 (s) B-10174 5/16-18 X 6 5/8 GR5 HX BOLT .38 D BODY PHOS. 2 pk Phosphate & Oil (HIM) C8OA-5495-A, 384611-S2 B-10175 5/16-18 X 6 5/8 GR5 HX BOLT .38 BODY ZC. 2 pk .0002 Zinc & Wax (HIM) C2OA 5495-D, C9OA 5495-A (s7) B-11623 5/16-18 X 6.91 HX BOLT .34 D BODY "L" PHOS. 2 pk Phosphate & Oil (MVI) 381954 B-10176 5/16-18 X 9.52 GR5 HX BOLT .38 D BODY PHOS. 1 pk Phosphate & Oil (LLF) 384558-S2 B-10177 5/16-24 X 3/4 GR2 SMOOTH-TOP HX BOLT ZC. 4 pk .0002 Zinc & Wax (ZAY) B-15156 5/16-24 X 7/8 SMOOTH-TOP BOLT SS. 4 pk 100% Stainless Steel (LGJ) B-10507 5/16-24 X 1.0 GR8 HX BOLT "WB" ZC. 4 pk .0002 Zinc & Wax (LSP) 186634 B-10178 5/16-24 X 1 5/16 GR5 HX BOLT "A" PHOS. 2 pk Phosphate & Oil (ZBY) B-15681 5/16-24 X 1 1/2 GR5 HX BOLT "J" PHOS. 2 pk Phosphate & Oil (PAM) B-15157 5/16-24 X 1 3/4 GR5 HX BOLT PHOS w PELLET. 2 pk Phosphate & Nylon Lock (JG~) 378741-S2P B-12637 5/16-24 X 1 3/4 GR5 HX BOLT ZC w PELLET. 2 pk Zinc & Nylon Lock (JG~) 378741-S8P B-12638 5/16-24 X 2 1/2 GR5 HX BOLT "DOGBONE" ZC. 2 pk .0002 Zinc & Wax (KEE) B-15158 5/16-24 X 3 1/4 GR5 HX BOLT "A" PHOS. 4 pk Phosphate & Oil (JU~) 9420949 B-15682 5/16-24 X 3 3/8 GR2 SMOOTH-TOP HX BOLT PHOS. 2 pk Phosphate & Oil (PBM) B-15159 5/16-24 X 5 3/4 HX BOLT .34 D BODY "WB" ZC. 2 pk .0002 Zinc & Wax (MWC) 3817575 B-10179 5/16-24 X 6 1/2 HX BOLT 9/16 AF .34 D ZC. 2 pk .0002 Zinc & Wax (OTZ) 3790332 B-11706