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#4 Machine Screws (ASME B18. 6.3)

Machine Screws are uniformly threaded screws which are designed to be screwed into pre-drilled, pre-threaded holes, or in conjunction with a nut, usually with a diameter less than 1/4inch. Larger diameter machine screws with a hex head are usually referred to as machine bolts.

Machine Screw (b18.6.3), showing 200, (click on any line for more information)

Search Results Sponsored by ISSCO, Inc., your source for Machine Screws. For more results, visit   isscoinc.com
SupplierLocTypeMaterialFinishSizeDescriptionQty 
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AbabaCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 14-40 x 1 p-flat 100 deg m/s s/s b18.6.3500
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AbabaCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 14-40 x 1 p-flat m/s s/s b18.6.32346
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AbabaCAMachine ScrewSteelZinc/Clear#4-40 x 14-40 x 1 p-flat m/s stl znc b18.6.37500
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AbabaCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 14-40 x 1 p-pan m/s s/s b18.6.3678
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AbabaCAMachine ScrewSteelZinc/Clear#4-40 x 14-40 x 1 p-pan m/s stl znc b18.6.312218
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AbabaCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 14-40 x 1 s-fill m/s s/s b18.6.3400
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AbabaCAMachine ScrewSteelZinc/Clear#4-40 x 1 1/84-40 x 1 1/8 s-flat m/s stl znc b18.6.3100
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AbabaCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1 1/44-40 x 1 1/4 p-flat m/s s/s b18.6.3251
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AbabaCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/84-40 x 1/8 p-flat m/s u/cut s/s b18.6.3860
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AbabaCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/84-40 x 1/8 p-pan m/s s/s b18.6.33276
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AbabaCAMachine ScrewSteelZinc/Clear#4-40 x 1/84-40 x 1/8 p-pan m/s stl znc b18.6.34589
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AbabaCAMachine ScrewSteelZinc/Clear#4-40 x 1/84-40 x 1/8 s-bind m/s stl znc b18.6.3800
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AbabaCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1 3/84-40 x 1 3/8 p-pan m/s s/s b18.6.32920
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AbabaCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1 3/84-40 x 1 3/8 s-flat m/s s/s b18.6.3764
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AbabaCAMachine ScrewSteelZinc/Clear#4-40 x 1 3/84-40 x 1 3/8 s-flat m/s stl znc b18.6.3400
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AbabaCAMachine ScrewNylon (Polyamide)Plain#4-40 x 1 3/84-40 x 1 3/8 s-pan m/s nylon b18.6.31017
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AbabaCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1 1/24-40 x 1 1/2 p-flat m/s s/s b18.6.3368
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AbabaCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1 1/24-40 x 1 1/2 p-pan m/s s/s b18.6.31247
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AbabaCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/164-40 x 3/16 p-flat 100 deg m/s s/s b18.6.31349
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AbabaCAMachine ScrewSteelZinc/Clear#4-40 x 3/164-40 x 3/16 p-flat 100 deg m/s stl znc b18.6.31975
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SIIINMachine ScrewSteelZinc/Clear#4-40 x 1 1/2#4-40 x 1-1/2 phillips pan head zinc plated machine screw) b18.6.39850
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JET FITTINGCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/8machine screw flat82 phillips 440x1/8 stainless steel undercut b18.6.3100
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JET FITTINGCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/8machine screw pan phillips 440x1/8 stainless steel b18.6.3500
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JET FITTINGCAMachine ScrewSteelZinc/Clear#4-40 x 1/8machine screw pan phillips 440x1/8 steel zinc b18.6.3700
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JET FITTINGCAMachine ScrewSteelZinc/Clear#4-40 x 1/84-40x1/8 phillips pan machine screw steel zinc b18.6.33000
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JET FITTINGCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/16machine screw flat100 phillips 440x3/16 stainless steel b18.6.32620
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JET FITTINGCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#4-40 x 3/16machine screw flat100 phillips 440x3/16 stainless steel black oxide and wax b18.6.33300
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JET FITTINGCAMachine ScrewSteelZinc/Clear#4-40 x 3/16machine screw flat100 phillips 440x3/16 steel zinc b18.6.31900
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JET FITTINGCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/16machine screw flat82 phillips 440x3/16 stainless steel undercut b18.6.3334
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JET FITTINGCAMachine ScrewSteelZinc/Clear#4-40 x 3/16machine screw flat82 phillips 440x3/16 steel zinc undercut b18.6.32690
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JET FITTINGCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/164-40x3/16 phillips pan machine screw stainless steel 18-8 b18.6.3700
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JET FITTINGCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Black Oxide#4-40 x 3/16machine screw pan phillips 440x3/16 stainless steel black oxide and wax b18.6.36500
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JET FITTINGCAMachine ScrewSteelZinc/Clear#4-40 x 3/16machine screw pan phillips 440x3/16 steel zinc plated b18.6.32000
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JET FITTINGCAMachine Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/16machine screw pan slotted 440x3/16 stainless steel b18.6.3580
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