These screws engage in the milling of the part to be assembled, leaving a smooth surface. We regularly find them in machine tools and other tooling from the USA. Available in small quantities for maintenance of your imported American machines and tools.
Hexagon screws inch countersunk 82°(angle 60°) ANSI B18.3 ASTM f835 american threads UNC-UNF
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All our dimensions
LengthDiamètre nc
In stockAvailable to order
| 1/2NC | 1/4NC | 3/4NC | 3/8NC | 4NC | 5/8NC | 5/16NC | 5NC | 6NC | 7/16NC | 8NC | 10NC | ||
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| 1" |
Grade 8 ANSI B.18.3 3/8NF 24-thread countersunk hex head screw X1
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ANSI B.18.3 1/2NC grade 8 countersunk hex head screw 13 threads X 1
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Grade 8 ANSI B.18.3 1/4NC 20 thread X 1" hexagon socket countersunk head screw
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Grade 8 ANSI B.18.3 3/8NC 16-thread countersunk hex head screw X 1
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Grade 8 ANSI B.18.3 5/16NC 18 thread X 1" countersunk hex head screw
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Grade 8 ANSI B.18.3 7/16NC 14-thread countersunk hex head screw X 1
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| 1"1/2 |
Grade 8 ANSI B.18.3 10NF 32 thread X 11/2 countersunk hex head screw
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Countersunk head screws, grade 8 ANSI B.18.3 1/4NC 20 threads X 11/2
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ANSI B.18.3 grade 8 countersunk hex head screw 3/8NC 16 threads X 11/2
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Grade 8 ANSI B.18.3 5/16NC 18 thread X 1"1/2 countersunk hex head screw
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Grade 8 ANSI B.18.3 7/16NC 14 thread X 11/2 hexagon socket head cap screw
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Grade 8 ANSI B.18.3 10NC 24 threads X 11/2 countersunk hex head screw
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| 1"1/4 |
Grade 8 ANSI B.18.3 3/8NF 24 threads X 11/4 countersunk hex head screw
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Grade 8 ANSI B.18.3 1/2NC 13 thread X 11/4 countersunk hex head screw
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Grade 8 ANSI B.18.3 1/4NC 20 thread X 11/4 countersunk hex head screw
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Grade 8 ANSI B.18.3 3/8NC 16 thread X 11/4 countersunk hex head screw
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Grade 8 ANSI B.18.3 5/8NC 11 thread X 11/4 countersunk hex head screw
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Grade 8 ANSI B.18.3 7/16NC 14 thread X 11/4 countersunk hex head screw
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Grade 8 ANSI B.18.3 10NC 24 thread X 11/4 countersunk hex head screw
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| 1"3/4 |
Grade 8 ANSI B.18.3 1/2NF 20 thread X 13/4 countersunk hex head screw
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Grade 8 ANSI B.18.3 1/2NC 13 thread X 13/4 countersunk hex head screw
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Grade 8 ANSI B.18.3 1/4NC 20 thread X 13/4 countersunk hex head screw
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Grade 8 ANSI B.18.3 3/4NC 10 thread X 13/4 countersunk hex head screw
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ANSI B.18.3 grade 8 countersunk hex head screw 3/8NC 16 threads X 13/4
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Grade 8 ANSI B.18.3 5/8NC 11 thread X 13/4 countersunk hex head screw
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| 1/2" |
Grade 8 ANSI B.18.3 10NF 32 thread X 1/2" hexagon socket countersunk head screw
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Grade 8 ANSI B.18.3 1/4NC 20 thread X 1/2" hexagon socket countersunk head screw
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ANSI B.18.3 grade 8 countersunk hex head screw 3/8NC 16 threads X 1/2
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Grade 8 ANSI B.18.3 4NC 40 thread X 1/2 countersunk hex head screw
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ANSI B.18.3 grade 8 countersunk hex head screw 5/16NC 18 threads X 1/2
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Grade 8 ANSI B.18.3 5NC 40 thread X 1/2" countersunk hex head screw
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Grade 8 ANSI B.18.3 6NC 32 thread X 1/2" countersunk hex head screw
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Grade 8 ANSI B.18.3 8NC 32 thread X 1/2" hexagon socket countersunk head screw
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Grade 8 ANSI B.18.3 10NC 24 threads X 1/2" hexagon socket countersunk head screw
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| 1/4" |
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ANSI B.18.3 grade 8 hexagon socket head cap screw 6NC 32 threads X 1/4
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| 2" |
Grade 8 ANSI B.18.3 1/2NF 20 thread countersunk hex head screw X 2
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ANSI B.18.3 1/2NC grade 8 countersunk hex head screw 13 threads X 2
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Grade 8 ANSI B.18.3 1/4NC 20 thread X 2" hexagon socket countersunk head screw
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ANSI B.18.3 grade 8 hexagon socket head cap screw 3/4NC 10 threads X 2
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ANSI B.18.3 3/8NC 16 thread X 2 "grade 8 hexagon socket head cap screw
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Grade 8 ANSI B.18.3 5/8NC 11-thread countersunk hex head screw X 2
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| 2"1/2 |
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Grade 8 ANSI B.18.3 1/2NC 13 thread X 21/2 countersunk hex head screw
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ANSI B.18.3 grade 8 hexagon socket head cap screw 3/4NC 10 threads X 2"1/2
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ANSI B.18.3 grade 8 countersunk hex head screw 3/8NC 16 threads X 21/2
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Grade 8 ANSI B.18.3 5/8NC 11 thread X 21/2 countersunk hex head screw
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Grade 8 ANSI B.18.3 5/16NC 18 threads X 21/2 countersunk hex head screw
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| 2"1/4 |
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Grade 8 ANSI B.18.3 1/2NC 13 thread X 21/4 countersunk hex head screw
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Grade 8 ANSI B.18.3 3/8NC 16 thread X 2"1/4 countersunk hex head screw
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Grade 8 ANSI B.18.3 5/8NC 11 thread X 21/4 countersunk hex head screw
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Grade 8 ANSI B.18.3 5/16NC 18 thread X 21/4 countersunk hex head screw
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| 3" |
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Grade 8 ANSI B.18.3 1/2NC 13 thread X 3 countersunk hex head screw
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ANSI B.18.3 grade 8 hexagon socket head cap screw 3/4NC 10 threads X 3
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ANSI B.18.3 grade 8 countersunk hex head screw 3/8NC 16 threads X 3
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| 3/4" |
Grade 8 ANSI B.18.3 3/8NF 24 thread X 3/4 countersunk hex head screw
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Grade 8 ANSI B.18.3 1/2NC 13 thread X 3/4 countersunk hex head screw
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Grade 8 ANSI B.18.3 1/4NC 20 thread X 3/4" hexagon socket countersunk head screw
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Grade 8 ANSI B.18.3 3/8NC 16 thread X 3/4" hexagon socket countersunk head screw
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Grade 8 ANSI B.18.3 4NC 40 threads X 3/4" countersunk hex head screw
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Grade 8 ANSI B.18.3 5/16NC 18 thread X 3/4 countersunk hex head screw
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Grade 8 ANSI B.18.3 5NC 40 thread X 3/4" countersunk hex head screw
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Grade 8 ANSI B.18.3 6NC 32 thread X 3/4 countersunk head screw
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Countersunk head screws, grade 8 ANSI B.18.3 7/16NC 14 threads X 3/4
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Grade 8 ANSI B.18.3 10NC 24 thread X 3/4 countersunk hex head screw
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| 3/8" |
Grade 8 ANSI B.18.3 10NF 32 threads X 3/8" hexagon socket countersunk head screw
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Grade 8 ANSI B.18.3 1/4NC 20 thread X 3/8 countersunk hex head screw
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ANSI B.18.3 4NC 40 thread X 3/8" grade 8 countersunk hex head screw
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Grade 8 ANSI B.18.3 5NC 40 thread X 3/8" countersunk hex head screw
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Grade 8 ANSI B.18.3 6NC 32 thread X 3/8" countersunk hex head screw
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Grade 8 ANSI B.18.3 8NC 32 thread X 3/8" countersunk hex head screw
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Grade 8 ANSI B.18.3 10NC 24 threads X 3/8" hexagon socket countersunk head screw
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| 5/8" |
Grade 8 ANSI B.18.3 10NF 32 thread X 5/8 countersunk hex head screw
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Grade 8 ANSI B.18.3 1/4NC 20 thread X 5/8" hexagon socket countersunk head screw
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Grade 8 ANSI B.18.3 4NC 40 thread X 5/8 countersunk hex head screw
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ANSI B.18.3 grade 8 countersunk hex head screw 5/16NC 18 threads X 5/8
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Grade 8 ANSI B.18.3 5NC 40 threads X 5/8" countersunk hex head screw
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ANSI B.18.3 grade 8 hexagon socket head cap screw 6NC 32 threads X 5/8
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ANSI B.18.3 grade 8 hexagon socket head cap screw 8NC 32 threads X 5/8
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Grade 8 ANSI B.18.3 10NC 24 threads X 5/8" hexagon socket countersunk head screw
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