Machine Screws - Flat Head Description AMK Finish OEM Part # Origin AMK Part # CLICK FOR PRICING 6-32 X 3/16 PH FL MS PHOS. 8 pk Phosphate & Oil (MSR) 9423027 B-15250 8-32 X 3/8 PH FLAT MS ZDC. 6 pk Zinc & Yellow (OBI) B-15251 8-32 X 1/2 PH FLAT MS PHOS. 6 pk Phosphate & Oil (Z~~) 50012-S2 B-12291 8-32 X 3/4 PH FLAT TT PHOS. 6 pk Phosphate & Oil (OFF) B-15252 10-24 X 1/2 PH FLAT MS SS. 6 pk 100% Stainless Steel (LWZ) 9418712 B-10387 12-24 X 1/2 PH FLAT EXT SEMS ZC. 6 pk .0002 Zinc & Wax (FD~) 356782-S8, 445638 B-12292 1/4-20 X 3/4 SLOT FLAT MS ZC. 6 pk .0002 Zinc & Wax (KIU) 350299-S8 B-15253 5/16-18 X 3/4 PH FLAT EXT SEMS PHOS. 4 pk Phosphate & Oil (KET) 379630-S2, 9419306 B-12295 5/16-18 X 3/4 SERRATED PH FLAT ZC. 6 pk .0002 Zinc & Wax (PRA) 9412177 B-15021 5/16-18 X 3/4 POZI FLAT THREAD FORMING ZC. 4 pk .0002 Zinc & Wax (ZCM) 378428-S8 (sim), 382541-S8 sim), 4439627 (sim) B-13685 5/16-18 X 1 1/8 PH FL EXT SEMS ZC. 4 pk .0002 Zinc & Wax (ZBS) B-15496 5/16-18 X 1 3/16 PH FL .48 D EXT SEMS ZC. 2 pk .0002 Zinc & Wax (PUM) B-15497 5/16-18 X 1 1/4 PH FL EXT SEMS PHOS. 3 pk Phosphate & Oil (LRF) 7667647 (pozi) B-10040 5/16-18 X 1.50 POZI FLAT MS .50 D ZC w NYL. 6 pk Zinc & Nylon Lock (LPR) 4848760 B-10397 3/8-16 X 1.0 PH FLAT MS PHOS. 4 pk Phosphate & Oil (PBA) B-15498 3/8-16 X 1 1/2 PH FLAT MS PHOS. 4 pk Phosphate & Oil (PCZ) B-15254