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Hex Cap Screws, Steel or Grade 2 (ASME B18. 2.1)

Hex 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.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
ASMCILHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 1 3/43/8-16x1 3/4 (pt) unc gr2 hex cap screw low carb zp b18.2.1175
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Alma BoltMIHex Head Cap ScrewSteelGalvanized3/4-10 x 3 1/23/4-10 x 3 1/2 hdg hex cap screw b18.2.1227
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Alma BoltMIHex Head Cap ScrewSteelGalvanized7/8-9 x 2 1/27/8-9 x 2 1/2 hdg hex cap screw b18.2.1211
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Alma BoltMIHex Head Cap ScrewSteelGalvanized5/8-11 x 125/8-11 x 12 (6 thread) hdg hex cap screw b18.2.1379
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Alma BoltMIHex Head Cap ScrewSteelGalvanized5/8-11 x 45/8-11 x 4 hdg hex cap screw b18.2.1564
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Alma BoltMIHex Head Cap ScrewSteelGalvanized3/4-10 x 83/4-10 x 8 (6 thread) hdg hex cap screw b18.2.1520
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XL ScrewGAHex Head Cap ScrewGrade 2Plain1/4-20 x 1/2hex c/s SAE j429 asme b18.2.14,000
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XL ScrewGAHex Head Cap ScrewGrade 2Plain1/4-20 x 2 1/4hex c/s SAE j429 asme b18.2.11,400
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XL ScrewGAHex Head Cap ScrewGrade 2Plain1/4-20 x 5/8hex c/s SAE j429 asme b18.2.13,500
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XL ScrewGAHex Head Cap ScrewGrade 2Plain1/4-20 x 3/4hex c/s SAE j429 asme b18.2.13,000
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XL ScrewGAHex Head Cap ScrewGrade 2Plain1/4-20 x 1hex c/s SAE j429 asme b18.2.12,500
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XL ScrewGAHex Head Cap ScrewGrade 2Plain1/4-20 x 2hex c/s SAE j429 asme b18.2.11,500
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XL ScrewGAHex Head Cap ScrewGrade 2Plain1/4-20 x 1 1/4hex c/s SAE j429 asme b18.2.12,300
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XL ScrewGAHex Head Cap ScrewGrade 2Plain1/4-20 x 2 1/2hex c/s SAE j429 asme b18.2.11,300
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XL ScrewGAHex Head Cap ScrewGrade 2Plain1/4-20 x 1 1/2hex c/s SAE j429 asme b18.2.12,000
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XL ScrewGAHex Head Cap ScrewGrade 2Plain1/4-20 x 1 3/4hex c/s SAE j429 asme b18.2.11,800
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XL ScrewGAHex Head Cap ScrewGrade 2Plain1/4-20 x 3hex c/s SAE j429 asme b18.2.11,000
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XL ScrewGAHex Head Cap ScrewGrade 2Plain5/16-18 x 1 1/2hex c/s SAE j429 asme b18.2.11,200
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XL ScrewGAHex Head Cap ScrewGrade 2Plain1/4-20 x 4hex c/s SAE j429 asme b18.2.1675
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XL ScrewGAHex Head Cap ScrewGrade 2Plain5/16-18 x 1 3/4hex c/s SAE j429 asme b18.2.11,000
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XL ScrewGAHex Head Cap ScrewGrade 2Plain1/4-20 x 4 1/2hex c/s SAE j429 asme b18.2.1650
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XL ScrewGAHex Head Cap ScrewGrade 2Plain5/16-18 x 5/8hex c/s SAE j429 asme b18.2.12,000
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XL ScrewGAHex Head Cap ScrewGrade 2Plain5/16-18 x 3/4hex c/s SAE j429 asme b18.2.12,000
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XL ScrewGAHex Head Cap ScrewGrade 2Plain1/4-20 x 5 1/2hex c/s SAE j429 asme b18.2.1400
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XL ScrewGAHex Head Cap ScrewGrade 2Plain5/16-18 x 1 1/4hex c/s SAE j429 asme b18.2.11,200
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XL ScrewGAHex Head Cap ScrewGrade 2Plain5/16-18 x 1hex c/s SAE j429 asme b18.2.11,500
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EximS'poreHex Head Cap ScrewSteelPlaincap screw nylon grey2108-1-0-001-xm b18.2.17
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EximS'poreHex Head Cap ScrewSteelPlainplug head cover for hex screws/nuts m5polyethylene black8.00 x 11.00 mm mfr p/n 5305 b18.2.13058
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EximS'poreHex Head Cap ScrewSteelZinc/Clear#8-32 x 3/8screw hex c/s headsteel clear zn#8-32 x 3/8 in b18.2.141421
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EximS'poreHex Head Cap ScrewSteelZinc/Yellow#8-32 x 1/2screw hex c/s headsteel yellow zn# 8-32 x 1/2 in b18.2.1142668
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EximS'poreHex Head Cap ScrewSteelBlack Oxide#10-24 x 1/2screw hex c/s headsteel black oxide# 10-24 x 1/2 in b18.2.154
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EximS'poreHex Head Cap ScrewSteelBlack Oxide#10-24 x 5/16screw hex c/s headsteel black oxide# 10-24 x 5/16 in b18.2.15480
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EximS'poreHex Head Cap ScrewSteelZinc/Black#10-24 x 5/8screw hex c/s headsteel black zn# 10-24 x 5/8 in b18.2.1827
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EximS'poreHex Head Cap ScrewSteelZinc/Clear#10-32 x 3/8screw hex c/s headsteel clear zinc# 10-32 x 3/8 in b18.2.12849
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EximS'poreHex Head Cap ScrewSteelZinc/Clear#1/4-20 x 3/8screw hex c/s head (large head)steel blue zn#1/4-20 x 3/8 in ansi std b18.2.15466
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EximS'poreHex Head Cap ScrewSteelCopper Plated#1/4-20 x 01/2screw hex c/s headsteel copper plated# 1/4-20 x 0.500 in b18.2.167824
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EximS'poreHex Head Cap ScrewSteelZinc/Clear#1/4-20 x 1/2screw hex c/s headsteel clear zn#1/4-20 x 1/2 in b18.2.190
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EximS'poreHex Head Cap ScrewSteelZinc/Clear#1/4-20 x 5/8screw hex c/s headsteel clear trivalent (part #249677-001)#1/4-20 x 5/8 in [rohs] b18.2.11000
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EximS'poreHex Head Cap ScrewSteelZinc/Clear#1/4-20 x 3/4screw hex c/s headsteel clear trivalent [rohs]#1/4-20 x 3/4 in b18.2.14002
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EximS'poreHex Head Cap ScrewSteelZinc/Clear1/4-20 x 1 1/4scre hex c/s headsteel clear trivalent#1/4-20 x 1-1/4 in [rohs] b18.2.12057
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EximS'poreHex Head Cap ScrewSteelZinc/Clear1/4-20 x 1 1/4screw hex c/s headsteel clear trivalent partial thread#1/4-20 x 1-1/4 in [rohs] b18.2.13600
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EximS'poreHex Head Cap ScrewSteelZinc/Clear1/4-28 x 1/4screw cap hexsteel zinc plate unf 2a# 1/4-28 x 1/4 in b18.2.13680
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EximS'poreHex Head Cap ScrewSteelZinc/Clear#5/16-18screw hex c/s headsteel blue zinc trivalent#5/16-18 tpi x 0.86 in asme std b18.2.12500
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EximS'poreHex Head Cap ScrewSteelZinc/Clear#5/16-18screw hex c/s headsteel blue zinc trivalent#5/16-18 tpi x 2.5 in asme std b18.2.110000
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EximS'poreHex Head Cap ScrewSteelZinc/Clearscrew hex c/s head steel blue zinc trivalentasme std#3/8-16 tpi x 0.73 inch b18.2.1999
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EximS'poreHex Head Cap ScrewSteelZinc/Clear#3/8-16 x 1 1/4screw hex c/s headsteel blue zn#3/8-16 x 1-1/4 in b18.2.1470
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IPCVAHex Head Cap ScrewGrade 2Plain1/2-13 x 1 1/41/2-13x1 1/4 hex cap screw grade 2 steel asme b18.2.1 sae j429510
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IPCVAHex Head Cap ScrewGrade 2Plain3/8-16 x 7/83/8-16x7/8 hex cap screw grade 2 steel plain asme b18.2.1 saej4298,579
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IPCVAHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 1 1/23/8-16x1 1/2 hex cap screw grade 2 steel zinc partial threads only asme b18.2.1 saej42942,112
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IPCVAHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 63/8-16x6 hex cap screw grade 2 or grade 5 steel zinc asme b18.2.1 saej4291,175
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IPCVAHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 23/8-16x2 hex cap screw grade 2 steel cr3 zinc rohs asme b18.2.1 saej429 packed 600 per box87,000
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IPCVAHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 53/8-16x5 hex cap screw grade 2 steel cr3 zinc rohs asme b18.2.1 saej4292,544
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IPCVAHex Head Cap ScrewGrade 2Zinc/Clear1/2-13 x 1 1/41/2-13x1 1/4 hex cap screw grade 2 steel cr3 zinc rohs asme b18.2.1 saej429 must be rohs compliant454
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IPCVAHex Head Cap ScrewGrade 2Zinc/Clear1/4-20 x 11/4-20x1 hex cap screw grade 2 steel zinc full thread asme b18.2.1 saej42917,020
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IPCVAHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 2 1/23/8-16x2 1/2 hex cap screw grade 2 steel cr3 zinc rohs asme b18.2.1 saej4292,540
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IPCVAHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 3/43/8-16x3/4 hex cap screw grade 2 steel cr3 zinc rohs asme b18.2.1 saej429138,354
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IPCVAHex Head Cap ScrewGrade 2Plain7/8-9 x 27/8-9x2 hex cap screw grade 2 steel asme b18.2.1 saej42989
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IPCVAHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 23/8-16x2 hex cap screw grade 2 steel cr3 zinc rohs asme b18.2.1 saej4294,594
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IPCVAHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 7/83/8-16x7/8 hex cap screw grade 2 steel cr3 zinc rohs asme b18.2.1 saej42979,116
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General FMIHex Head Cap ScrewSteelPhosphate3/4-10 x 133/4-10 x 13 hhcs 8 phos b18.2.1920
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General FMIHex Head Cap ScrewSteelZinc/Yellow5/16-18 x 7/85/16-18 x .875 hhcs 5 .0002 zn yell b18.2.147865
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General FMIHex Head Cap ScrewSteelZinc/Clear1/2-13 x 3 1/21/2-13 x 3.5 hhcs 5 knurl zidi triv b18.2.11400
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General FMIHex Head Cap ScrewSteelPlain1/2-13 x 3.001/2-13 x 3.00 hhcs brnz full thread si b18.2.11423
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General FMIHex Head Cap ScrewSteelDip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)7/16-14 x 2.75hf 7/16-14 x 2.75 hhcs 8 magni 565 b18.2.15913
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General FMIHex Head Cap ScrewSteelZinc/Yellow1/4-20 x 4 1/41/4-20 x 4.25 hhcs 5 zn ylw b18.2.18781
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General FMIHex Head Cap ScrewSteelDip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)5/16-18 x 4.25hf 5/16-18 x 4.25 hhcs 8 magni 565 b18.2.13300
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General FMIHex Head Cap ScrewSteelZinc/Clear5/16 x 2 3/45/16 x 2.75 hhcs 5 zn clr w/adh patch b18.2.111350
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General FMIHex Head Cap ScrewSteelPhosphate3/4-10 x 7 1/23/4-10 x 7.5 hhcs 8 phos b18.2.1525
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General FMIHex Head Cap ScrewSteelZinc/Yellow5/16-18 x 4 1/45/16-18 x 4.25 hhcs 5 zn ylw b18.2.1878
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General FMIHex Head Cap ScrewSteelPhosphate3/8-16 x 13/8-16 x 1 hhcs sems 5 w/ lw phos 3m b18.2.129794
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General FMIHex Head Cap ScrewSteelZinc/Yellow1 1/4-7 x 101-1/4-7 x 10 hhcs 8 zn ylw w/drld hole b18.2.122
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General FMIHex Head Cap ScrewSteelPhosphate1 1/8-7 x 13 1/21-1/8-7 x 13.5 hhcs 5 phos b18.2.180
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General FMIHex Head Cap ScrewSteelZinc/Yellow1/2-13 x 31/2-13x3 hhcs 8 zn ylw nyl pel patch b18.2.1142
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General FMIHex Head Cap ScrewSteelZinc/Yellow3/4-10 x 133/4-10 x 13 hhcs 8 zn ylw triv cross b18.2.140
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General FMIHex Head Cap ScrewSteelZinc/Yellow5/16-18 x 15/16-18 x 1 hhcs 5 zn ylw triv b18.2.131691
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General FMIHex Head Cap ScrewSteelZinc/Yellow3/8-16 x 1 1/83/8-16 x 1.125 hhcs 5 zn ylw b18.2.12849
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General FMIHex Head Cap ScrewSteelZinc/Clear3/8-16 x 113/8-16 x 11 hhcs 5 zn clr triv b18.2.176
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General FMIHex Head Cap ScrewSteelDip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)3/8-24 x 4.75hf 3/8-24 x 4.75 hhcs 8 magni 565 b18.2.1898
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General FMIHex Head Cap ScrewSteelZinc/Yellow5/16-18 x 1 3/85/16-18 x 1.375 hhcs 5 zn ylw b18.2.11115
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APIIAHex Head Cap ScrewSteelZinc/Clear1/2-13 x 3/4screw hhc f/t #5 zncl ansi b18.2.11,834
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APIIAHex Head Cap ScrewSteelZinc/Clear1/2-13 x 1screw hhc f/t #5 zncl ansi b18.2.16,620
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APIIAHex Head Cap ScrewSteelZinc/Clear7/16-14 x 3 1/4screw hhc p/t #5 zncl ansi b18.2.1128
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APIIAHex Head Cap ScrewSteelZinc/Clear1/2-13 x 1 3/4screw hhc f/t #5 zncl ansi b18.2.11,499
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APIIAHex Head Cap ScrewSteelPlain3/4-10 x 7 1/2hhc #5 pl ansi b18.2.120
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APIIAHex Head Cap ScrewSteelZinc/Clear1/2-13 x 2 1/4screw hhc p/t #5 zncl ansi b18.2.12,022
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APIIAHex Head Cap ScrewSteelZinc/Clear5/8-11 x 6screw hhc /2 w/2in thrd zncl #5 ansi b18.2.1813
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APIIAHex Head Cap ScrewSteelZinc/Clear1/2-13 x 9 1/2screw hhc p/t zncl #5 ansi b18.2.140
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APIIAHex Head Cap ScrewSteelZinc/Clear1/2-13 x 5 1/2screw hhc p/t zncl #5 ansi b18.2.183
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APIIAHex Head Cap ScrewSteelZinc/Clear1/2-13 x 5screw hhc p/t zncl #5 ansi b18.2.1915
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APIIAHex Head Cap ScrewSteelZinc/Clear5/8-11 x 2hhc #5 f/t zncl latest revision ansi b18.2.11,926
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APIIAHex Head Cap ScrewSteelZinc/Clear5/16-18 x 2 1/2screw hhc p/t zncl ansi b18.2.11,864
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APIIAHex Head Cap ScrewSteelZinc/Clear5/8-11 x 6screw hhc /2 w/2 3/4in thrd zncl ansi b18.2.113
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APIIAHex Head Cap ScrewSteelZinc/Clear7/16-14 x 3 3/4screw hhc p/t #5 zncl ansi b18.2.1188
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APIIAHex Head Cap ScrewSteelZinc/Clear1/2-13 x 2screw hhc f/t #5 zncl ansi b18.2.1174
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FACCAOntHex Head Cap ScrewGrade 2Zinc/Clear3/8-24 x 1 3/4hex head cap screw sae 3/8-24 unf x 1 3/4 gr 2 low carbon steel not plated ansi b18.2.1-1965 b18.2.16,300
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FACCAOntHex Head Cap ScrewGrade 2Zinc/Clear3/8-24 x 2hex head cap screw sae 3/8-24 unf x 2 gr 2 low carbon steel zinc plated ansi b18.2.1-1965 b18.2.19,310
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FACCAOntHex Head Cap ScrewGrade 2Zinc/Clear5/8-11 x 1 1/2hex head cap screw sae 5/8-11 unc x 1 1/2 lg grade 2 low carbon steel not plated ansi b18.2.1-1965 b18.2.1999
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FACCAOntHex Head Cap ScrewGrade 2Plain3/4-16 x 2hex head cap screw sae 3/4-16 unf x 2 gr 2 low carbon steel plain finish ansi b18.2.1-1965 b18.2.11,124
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