#4 Jack Screws

Hex Jack Screws are used in printed circuit boards or sheet metal fabrications and their purpose is to provide a set distance separator between two objects. The two objects could be two circuit boards or two sheets of sheet metal. Like a hex male/female standoff, a hex jack screw has one end projecting and threaded, and the other end drilled and internally threaded. Where a hex jack screw differs from a hex male/female standoff is that the threaded end on a jack screw protrudes further than the threaded end of a standoff.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
GLFOHHex Jack ScrewSteelZinc/Yellow#4-40 x 9/16 x 3/16#4-40x9/16x3/16 hex jack screw male stl zy () ()4341
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GLFOHHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/2 x 3/16#4-40x1/2x3/16 hex jack screw s/s () ()300
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CenturyFLHex Jack ScrewSteelPlain#4-40 x 3/16raf 4750-1 4-40 x 3/16 jack screw stl (ZINC YELLOW W/HARDWARE) (ZINC YELLOW W/HARDWARE) () () () () () () () () () ()219
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CenturyFLHex Jack ScrewSteelPlain#4-40l-com sdg300 jack screw 4-40 (.232 INCH) (.232 INCH) () () () () () () () () () ()60
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CenturyFLHex Jack ScrewSteelPlain#4-40 x 3/164-40 x 3/16 hex m/f jack screw (4-40 x 3/16LENG 3/16 HEX M/F JACK SCREW LOCKING ASSEMBLEY ZINC ROHS (FC47501-S-12)) (4-40 x 3/16LENG 3/16 HEX M/F JACK SCREW LOCKING ASSEMBLEY ZINC ROHS (FC47501-S-12)) () () () () () () () () () ()300
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CenturyFLHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40x5/16 mod jack screw s/sfascomp# fc47503-ss ()2237
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YANKEENHHex Jack ScrewSteelZinc/Clear#4-40 x .312 x 3/16jack screw hex900
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YANKEENHHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/16 x 3/16jack screw 18-8 304688
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HayesCAHex Jack ScrewSteelZinc/Yellow#4-40 x 5/16M24308/25-7z 4-40x5/16 jack screw with bow tie retaining clip zinc & yellow M24308/25-7Z92
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NAPPCOTXHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/4#4-40 x 1/4 hex jackscrew s/s nohard (430-NON RAF ELEC HARDWARE) (430-NON RAF ELEC HARDWARE) (430-NON RAF ELEC HARDWARE) (430-NON RAF ELEC HARDWARE) (430-NON RAF ELEC HARDWARE) (430-NON RAF ELEC HARDWARE) (430-NON RAF ELEC HARDWARE) (430-NON RAF ELEC HARDWARE) (430-NON RAF ELEC HARDWARE) (430-NON RAF ELEC HARDWARE) (430-NON RAF ELEC HARDWARE) (430-NON RAF ELEC HARDWARE)595
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HayesCAHex Jack ScrewSteelPlain#4-40 x 5/84-40 x 5/8 jack screw(3/16af) zii759
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HayesCAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Passivated#4-40 x 5/164-40 x 5/16 jack screw(3/16af) assembly 18-8ss pass100
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HayesCAHex Jack ScrewSteelNickel#4-40 x 5/164-40 x 5/16 jack screw(3/16af) nickel400
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HayesCAHex Jack ScrewSteelNickel#4-40 x 5/164-40 x 5/16 jack screw(3/16af) patch nickel5443
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HayesCAHex Jack ScrewSteelPlain#4-40 x 3/44-40 x 3/4 jack screw(3/16af) zii62
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HayesCAHex Jack ScrewSteelZinc/Clear#4-40 x 3/84-40 x 3/8 jack screw(3/16af) zinc400
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HayesCAHex Jack ScrewNi-Cu Alloy (Monel, K-Monel, etc.)Nickel#4-40 x .2444-40 x .244 jack screw(4.5mm af) copper nickel100
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HayesCAHex Jack ScrewSteelPlain#4-40 x 3/84-40 x 3/8 jack screw(3/16af) zii100
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HayesCAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/24-40 x 1/2 jack screw(3/16af) assembly 18-8ss12
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HayesCAHex Jack ScrewSteelPlain#4-40 x 9/164-40 x 9/16 jack screw(3/16af) zii1346
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HayesCAHex Jack ScrewSteelPlain#4-40 x 1/24-40 x 1/2 jack screw(3/16af) zii6495
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HayesCAHex Jack ScrewSteelNickel#4-40 x 5/164-40 x 5/16 jack screw(3/16af) m3 female nickel11573
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SWACOOHHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/4 3/16 x 3/16jackscrew 4-40x1/4 hex 3/16x3/16 stainless steel460
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EndriesWIHex Jack ScrewSteelZinc/Clear#4-40 x 3/164-40x3/16 jack screw with capt external lock washer trivalent clear zinc200
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EndriesWIHex Jack ScrewSteelZinc/Yellow#4-40 x 1/2 3/164-40x1/2 3/16 hex jack screw (only) steel zinc & yellow chromate rohs835
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EndriesWIHex Jack ScrewSteelZinc/Yellow#4-40 x 3/16 3/164-40x3/16 3/16 hex jack screw trivalent yellow zinc includes screw nut lock washer and 2 flat washers50
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EndriesWIHex Jack ScrewSteelZinc/Yellow#4-40 x 5/16 3/164-40x5/16 3/16 hex jack screw w/l/w s-zinc yellow 1ea 4 med l/w s-z&y rohs1500
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EndriesWIHex Jack ScrewBrassNickel#4-40 x 5/16 3/164-40x5/16 3/16 hex jack screw (only) brass nickel plate rohs1600
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EndriesWIHex Jack ScrewSteelZinc/Clear#4-40 x 7/16 3/164-40x7/16 3/16 hex jack screw (only) steel zinc rohs1000
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EndriesWIHex Jack ScrewSteelPlain#4-40 x 34-40 3m jack screw only1795
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EndriesWIHex Jack ScrewBrassPlain#4-40 x 3/164-40x3/16 screw lock k it 1 ea jack screw brass tin intl tooth l/w nut 2 f/w steel tin amp 863001060tlf500
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EndriesWIHex Jack ScrewSteelZinc/Clear#4-40 x .187 x .3124-40x.187x.312 hex jack screw tri clear zinc 96wh/120 red rust patch35000
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EndriesWIHex Jack ScrewAluminumPlain#4-40 x 5/164-40x5/16 aluminum thread length jack screw 3/16 hex2075
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SJS ProdCAHex Jack ScrewSteelZinc/Clear#4-40 x 3/16jackscrew 4-40 x 3/16 stl zp () () () () () () () () ()31
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SJS ProdCAHex Jack ScrewSteelZinc/Clear#4-40 x 1/4keystone 4-40 x 1/4 jack screw stl zp () () () () () () () () ()450
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NutsBoltsNEHex Jack ScrewSteelPlain#4-40 x .280jack screw 4-40x.280 m/f hex () ()175
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Cal FastenrsCAHex Jack ScrewSteelZinc/Clear#4-40 x 3/164-40x3/16af x 1/4lng jack screw stl i /raf 47502z /RAF47502Z800
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Cal FastenrsCAHex Jack ScrewSteelZinc/Yellow#4-40 x 1/44-40 x 1/4lng jack screw stl -nylok /raf 47502/nyl /RAF47502/NYL900
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Cal FastenrsCAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/16jack screw 3/16 hex 18-8 304 /raf 47503ss300
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Cal FastenrsCAHex Jack ScrewSteelZinc/Yellow#4-40 x 5/16 3/16hex jack screw w/2pc fw& 1pc lw w/nut zy cr3/raf 47503ykit/cr3500
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Cal FastenrsCAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/84-40 x 3/8 jackscrew 3/16 hex 18-8 304 steel w/patch 7268/nyl raf# 4750-4ssnyl 7268/nyl raf 4750-4ssnyl KEYSTONE7268NYL2,000
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Field FasILHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/164-40x3/16 jack screw 1/4 male thread 3/16 hex 18-8 ss ()500
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Field FasILHex Jack ScrewSteelZinc/Clear#4-40 x 5/84-40x5/8 jack screw 3/16 hex stl zc/rohs ()844
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EmpireWAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/164-40 x 3/16 jack screw ss () ()1800
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HayesCAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40 x 5/16 jack screw(3/16af) assembly 18-8ss100
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HayesCAHex Jack ScrewSteelZinc/Clear#4-40 x 5/164-40 x 5/16 jack screw(3/16af) patch zinc14937
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OlanderCAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/8jack scr 4-40 x 5/8 sst () ()693
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OlanderCAHex Jack ScrewSteelPlain#4-40 x 1/2jack screw kit 4-40 x 1/2 () ()788
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OlanderCAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 9/16jack scr 4-40 x 9/16 sst ()109
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JET FITTINGCAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/4 3/16 x 3/16jackscrew 4-40x1/4 hex 3/16x3/16 18-8 304 steel 100404JM303460
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JET FITTINGCAHex Jack ScrewSteelZinc/Yellow#4-40 x 3/16 x 5/16jackscrew assembly 4-40x3/16x5/16 steel zinc yellow 100504JMY1492
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LibertyILHex Jack ScrewSteelZinc/Clear#4-40 x 3/16 x 3/16hex jack screw oal 1/2in rohs compliant screw oal 1/2in rohs compliant917
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WDMBIAHex Jack ScrewSteelZinc/Yellow#4-40 x 3/16 x 3/8jack screw assy steel zyt 4-40x3/16x3/8500
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QCSORHex Jack ScrewSteelZinc/Yellow#4-40 x 3/163/16 x 1/44-40x3/16hx3/16lx1/4tl hex jackscrew zy raf electronic hardw346
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OlanderCAHex Jack ScrewSteelZinc/Clear#4-40 x 1/4jack screw 4-40x1/4 stl zn clear9829
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OlanderCAHex Jack ScrewSteelZinc/Clear#4-40 x 5/16jack scr 4-40x5/16 stl blk rohs31616
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QCSORHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/163/16 x 3/84-40x3/16hx3/16lx3/8tl jackscrew stainless494
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OlanderCAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/16jack scr 4-40x3/16 sst rohs5730
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QCSORHex Jack ScrewSteelPlain#4-40 x 3/163/16 x 5/164-40x3/16hx3/16lx5/16tl hex jackscrew br-ni lyn-tron2053
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QCSORHex Jack ScrewSteelZinc/Yellow#4-40 x 3/163/16 x 5/164-40x3/16hx3/16lx5/16tl jackscrew zyrc raf electronic hardw3947
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OlanderCAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/4jack scr 4-40x1/4 sst rohs5625
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QCSORHex Jack ScrewSteelZinc/Clear#4-40 x 3/163/16 x 5/164-40x3/16hx3/16lx5/16tl hex jackscrew z rohs raf electronic hardw2500
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QCSORHex Jack ScrewSteelZinc/Clear#4-40 x 3/163/16 x 3/84-40x3/16hx3/16lx3/8tl jackscrew zinc w/vc3 raf electronic hardw3429
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OlanderCAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/16jack screw 4-40x5/16 sst45676
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QCSORHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/163/16 x 1/44-40x3/16hx3/16lx1/4tl hex jackscrew ss raf electronic hardw800
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AFIFLHex Jack ScrewSteelZinc/Yellow#4-40 x 1/44-40x1/4 jack screw st zd ()427
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AFIFLHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/84-40x3/8 stainless steel jack screw ()466
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AFIFLHex Jack ScrewSteelZinc/Yellow#4-404-40 jack screw zinc yellow ()1940
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QFCTXHex Jack ScrewSteelPlain#4-40 x 3/4hex jack screw 4-40x3/4 l .1875 hex297
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QFCTXHex Jack ScrewSteelZinc/Yellow#4-40 x 0.3124-40x0.312 jackscrew 3/16 hex w/4-40 internal threads steel 0.0002-0.0004 zinc plate yellow278050
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QFCTXHex Jack ScrewSteelZinc/Yellow#4-40 x 0.3124-40x0.312 jackscrew 3/16 hex w/4-40 internal threads steel 0.0002-0.0004 zinc plate yellow490540
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QFCTXHex Jack ScrewSteelPlain#4-40 x 5/8keystone scr jack 4-40x5/8 .187 hex322
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QFCTXHex Jack ScrewSteelZinc/Clear#4-40 x 5/16#4-40x5/16 jackscrew 3/16 hex 4-40 internal threads steel 0.0002-0.0004 zinc plate clear trivalent chromate must withstand 5 psi torque to hex sort to 50 ppm1159093
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QFCTXHex Jack ScrewSteelZinc/Yellow#4-40 x 0.5604-40x0.560 jackscrew 3/16 hex w/4-40 internal threads steel 0.0002-0.0004 zinc plate yellow418860
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QFCTXHex Jack ScrewSteelZinc/Yellow#4-40 x 0.5604-40x0.560 jackscrew 3/16 hex w/4-40 internal threads steel 0.0002-0.0004 zinc plate yellow201800
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SISAZHex Jack ScrewSteelZinc/Clear#4-40 x 1/4 3/164-40x1/4 long (3/16 hex) jack screw stl zinc11000
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SISAZHex Jack ScrewSteelZinc/Clear#4-40 3/16 x 3/164-40 (3/16 hex)x3/16 jack screw stl zinc6750
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SISAZHex Jack ScrewSteelZinc/Clear#4-40 x 1/4slotted male-female jack screw clear ()1300
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SISAZHex Jack ScrewSteelZinc/Clear#4-40 x 3/16(3/16 hex length ) jack screw stl ()480
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TSFTXHex Jack ScrewSteelZinc/Clear#4-40 x 5/16jack screw no hardware clear trivalent zinc 4-40 x 5/168100
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TSFTXHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/16jack screw no hardware stainless steel 4-40 x 5/161000
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TSFTXHex Jack ScrewSteelZinc/Clear#4-40 x 1/2jack screw trivalent clear zinc no hardware 4-40 x 1/2319
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ACFCAHex Jack ScrewSteelZinc/Yellow#4-40 x 1/44-40x1/4 screw lock jackscrew no bow tie clip zinc ii1440
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Kanebridge ILHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 7/164-40x7/16 3/16 hex jackscrew male 300 series stainless steel12.500
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Kanebridge ILHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40x5/16 3/16 hex jackscrew male 300 series stainless steel12.500
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Kanebridge ILHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/84-40x3/8 3/16 hex jackscrew male 300 series stainless steel12.500
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Kanebridge ILHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/164-40x3/16 3/16 hex jackscrew male 300 series stainless steel12.500
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Kanebridge ILHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/44-40x1/4 3/16 hex jackscrew male 300 series stainless steel12.500
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Kanebridge ILHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 9/164-40x9/16 3/16 hex jackscrew male 300 series stainless steel12.500
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Kanebridge ILHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/84-40x5/8 3/16 hex jackscrew male 300 series stainless steel12.500
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Kanebridge ILHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/24-40x1/2 3/16 hex jackscrew male 300 series stainless steel12.500
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Kanebridge ILHex Jack ScrewSteelZinc/Yellow#4-40 x 3/164-40x3/16 3/16 hex jackscrew male zinc yellow50,000
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Kanebridge ILHex Jack ScrewSteelZinc/Yellow#4-40 x 1/44-40x1/4 3/16 hex jackscrew male zinc yellow50,000
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Kanebridge ILHex Jack ScrewSteelZinc/Yellow#4-40 x 9/164-40x9/16 3/16 hex jackscrew male zinc yellow25,000
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Kanebridge ILHex Jack ScrewSteelZinc/Yellow#4-40 x 7/164-40x7/16 3/16 hex jackscrew male zinc yellow37.500
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Kanebridge ILHex Jack ScrewSteelZinc/Yellow#4-40 x 5/164-40x5/16 3/16 hex jackscrew male zinc yellow50,000
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Kanebridge ILHex Jack ScrewSteelZinc/Yellow#4-40 x 3/84-40x3/8 3/16 hex jackscrew male zinc yellow37.500
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Kanebridge ILHex Jack ScrewSteelZinc/Yellow#4-40 x 1/24-40x1/2 3/16 hex jackscrew male zinc yellow25,000
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Kanebridge ILHex Jack ScrewSteelZinc/Yellow#4-40 x 5/84-40x5/8 3/16 hex jackscrew male zinc yellow12.500
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Kanebridge ILHex Jack ScrewSteelZinc/Clear#4-40 x 3/164-40x3/16 3/16 hex jackscrew male zinc50,000
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Kanebridge ILHex Jack ScrewSteelZinc/Clear#4-40 x 5/164-40x5/16 3/16 hex jackscrew male zinc50,000
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Kanebridge ILHex Jack ScrewSteelZinc/Clear#4-40 x 1/44-40x1/4 3/16 hex jackscrew male zinc50,000
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Kanebridge ILHex Jack ScrewSteelZinc/Clear#4-40 x 3/84-40x3/8 3/16 hex jackscrew male zinc37.500
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General FMIHex Jack ScrewSteelZinc/Clear#4-40 x 5/84-40 x 5/8 jack scr .0002 zn clr45000
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General FMIHex Jack ScrewSteelZinc/Yellow#4-40 x .3134-40 x.313 jack scr nyl patch zn ylw6285
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ZAL INDUSCAHex Jack ScrewSteelZinc/Clear#4-404-40 m/f jack screw plated100
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EmpireWAHex Jack ScrewSteelZinc/Clear#4-40 x 1/44-40 x 1/4 jack screw 3/16hx zinc plate w/ nd expand-a-lock threadlocker30000
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AbabaCAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/164-40 x 3/16 hex jack screw 3/16 af s/s2700
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AbabaCAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/164-40 x 3/16 hex jack screw 3/16 af s/s200
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AbabaCAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/44-40 x 1/4 hex jack screw 3/16 af s/s248
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AbabaCAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 5/164-40 x 5/16 hex jack screw 3/16 af s/s1000
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AbabaCAHex Jack ScrewSteelZinc/Yellow#4-40 x 7/164-40 x 7/16 hex jack screw steel yellow zinc1000
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AbabaCAHex Jack ScrewSteelZinc/Clear#4-40 x 1/44-40 x 1/4 hex jack screw 3/16 af stl znc100
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AbabaCAHex Jack ScrewSteelZinc/Clear#4-40 x 5/164-40 x 5/16 hex jack screw 3/16 af stl znc275
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AbabaCAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 3/84-40 x 3/8 hex jack screw 3/16 af s/s78
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AbabaCAHex Jack ScrewSteelZinc/Yellow#4-40 x 9/164-40 x 9/16 hex jack screw stl yellow zinc900
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AbabaCAHex Jack ScrewSteelZinc/Yellow#4-40 x 3/44-40 x 3/4 hex jack screw stl yel znc126
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AbabaCAHex Jack ScrewSteelPlain#4-40 x 1 3/44-40 x 1 3/4 slim line turnable jack screw w/slot305
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JET FITTINGCAHex Jack Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain#4-40 x 1/4 3/16 x 3/16jackscrew 4-40x1/4 hex 3/16x3/16 stainless steel444
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AIHAZHex Jack ScrewSteelZinc/Yellow#4-40jackscrew stl ylw chromate4000
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AIHAZHex Jack ScrewSteelZinc/Yellow#4-40jackscrew plate5000
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AIHAZHex Jack ScrewSteelZinc/Yellow#4-40jackscrew plate5000
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AIHAZHex Jack ScrewSteelZinc/Yellow#4-40jackscrew stl ylw chromate4000
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ASFCORPMIHex Jack ScrewSteelZinc/Clear#4-40 x 1/4 3/164-40 x 1/4 3/16 hex jack scw standoff tri zn fe/zn 5an pkg10,000
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OlanderCAHex Jack ScrewSteelPlain#4-40 x 1/2jack screw kit 4-40 x 1/2 (2 per)102
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OlanderCAHex Jack ScrewSteelZinc/Yellow#4-40 x 3/16jack screw 4-40 x 3/16 stl zn yellow106
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GUIDONNJHex Jack ScrewSteelZinc/Clear#4-40 x 5/16Keystone Electronics 7230 LESS HARDWAREinquire
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