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Hex Cap Screws

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.

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 ScrewClass 12.9Dip-Spin, Spray-Spin Basecoat + Topcoats (Dacromet, Doerken, Geomet, Magni, etc.)M20 x 160m20x160 hhcs 12.9 +geomet 321m geomet 321 + m topcoat. iso 4014 partial thread (thd length 52mm +/-.42) din 93110
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CenturyFLHex Head Cap Screw316, 317, A4 StainlessPlainM16 x 90m16 x 90 hex c/s a4 din 93320
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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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NAPPCOTXHex Head Cap ScrewGrade AGalvanized5/16-18 x 1 1/45/16-18 x 1 1/4 hexcap a307 hdg 304
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NAPPCOTXHex Head Cap ScrewGrade 5Zinc/Clear1-8 x 2 1/2hex cap scr gr5 zinc pltd 1-8x2-1/2 10
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NAPPCOTXHex Head Cap ScrewSteelZinc/Yellow5/16-18 x 1/2hex c/s lowcarbonsteel zy 5/16-18x1/2 100
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NAPPCOTXHex Head Cap ScrewGrade 8Zinc/Yellow3/4-10 x 3 3/4hex cap scr gr8 zinc&yellow3/4-10x3-3/4 30
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NAPPCOTXHex Head Cap ScrewGrade 5Zinc/Clear1/2-20 x 3/4hex c/s gr 5 zinc 1/2-20x3/4 263
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NAPPCOTXHex Head Cap ScrewSteelZinc/Clear3/8-16 x 6 1/2hex c/s lowcarbonsteel zp 3/8-16x6-1/2 85
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NAPPCOTXHex Head Cap Screw316, 317, A4 StainlessPlain1/2-13 x 1 3/8hex hd c/s s/s t316 1/2-13x1-3/8 26
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NAPPCOTXHex Head Cap ScrewGrade 8Zinc/Yellow7/16-14 x 2hexcapscr gr8 zinc&yellow 7/16-14x2 20
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NAPPCOTXHex Head Cap ScrewGrade 8Zinc/Yellow1-8 x 2 1/4hex hd c/s gr8 zinc yellow 1-8x2-1/4 7
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NAPPCOTXHex Head Cap ScrewGrade 8Plain7/8-9 x 2 1/2hex cap scr gr 8 7/8-9x2-1/2 9
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NAPPCOTXHex Head Cap ScrewGrade 8Zinc/Yellow3/4-10 x 1 1/2hex c/s gr 8 zinc yellow 3/4-10x1-1/2 2
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NAPPCOTXHex Head Cap ScrewGrade 5Zinc/Clear1-8 x 3 1/4hex cap scr gr5 zinc pltd 1-8x3-1/4 40
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NAPPCOTXHex Head Cap ScrewGrade 5Plain5/8-11 x 1 1/2hex cap screw grade 5 5/8-11x1-1/2 200
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NAPPCOTXHex Head Cap ScrewGrade 5Zinc/Clear5/8-11 x 5 1/2hex cap scr gr5 zinc pltd 5/8-11x5-1/2 3
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NAPPCOTXHex Head Cap ScrewSteelPlain1/4-20 x 5 1/2hexhd c/s lowcarbonsteelzp 1/4-20x5-1/2 196
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NAPPCOTXHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 1 1/4hex c/s gr5 zinc pltd 3/8-16x1-1/4 155
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NAPPCOTXHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 3/4hex cap scr gr5 zinc pltd 1/4-20x3/4 770
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NAPPCOTXHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 3/4hexcapscr gr5 zp w/patch 1/4-20x3/4 78
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NAPPCOTXHex Head Cap ScrewGrade 8Plain3/8-16 x 5/83/8-16 x 5/8 gr.8 hex cap screw 385
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NAPPCOTXHex Head Cap ScrewGrade 5Zinc/Clear9/16-12 x 2hex cap scr gr5 zinc pltd 9/16-12x2 83
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