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5/16 inch length SEMS Machine Screws (ASME B18. 13)

SEMS® Machine Screws are machine screws with pre-assembled captive washers, designed to speed total assembly time in a manufacturing process.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
Irwin IndOntSems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#3-48 x 5/163-48 x 5/16 phillips pan head m/s with external tooth lockwasher sems cleaned 18-8 stainless steel b18.138000
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Irwin IndOntSems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40 x 5/16 pan phillips ext sems m/s 18.8 s/s b18.13200
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Irwin IndOntSems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-32 x 5/168-32 x 5/16 pan phil m/s ext tooth l/w sems 18-8 ss b18.1312685
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Irwin IndOntSems Machine ScrewSteelZinc/Clear#10-32 x 5/1610-32 x 5/16 pan phil machine screw ext tooth l/w sems zinc b18.131580
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Irwin IndOntSems Machine ScrewSteelZinc/Clear#4-40 x 5/164-40 x 5/16 phil pan int sems m/s zinc b18.1370700
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Irwin IndOntSems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#6-32 x 5/166-32 x 5/16 pan phil int sems m/s stainless steel passivated b18.138300
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Irwin IndOntSems Machine ScrewSteelZinc/Clear#10-32 x 5/1610-32 x 5/16 pan phil int sems m/s-zinc b18.134000
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Irwin IndOntSems Machine ScrewSteelZinc/Black#4-40 x 5/164-40 x 5/16 phil pan sq cone sems m/s blk zinc b18.1355000
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Irwin IndOntSems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#6-32 x 5/166-32x5/16 pan phil m/screw square cone sems 18-8 304 b18.132500
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GLFOHSems Machine ScrewSteelZinc/Clear#8-32 x 5/16#8-32x5/16 phil pan hd sems internal l/w stl zc b18.13 () () ()9563
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GLFOHSems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#6-32 x 5/16#6-32x5/16 phil pan hd sems external l/w 18-8 s/s b18.13 () () ()115
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AbabaCASems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40 x 5/16 p-pan sem sqr-cn s/s b18.13200
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AbabaCASems Machine ScrewSteelZinc/Clear#6-32 x 5/166-32 x 5/16 p-pan sem ext wsh m/s stl znc b18.1310
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AbabaCASems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-32 x 5/168-32 x 5/16 p-pan sem int wsh m/s s/s b18.134000
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AbabaCASems Machine ScrewSteelZinc/Clear#8-32 x 5/168-32 x 5/16 p-pan sems int wsh m/s stl znc b18.13116
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AbabaCASems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#6-32 x 5/166-32 x 5/16 p-pan sems ext wsh m/s s/s b18.13500
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Irwin IndOntSems Machine ScrewSteelZinc/Clear#8-32 x 5/168-32 x 5/16 pan phil int sems m/s zinc triv clear b18.1310000
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Irwin IndOntSems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40 x 5/16 pan phil m/s sq cone sems 18-8 stainless steel b18.131571
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Irwin IndOntSems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#6-32 x 5/166-32x5/16 pan phill ext sems 18-8 304 steel b18.13250
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AbabaCASems Machine ScrewSteelPlain#2-56 x 5/162-56 x .312 stl screw lock kit (with f/w l/w.& h/n) b18.1314
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EximS'poreSems Machine ScrewSteelZinc/Clear#6-32 x 5/16screw hex head slottedsteel clear zn w.square cone washer# 6-32 x 5/16 in b18.136686
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EximS'poreSems Machine ScrewSteelZinc/Clear#6-32 x 5/16screw pan head phillips-recesstrivalent w. ext tooth l/washersteel clear #6-32 x 5/16 in [rohs] b18.13634
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EximS'poreSems Machine ScrewSteelZinc/Clear#6-32 x 5/16screw hex headsteel blue zn w. ext tooth lockwasher# 6-32 x 5/16 in. b18.13280
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EximS'poreSems Machine ScrewSteelZinc/Clear#6-32 x 5/16screw pan head phillips-recesssteel blue zn w. int. tooth l/washer# 6-32 x 5/16 in b18.1314702
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EximS'poreSems Machine ScrewSteelZinc/Clear#6-32 x 5/16screw pan head phillips-recesssteel blue zn w. square cone washer# 6-32 x 5/16 in. b18.133925
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EximS'poreSems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#6-32 x 5/16screw pan head phillips-recesss/s passivated w. split lockwasher# 6-32 x 5/16 in b18.1313236
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EximS'poreSems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#2-56 x 5/16screw pan head phillips-recesss/s passivated w. split l/washer# 2-56 x 5/16 in b18.13827
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EximS'poreSems Machine ScrewSteelZinc/Clear#8-32 x 5/16screw pan head phillips-recesssteel blue zn w.ext tooth l/washer# 8-32 x 5/16 in unc 2a (pe09912256) b18.1349831
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EximS'poreSems Machine ScrewSteelZinc/Clear#10-24 x 5/16screw hex headsteel clear zn w. ext tooth lockwasher# 10-24 x 5/16 in. b18.1324620
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EximS'poreSems Machine ScrewSteelZinc/Clear#10-32 x 5/16screw pan head phillips-recesssteel zn clear chromate w.ext tooth l/w# 10-32 x 5/16 in. b18.132917
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EximS'poreSems Machine ScrewSteelZinc/Clear#10-32 x 5/16screw hex head w.ext tooth l/washersteel blue trivalent#10-32 x 5/16 in [rohs] b18.1328465
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EximS'poreSems Machine ScrewSteelZinc/Clear#4-40 x 5/16screw pan head phillips-recesssteel blue zn w. ext tooth lockwasher# 4-40 x 5/16 in b18.1319
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EximS'poreSems Machine ScrewSteelZinc/Clear#4-40 x 5/16screw pan head phillips-recesstrivalent w. int. tooth l/washersteel clear #4-40 x 5/16 in [rohs] b18.1322930
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EximS'poreSems Machine ScrewSteelZinc/Clear#4-40 x 5/16screw pan head phillips-recesssteel blue zn w. sq. cone washer# 4-40 x 5/16 in. b18.1328565
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JET FITTINGCASems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#6-32 x 5/166-32x5/16 phillips pan sem screw square cone stainless steel 18-8 black oxide and wax 840135 b18.131400
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JET FITTINGCASems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40x5/16 phillips pan square cone sem screw stainless steel 18-8 43753 b18.13850
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JET FITTINGCASems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#8-32 x 5/168-32x5/16 phillips pn dbl sem 18-8 (nas1301c8-5) b18.131500
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JET FITTINGCASems Machine ScrewSteelZinc/Clear#8-32 x 5/168-32x5/16 phillips pn sq cone sem z 0805PPSQZ b18.134197
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QFCTXSems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Zinc/Clear#10-24 x 5/1610-24x5/16 slotted ind hex hd w/external tooth washer sems zinc (96 hrs sst white rust) rohs b18.135000
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QFCTXSems Machine ScrewSteelZinc/Clear#10-32 x 5/1610-32x5/16 phillips pan head machine screw and external tooth lock washer assembly (sems) zinc plated (96 hrs salt spray test white rust) rohs b18.1365891
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QFCTXSems Machine ScrewSteelPlain#10-32 x 5/1610-32x5/16 phil pan ext sem screw b18.131989
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QFCTXSems Machine ScrewSteelPlain#10-32 x 5/1610-32x5/16 phil pan ext sem screw b18.13775
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QFCTXSems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Zinc/Clear#10-32 x 5/16#10-32x5/16 phillips pan steel machine screw and spring lock washer sem zinc (96 hrs sst white rust) rohs b18.13372113
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QFCTXSems Machine ScrewSteelZinc/Clear#10-32 x 5/16#10-32x5/16 round head helical springwasher sems m/s zinc (96 hrs salt spray test for white rust) rohs b18.139930
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QFCTXSems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40x5/16 phil pan ext sem screw ss b18.132000
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QFCTXSems Machine ScrewSteelPlain#4-40 x 5/164-40x5/16 phil pan ext sem screw b18.1310783
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QFCTXSems Machine ScrewSteelPlain#4-40 x 5/164-40x5/16 phil pan int sem screw b18.132000
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QFCTXSems Machine ScrewSteelPlain#4-40 x 5/164-40x5/16 pan phillips split lock sems b18.131118
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QFCTXSems Machine ScrewSteelPlain#4-40 x 5/164-40x5/16 slotted pan ext sem screw b18.134700
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QFCTXSems Machine ScrewSteelZinc/Clear#6-32 x 5/166-32x5/16 hex head slotted square cone sems tri-zinc b18.132430
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QFCTXSems Machine ScrewSteelZinc/Clear#6-32 x 5/166-32x5/16 phillips pan head square cone sems screw tri-zinc b18.1311125
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QFCTXSems Machine ScrewSteelZinc/Clear#6-32 x 5/166-32x5/16 phillips pan sems screw ext l/w trivalent zinc b18.1334000
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QFCTXSems Machine ScrewSteelPlain#6-32 x 5/166-32x5/16 phil pan int sem screw b18.132110
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QFCTXSems Machine ScrewSteelZinc/Clear#6-32 x 5/166-32x5/16 phil pan int sem screw zinc b18.133456
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QFCTXSems Machine ScrewSteelZinc/Clear#8-32 x 5/168-32x5/16 pan phil sq cone sems zinc b18.131282
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QFCTXSems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Zinc/Clear#8-32 x 5/16#8-32x5/16 pan head slotted m/s external tooth l/w sems zinc (96 hrs sst white rust) rohs b18.1320170
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QFCTXSems Machine ScrewSteelZinc/Clear#8-32 x 5/168-32x5/16 slotted pan external sems zinc b18.137000
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QFCTXSems Machine ScrewSteelZinc/Clear#8-32 x 5/168-32x5/16 slotted pan external sems zinc b18.1312000
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General FMISems Machine ScrewSteelZinc/Clear#10-32 x 5/1610-32 x .312 phil pn sems nar-l zn b18.132845
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General FMISems Machine ScrewSteelZinc/Yellow#6-32 x 5/166-32 x .312 pn phil sems lw zn ylw b18.1310034
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QFCTXSems Machine ScrewSteelZinc/Clear#10-32 x 5/1610-32 x 5/16 slotted pan external sems zinc b18.133964
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QFCTXSems Machine ScrewSteelZinc/Yellow#4-40 x 5/164-40x5/16 phillps pan square cone sem zy b18.135178
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QFCTXSems Machine ScrewSteelZinc/Clear#6-32 x 5/166-32 x 5/16 pan phil int l/w sems zinc b18.1312500
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QFCTXSems Machine ScrewSteelZinc/Yellow#6-32 x 5/166-32x5/16 pan phil sq cone sems zy b18.132000
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QFCTXSems Machine ScrewSteelZinc/Clear#8-32 x 5/168-32x5/16 phil pan ext sem m/s zinc b18.13900
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QFCTXSems Machine ScrewSteelZinc/Yellow#8-32 x 5/168-32x5/16 phil pan ext sem m/s zy b18.134000
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Mid-ValleyCASems Machine ScrewSteelZinc/Clear#10-32 x 5/16sems tapping screw b18.13inquire
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Mid-ValleyCASems Machine ScrewSteelZinc/Clear#6-32 x 5/16sems tapping screw b18.13inquire
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JET FITTINGCASems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#6-32 x 5/16sem ext pan phillips 632x5/16 stainless steel b18.131000
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JET FITTINGCASems Machine ScrewSteelZinc/Clear#6-32 x 5/16sem ext pan phillips 632x5/16 steel zinc plated b18.131000
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JET FITTINGCASems Machine ScrewSteelZinc/Clear#8-32 x 5/16sem ext pan phillips 832x5/16 steel zinc plated b18.131960
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JET FITTINGCASems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/16sem s cone pan phillips 440x5/16 stainless steel b18.1332
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JET FITTINGCASems Machine ScrewSteelZinc/Clear#4-40 x 5/16sem s cone pan phillips 440x5/16 steel zinc plated b18.134800
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JET FITTINGCASems Machine ScrewSteelZinc/Clear#4-40 x 5/16sem ext pan phillips 440x5/16 steel zinc plated b18.138000
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JET FITTINGCASems Machine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#6-32 x 5/16sem s cone pan phillips 632x5/16 stainless steel black oxide b18.133643
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JET FITTINGCASems Machine ScrewSteelZinc/Clear#8-32 x 5/16sem s cone pan phillips 832x5/16 steel zinc plated b18.134375
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DavisILSems Machine ScrewSteelZinc/Clear#6-32 x 5/16#6-32 x 5/16 slotted. pan w ext tooth sems-steel zinc b18.135,000
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DavisILSems Machine ScrewSteelZinc/Clear#10-32 x 5/16#10-32 x 5/16 phillips pan w ext tooth sems-steel zinc b18.13950
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