FCH News

3 1/4 inch length Hex Cap Screws (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.

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

Buy Hex Cap Screws from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
Irwin IndOntHex Head Cap ScrewGrade 8Zinc/Yellow1/2-20 x 3 1/41/2-20 x 3-1/4 hex capscrew grade 8 zinc dichromate b18.2.1125
    Contact_Supplier
Irwin IndOntHex Head Cap ScrewGrade 2Zinc/Black3/8-16 x 3 1/43/8-16 x 3 1/4 unc gr 2 hhcs .0002 min zinc trivalent black b18.2.1500
    Contact_Supplier
Irwin IndOntHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 3 1/41/2-13 x 3 1/4 unc gr 8 hhcs drill hd .125 znc yellow .0003 b18.2.154
    Contact_Supplier
GLFOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-13 x 3 1/41/2-13x3-1/4 hhcs 18-8 s/s b18.2.1 () () ()35
    Contact_Supplier
GLFOHHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 3 1/41/2-13x3-1/4 hhcs grade 8 stl zy b18.2.1 () () ()1875
    Contact_Supplier
GLFOHHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 3 1/41/2-13x3-1/4 hhcs grade 5 stl zc b18.2.1 () () ()30
    Contact_Supplier
GLFOHHex Head Cap ScrewGrade 8Zinc/Yellow1/2-20 x 3 1/41/2-20x3-1/4 hhcs grade 8 stl zy b18.2.1 () () ()138
    Contact_Supplier
GLFOHHex Head Cap ScrewGrade 5Zinc/Clear3/4-10 x 3 1/43/4-10x3-1/4 hhcs grade 5 stl zc b18.2.1 () () ()32
    Contact_Supplier
GLFOHHex Head Cap ScrewGrade 8Zinc/Yellow3/4-10 x 3 1/43/4-10x3-1/4 hhcs grade 8 stl zy b18.2.1 () () ()132
    Contact_Supplier
GLFOHHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 3 1/43/8-16x3-1/4 hhcs grade 5 stl zc b18.2.1 () () ()835
    Contact_Supplier
GLFOHHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 3 1/41/4-20x3-1/4 hhcs grade 5 stl zc b18.2.1 () () ()497
    Contact_Supplier
GLFOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 3 1/45/16-18x3-1/4 hhcs 18-8 s/s b18.2.1 () () ()13
    Contact_Supplier
GLFOHHex Head Cap ScrewGrade 8Zinc/Yellow5/8-11 x 3 1/45/8-11x3-1/4 hhcs grade 8 stl zy b18.2.1 () () ()82
    Contact_Supplier
GLFOHHex Head Cap ScrewGrade 5Zinc/Clear5/8-11 x 3 1/45/8-11x3-1/4 hhcs grade 5 stl zc b18.2.1 () () ()452
    Contact_Supplier
GLFOHHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/8-11 x 3 1/45/8-11x3-1/4 hhcs 18-8 s/s b18.2.1 () () ()83
    Contact_Supplier
GLFOHHex Head Cap ScrewGrade 5Zinc/Clear5/8-18 x 3 1/45/8-18x3-1/4 hhcs grade 5 stl zc b18.2.1 () () ()45
    Contact_Supplier
GLFOHHex Head Cap ScrewGrade 5Zinc/Clear7/16-14 x 3 1/47/16-14x3-1/4 hhcs grade 5 stl zc b18.2.1 () () ()49
    Contact_Supplier
GLFOHHex Head Cap ScrewGrade 5Zinc/Clear3/8-24 x 3 1/43/8-24x3-1/4 hhcs grade 5 stl zc b18.2.1 () () ()65
    Contact_Supplier
GLFOHHex Head Cap ScrewGrade 5Zinc/Clear7/8-9 x 3 1/47/8-9x3-1/4 hhcs grade 5 stl zc b18.2.1 () () ()45
    Contact_Supplier
GLFOHHex Head Cap ScrewGrade 8Zinc/Yellow7/8-9 x 3 1/47/8-9x3-1/4 hhcs grade 8 stl zy b18.2.1 () () ()33
    Contact_Supplier
GLFOHHex Head Cap ScrewGrade 5Plain1/2-13 x 3 1/41/2-13x3-1/4 hhcs grade 5 stl pln b18.2.1 () () ()609
    Contact_Supplier
GLFOHHex Head Cap ScrewGrade 5Plain3/4-10 x 3 1/43/4-10x3-1/4 hhcs grade 5 stl pln b18.2.1 () () ()48
    Contact_Supplier
GLFOHHex Head Cap ScrewGrade 8Plain3/4-10 x 3 1/43/4-10x3-1/4 hhcs grade 8 stl pln b18.2.1 () () ()284
    Contact_Supplier
AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow1-8 x 3 1/41-8 x 3 1/4 h/c dom gr 8 yel znc b18.2.12
    Contact_Supplier
AbabaCAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1-8 x 3 1/41-8 x 3 1/4 h/c s/s b18.2.12
    Contact_Supplier
AbabaCAHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 3 1/41/4-20 x 3 1/4 h/c gr 5 znc b18.2.1100
    Contact_Supplier
AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 3 1/41/4-20 x 3 1/4 h/c dom gr 8 yel znc b18.2.1100
    Contact_Supplier
AbabaCAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3 1/41/4-20 x 3 1/4 h/c s/s b18.2.156
    Contact_Supplier
AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow1/4-28 x 3 1/41/4-28 x 3 1/4 h/c dom gr 8 yel znc b18.2.130
    Contact_Supplier
AbabaCAHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 3 1/45/16-18 x 3 1/4 h/c gr 5 znc b18.2.1287
    Contact_Supplier
AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 3 1/45/16-18 x 3 1/4 h/c dom gr 8 yel znc b18.2.1183
    Contact_Supplier
AbabaCAHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 3 1/45/16-18 x 3 1/4 h/c s/s b18.2.134
    Contact_Supplier
AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow5/16-24 x 3 1/45/16-24 x 3 1/4 h/c dom gr 8 yel znc b18.2.1226
    Contact_Supplier
AbabaCAHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 3 1/43/8-16 x 3 1/4 h/c gr 5 znc b18.2.1493
    Contact_Supplier
AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 3 1/43/8-16 x 3 1/4 h/c dom gr 8 yel znc b18.2.1272
    Contact_Supplier
AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow3/8-24 x 3 1/43/8-24 x 3 1/4 h/c dom gr 8 yel znc b18.2.123
    Contact_Supplier
AbabaCAHex Head Cap ScrewGrade 8Plain7/16-14 x 3 1/47/16-14 x 3 1/4 h/c al-2000 (black) gr 8 b18.2.1461
    Contact_Supplier
AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow7/16-14 x 3 1/47/16-14 x 3 1/4 h/c dom gr 8 yel znc b18.2.1333
    Contact_Supplier
AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow7/16-20 x 3 1/47/16-20 x 3 1/4 h/c dom gr 8 yel znc b18.2.1160
    Contact_Supplier
AbabaCAHex Head Cap Screw316, 317, A4 StainlessPlain1/2-13 x 3 1/41/2-13 x 3 1/4 h/c 316 s/s b18.2.148
    Contact_Supplier
AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 3 1/41/2-13 x 3 1/4 h/c dom gr 8 yel znc b18.2.1130
    Contact_Supplier
AbabaCAHex Head Cap ScrewGrade 9Zinc/Yellow1/2-13 x 3 1/41/2-13 x 3 1/4 h/c gr.9 yel znc b18.2.125
    Contact_Supplier
AbabaCAHex Head Cap ScrewGrade 8Zinc/Yellow1/2-20 x 3 1/41/2-20 x 3 1/4 h/c dom gr 8 yel znc b18.2.187
    Contact_Supplier
SIIINHex Head Cap ScrewGrade 2Zinc/Clear1/4-20 x 3 1/41/4-20x3 1/4 (pt) grade 2 hex cap screw zinc cr+3 b18.2.1512
    Contact_Supplier
SIIINHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain3/4-10 x 3 1/43/4-10 x 3 1/4 hcs 18-8 stainless b18.2.118
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 8Plain5/16-18 x 3 1/45/16-18x3 1/4 hex c/s gr8 plain b18.2.1200
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 2Plain1/2-13 x 3 1/41/2-13x3 1/4 hex cap screw grade 2 b18.2.1144
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 5Galvanized3/8-16 x 3 1/43/8-16x3 1/4 hex c/s gr5 hdg domestic b18.2.1295
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 5Galvanized3/8-16 x 3 1/43/8-16x3 1/4 hex c/s gr5 hdg domestic b18.2.1645
    Contact_Supplier
QFCTXHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 3 1/45/16-18x3 1/4 hex c/s 18-8 b18.2.119
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 3 1/41/4-20x3 1/4 hex c/s gr5 zinc b18.2.1244
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 5Zinc/Clear5/16-18 x 3 1/45/16-18x3 1/4 hex c/s gr5 zinc b18.2.192
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 8Zinc/Yellow5/16-18 x 3 1/45/16-18x3 1/4 hex c/s gr8 y/zinc b18.2.1246
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 2Zinc/Clear3/8-16 x 3 1/43/8-16x3 1/4 hex c/s gr2 zinc b18.2.1860
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 5Zinc/Clear3/8-16 x 3 1/43/8-16x3 1/4 hex c/s gr5 zinc b18.2.1154
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 3 1/43/8-16x3 1/4 hex c/s gr8 y/zinc b18.2.118
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 2Zinc/Clear1/2-13 x 3 1/41/2-13x3 1/4 hex c/s gr2 zinc b18.2.1125
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 3 1/41/2-13x3 1/4 hex c/s gr5 zinc b18.2.1118
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 8Zinc/Yellow1/2-20 x 3 1/41/2-20x3 1/4 hex c/s gr8 y/zinc b18.2.115
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 8Zinc/Yellow1/2-20 x 3 1/41/2-20x3 1/4 hex c/s gr8 y/zinc b18.2.130
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 5Zinc/Clear5/8-11 x 3 1/45/8-11x3 1/4 hex c/s gr5 zinc b18.2.135
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 5Zinc/Clear5/8-11 x 3 1/45/8-11x3 1/4 hex c/s gr5 zinc b18.2.198
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 8Zinc/Yellow5/8-11 x 3 1/45/8-11x3 1/4 hex c/s gr8 y/zinc b18.2.162
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 5Zinc/Clear3/4-10 x 3 1/43/4-10x3 1/4 hex c/s gr5 zinc b18.2.153
    Contact_Supplier
QFCTXHex Head Cap ScrewGrade 8Zinc/Yellow3/4-10 x 3 1/43/4-10x3 1/4 hex c/s gr8 y/zinc b18.2.1147
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Clear7/16-14 x 3 1/47/16-14 x 3 1/4 hex cap screws gr 8 zinc b18.2.17
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 5Plain1/2-20 x 3 1/41/2-20 x 3 1/4 hex cap screws gr 5 plain b18.2.148
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 8Plain1/2-20 x 3 1/41/2-20 x 3 1/4 hex cap screws gr 8 plain b18.2.115
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 9Zinc/Clear1/2-20 x 3 1/41/2-20 x 3 1/4 hex cap screws gr 9 (mc12) zinc b18.2.18
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear9/16-12 x 3 1/49/16-12 x 3 1/4 hex cap screws gr 5 zinc b18.2.112
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 2Plain5/8-11 x 3 1/45/8-11 x 3 1/4 hex cap screws gr 2 plain b18.2.1193
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 8Plain5/8-11 x 3 1/45/8-11 x 3 1/4 hex cap screws gr 8 plain nylon patch b18.2.137
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Clear5/8-11 x 3 1/45/8-11 x 3 1/4 hex cap screws gr 8 zinc b18.2.14
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear5/8-18 x 3 1/45/8-18 x 3 1/4 hex cap screws gr 5 zinc b18.2.1134
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 8Plain5/8-18 x 3 1/45/8-18 x 3 1/4 hex cap screws gr 8 plain b18.2.11
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Yellow5/8-18 x 3 1/45/8-18 x 3 1/4 hex cap screws gr 8 z yellow b18.2.195
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 2Plain3/4-10 x 3 1/43/4-10 x 3 1/4 hex cap screws gr 2 plain b18.2.11161
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 8Plain3/4-16 x 3 1/43/4-16 x 3 1/4 hex cap screws gr 8 plain b18.2.147
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Yellow3/4-16 x 3 1/43/4-16 x 3 1/4 hex cap screws gr 8 z yellow b18.2.120
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Clear7/8-14 x 3 1/47/8-14 x 3 1/4 hex cap screws gr 8 zinc b18.2.11
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Yellow7/8-14 x 3 1/47/8-14 x 3 1/4 hex cap screws gr 8 z yellow b18.2.111
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear1-8 x 3 1/41-8 x 3 1/4 hex cap screws gr 5 zinc b18.2.168
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 8Plain1-8 x 3 1/41-8 x 3 1/4 hex cap screws gr 8 plain b18.2.13
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 5Zinc/Clear1-14 x 3 1/41-14 x 3 1/4 hex cap screws gr 5 zinc b18.2.111
    Contact_Supplier
B & K FASTPAHex Head Cap ScrewGrade 8Zinc/Yellow1-14 x 3 1/41-14 x 3 1/4 hex cap screws gr 8 z yellow b18.2.113
    Contact_Supplier
JET FITTINGCAHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 3 1/4bolt hex cap 1/213x3-1/4 grade 5 steel zinc b18.2.118
    Contact_Supplier
JET FITTINGCAHex Head Cap Screw316, 317, A4 StainlessPlain5/8-11 x 3 1/45/8-11x3 1/4 (pt) unc hex cap screws stainlestainless steel hex cap screws stainless 316 hhcs astm f593 (inch) b18.2.113
    Contact_Supplier
WurthOntHex Head Cap ScrewGrade 5Zinc/Clear1/2-13 x 3 1/4scr hcs gr5 (zn) 1/2-13x3 1/4 b18.2.121
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 2Plain5/16-18 x 3 1/4gr2 hex c/s b18.2.11,555
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 5Zinc/Clear1/4-20 x 3 1/4gr5 hex c/s b18.2.11,382
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 8Zinc/Yellow1/4-20 x 3 1/4gr8 hex c/s z&y b18.2.1398
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 2Plain3/8-16 x 3 1/4gr2 hex c/s b18.2.176
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 8Zinc/Yellow5/8-11 x 3 1/4gr8 hex c/s z&y b18.2.170
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 8Zinc/Yellow7/8-9 x 3 1/4gr8 hex c/s z&y b18.2.159
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 8Zinc/Yellow3/8-16 x 3 1/4gr8 hex c/s z&y b18.2.160
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 2Zinc/Clear1/2-13 x 3 1/4gr2 hex c/s b18.2.156
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 2Plain5/8-11 x 3 1/4gr2 hex c/s b18.2.153
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 5Zinc/Clear7/16-14 x 3 1/4gr5 hex c/s b18.2.149
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 2Zinc/Clear5/16-18 x 3 1/4gr2 hex c/s b18.2.138
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 2Plain7/8-9 x 3 1/4gr2 hex c/s b18.2.128
    Contact_Supplier
THRDFASTFLHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 3 1/418-8 ss hex c/s b18.2.124
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 5Plain3/4-10 x 3 1/4gr5 hex c/s b18.2.122
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 8Zinc/Yellow3/4-10 x 3 1/4gr8 hex c/s z&y b18.2.120
    Contact_Supplier
THRDFASTFLHex Head Cap Screw316, 317, A4 StainlessPlain7/8-9 x 3 1/4t-316 ss hex c/s b18.2.119
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 8Zinc/Yellow1/2-13 x 3 1/4gr8 hex c/s z&y b18.2.125
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 2Zinc/Clear1-8 x 3 1/4gr2 hex c/s b18.2.111
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 8Plain5/8-11 x 3 1/4gr8 hex c/s b18.2.115
    Contact_Supplier
THRDFASTFLHex Head Cap ScrewGrade 8Zinc/Yellow1-8 x 3 1/4gr8 hex c/s z&y b18.2.12
    Contact_Supplier
QFSMIHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/4-20 x 3 1/4c/s , USS thread (18-8) b18.2.1stock
    Contact_Supplier
QFSMIHex Head Cap Screw300 Stainless (A1,A2, 18-8,304,310 etc.)Plain5/16-18 x 3 1/4c/s , USS thread (18-8) b18.2.1stock
    Contact_Supplier

Trademarks identified with products listed on this website are the property of their respective owners, not FastenersClearingHouse.com.