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Hex Head Cap Screw (ASME 18.2.1)

FastenerHex Cap Screws are hex headed fasteners with external machine screw threads and differ from hex machine bolts by having a washer surface on the underside or bearing side of the head and a chamfered thread end. Hex cap screws have tighter dimensional tolerances than bolts. Metric hex cap screws are specified by various DIN, ISO and JIS standards, and US/Imperial hex cap screws are dimensionally specified by the ASME B18.2.1 specification.

Hex Head Cap Screw (b18.2.1), showing 200, (click on any line for more information)

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
CenturyFLHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM3 x 20m 3.0 x 20.0mm 18-8 hex cap screws full thread din 933233
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CenturyFLHex Head Cap ScrewGrade 5Zinc/Clear5/8-11 x 2 3/45/8-11 x 2 3/4 hex hd cap screw grade 5 zinc plt50
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CenturyFLHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-28 x 5/8ms35308-305 screw776
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CenturyFLHex Head Cap ScrewClass 8.8Zinc/ClearM10.0 x 40m10.0 x 40.mm grd 8.8 steel zinc hex cap screws full thread din 933863
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SunPackFLHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Fluoropolymer-Based (Xylan, Fluorokote, Teflon)3/4-10 x 3 3/43/4-10 x 3-3/4 304 ss fin hex bolt ptfe blue5
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SunPackFLHex Head Cap ScrewClass 10.9PlainM8-1.25 x 30m8-1.25 x 30mm 10.9 hex bolt plain din 93350
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SunPackFLHex Head Cap ScrewGrade 5Galvanized3/8-16 x 2 1/43/8-16 x 2-1/4 gr5 hex cap screw hdg217
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EndriesWIHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM16 x 40m16x40 a2 stainless / iso4017 full thread hex head cap screw din 93314
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EndriesWIHex Head Cap ScrewGrade 5Zinc/Yellow1/2-13 x 3 3/41/2-13x3-3/4 grade 5 hex head cap screw yellow zinc719
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EndriesWIHex Head Cap ScrewClass 8.8Zinc/ClearM16 x 65m16x65 class 8.8 / iso4017 full thread hex head cap screw trivalent clear zinc din 933130
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EndriesWIHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 21/4-20x2 grade 8 hex head cap screw yellow zinc100
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EndriesWIHex Head Cap ScrewClass 10.9Zinc/YellowM12-1.25 x 55m12x1.25x55 class 10.9 hex head cap screw yellow zinc din 960100
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EndriesWIHex Head Cap ScrewClass 12.9Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)M8 x 20m8x20 class 12.9 / iso4017 full thread hex head cap screw hex chromium free zinc flake silver 240 hours to red rust din 93321700
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EndriesWIHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 1 1/45/16-18 x 1 1/4 hex cap screw gr 8 zn/ye62
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EndriesWIHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 5 1/21/2-13x5-1/2 grade 5 hex head cap screw trivalent clear zinc25
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EndriesWIHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 3 1/23/8-16x3-1/2 grade 2 hex head cap screw tri clr zinc 72 white rust100
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EndriesWIHex Head Cap ScrewGrade 5Zinc/Yellow5/16-18 x 5/85/16-18x5/8 grade 5 hex head cap screw yellow zinc46
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EndriesWIHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 4 3/43/8-16x4-3/4 grade 5 hex head cap screw trivalent clear zinc805
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EndriesWIHex Head Cap ScrewGrade 5Plain1/2-13 x 121/2-13x12 grade 5 hex head cap screw plain314
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EndriesWIHex Head Cap Screw316, 317, A4 StainlessPlain1/2-13 x 1 1/41/2-13x1-1/4 316 stainless steel hex head cap screw180
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EndriesWIHex Head Cap Screw316, 317, A4 StainlessPlain5/16-18 x 1 1/45/16-18x1-1/4 316 stainless steel hex head cap screw300
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LibertyILHex Head Cap ScrewGrade 2Zinc/Clear3/4-10 x 6c/s grade 286
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LibertyILHex Head Cap ScrewGrade 2Zinc/Clear1/4-20 x 1/2c/s grade 2 rohs20
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LibertyILHex Head Cap ScrewGrade 5Zinc/Clear5/8-11 x 3 1/2c/s49
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LibertyILHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 5 1/23/8-16x5-1/2 c/s25
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LibertyILHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 21/4-20x2 c/s per astm b633 type ii sc-248
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LibertyILHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 1 3/4c/s &75
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LibertyILHex Head Cap ScrewGrade 8Zinc/Clear1/4-20 x 7/81/4-20x7/8 c/s f/t .0005 rohs (4 hr bake) w/certs200
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LibertyILHex Head Cap ScrewGrade 8Zinc/Clear1/4-20 x 3/41/4-20x3/4 c/s f/t .0005 rohs (4 hr bake) w/certs5,090
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LibertyILHex Head Cap ScrewGrade 8Zinc/Clear1/4-20 x 5/81/4-20x5/8 c/s .0005 rohs (4 hr bake) w/certs2,000
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LibertyILHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 5/8c/s184
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LibertyILHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 1c/s &1,019
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LibertyILHex Head Cap ScrewGrade BZinc/Yellowx 1 3/43/8-16 unc-2ax1-3/4 c/s astm a354-17 grade bd236
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LibertyILHex Head Cap ScrewSteelPlain3/8-24 x 4.7663/8-24x4.766 max special c/s nitrocarb .012-.016 deep r15n 89-91 special thread length per print length per print HCS037F0476NCSPL2
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LibertyILHex Head Cap Screw316, 317, A4 StainlessPlain1/2-13 x 1 1/2c/s 316 stainless domestic4
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LibertyILHex Head Cap Screw316, 317, A4 StainlessPlain5/16-18 x 3/4c/s 316 stainless84
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LibertyILHex Head Cap ScrewDuplex Stainless (2205, Ferralium etc.)Plain1/4-20 x 3/4c/s duplex s32205 1/16 dia hole through hex with certs1
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LibertyILHex Head Cap Screw316, 317, A4 StainlessPlain5/8-11 x 1 1/2hex c/s 316 stainless w/.1094 centered hole thru head29
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LibertyILHex Head Cap ScrewASTM A354 Grade BDZinc/Clear3/8-16 x 13/8-16 unc-2ax1 c/s astm 354 grade bd .0625 thick per astm b633-19153
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LibertyILHex Head Cap Screw316, 317, A4 StainlessPlain5/16-18 x 7/8c/s 316 stainless140
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LibertyILHex Head Cap ScrewGrade 8Plain1 1/4-12 x 6c/s7
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GUIDONNJHex Head Cap ScrewGrade 2Black Oxide1/4-20 x 3/41,200
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EndriesWIHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 11/4-20x1 grade 5 hex head cap screw tri clear zinc 96 white rust3750
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EndriesWIHex Head Cap ScrewGrade 5Plain1-8 x 91-8x9 grade 5 hex head cap screw plain1786
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EndriesWIHex Head Cap ScrewGrade 8Plain3/8-16 x 3/43/8-16x3/4 grade 8 hex head cap screw plain300
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EndriesWIHex Head Cap ScrewGrade 5Zinc/Clear3/4-16 x 53/4-16x5 grade 5 hex head cap screw zinc45
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EndriesWIHex Head Cap ScrewGrade 5Zinc/Clear3/8-24 x 13/8-24x1 grade 5 hex head cap screw trivalent clear zinc132
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EndriesWIHex Head Cap ScrewGrade 5Zinc/Clear3/4-10 x 23/4-10x2 grade 5 hex head cap screw tri clear zinc 96 white rust200
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MidStatesMIHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 18hex cap screw 4-1/4 thread length330
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METRO BOLMIHex Head Cap ScrewGrade 9Plain1/2-20 x 4 1/21/2-20x4-1/2 hex cap screw gr9 plain1348
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METRO BOLMIHex Head Cap ScrewGrade 9Plain1/4-20 x 1 3/41/4-20x1-3/4 gr9 hex cap screw plain5000
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METRO BOLMIHex Head Cap ScrewGrade 9Plain1/4-20 x 2 1/21/4-20x2-1/2 gr9 hex cap screw plain2100
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EndriesWIHex Head Cap ScrewGrade 5Plain1 1/4-7 x 111-1/4-7x11 grade 5 hex head cap screw plain6
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EndriesWIHex Head Cap ScrewClass 10.9Zinc/ClearM8 x 50m8x50 class 10.9 / iso4017 full thread hex head cap screw zinc din 9331556
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EndriesWIHex Head Cap ScrewGrade 5Zinc/Yellow1/4-28 x 1/21/4-28x1/2 grade 5 hex head cap screw yellow zinc75
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EndriesWIHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-24 x 1 1/43/8-24x1-1/4 18-8 stainless steel hex head cap screw100
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EndriesWIHex Head Cap ScrewClass 10.9PlainM24 x 40m24x40 class 10.9 / iso4017 full thread hex head cap screw plain din 933662
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EndriesWIHex Head Cap ScrewClass 8.8Zinc/ClearM6 x 10m6x10 class 8.8 / iso4017 full thread hex head cap screw trivalent clear zinc din 9331000
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EndriesWIHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 3/45/16-18x3/4 grade 5 hex head cap screw trivalent clear zinc scotch-grip 2353y yellow certified material test report2400
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EndriesWIHex Head Cap ScrewGrade 5Plain1/2-13 x 1 1/41/2-13x1-1/4 grade 5 hex head cap screw cablekoxdt6000
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EndriesWIHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 1/21/2-13x1/2 grade 5 hex head cap screw trivalent clear zinc with green dye8
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EndriesWIHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)PlainM16 x 65m16x65 a2 stainless / iso4014 partial thread hex head cap screw din 93150
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EndriesWIHex Head Cap ScrewClass 10.9Zinc/ClearM20 x 60m20x60 class 10.9 / iso4017 full thread hex head cap screw tri clr zinc 72 wh rust and sealer din 933150
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EndriesWIHex Head Cap ScrewGrade 5Zinc/Clear7/16-14 x 2 1/27/16-14x2-1/2 grade 5 hex head cap screw tri clear zinc 96 white rust50
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EndriesWIHex Head Cap ScrewGrade 5Zinc/Yellow1/4-20 x 7/81/4-20x7/8 grade 5 hex head cap screw tri ylw 96hr wh f1941 .0002300
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EndriesWIHex Head Cap Screw316, 317, A4 StainlessPlain5/8-11 x 2 3/45/8-11x2-3/4 316 stainless steel hex head cap screw50
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SunPackFLHex Head Cap Screw316, 317, A4 StainlessPlain5/8-11 x 4 1/25/8-11 x 4-1/2 316 ss fin hex bolt1
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LibertyILHex Head Cap ScrewClass 10.9Zinc/ClearM8-1.25 x 25c/s class 10.9 iso 4017 din 933550
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SunPackFLHex Head Cap ScrewGrade B7Plain5/8-11 x 4 1/45/8-11 x 4-1/4 a193 b7 hvy hex tap bolt plain domestic9
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SpencerOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/8-16 x 4 1/218-8 SST1700
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SISAZHex Head Cap ScrewGrade 8Plain3/4-10 x 6c/s40
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SISAZHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 1hex c/s1850
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SISAZHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 3/4hex c/s700
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SISAZHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 1 1/2hex c/s100
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SISAZHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 1/2hex c/s3200
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SISAZHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 1 1/4hex c/s clear1898
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SISAZHex Head Cap ScrewSteelZinc/Clear1/4-20 x 1 1/2hex c/s clear2395
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SISAZHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 3/4hex c/s clear98
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SISAZHex Head Cap ScrewGrade 2Zinc/Clear1/4-20 x 3hex m/b grade 2 clear345
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SISAZHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 2 3/4hex c/s50
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SISAZHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 2 1/2hex c/s50
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SISAZHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 2 1/4hex c/s50
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SISAZHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 2c/s 18-8 3041482
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SISAZHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 2 1/4c/s 18-8 s/s8205
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SISAZHex Head Cap ScrewSteelDip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)1/4-20 x 1 3/4hex c/s w/magni 560 per print1580
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SISAZHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 2c/s 18-8 s/s700
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SISAZHex Head Cap ScrewGrade 2Zinc/Clear1/4-20 x 2 1/2h/b grade 21650
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SISAZHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 1 1/2c/s50
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SISAZHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 2 1/2hex c/s48
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SISAZHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 3 3/4hex c/s450
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FACCAOntHex Head Cap ScrewClass 10.9PlainM12-1.75 x 48mm22mm washer, dog point600
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FACCAOntHex Head Cap ScrewClass 10.9PlainM14-1.50 x 45mm1997
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FACCAOntHex Head Cap ScrewClass 10.9PlainM12-1.75 x 45mm300
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FACCAOntHex Head Cap ScrewClass 10.9PlainM12-1.75 x 45mmdog point, 30mm washer10000
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FACCAOntHex Head Cap ScrewClass 10.9PlainM12-1.75 x 45mmfull thread200
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FACCAOntHex Head Cap ScrewClass 10.9PlainM12-1.75 x 40mmdog point, 25mm loose washer800
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FACCAOntHex Head Cap ScrewGrade 5Cadmium/Yellow#10-32 x 1tri-wing recess on top of hex head
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