These screws fit into the milling of the part to be assembled, leaving a smooth surface. They are often found in machine tools and other tools from England. Available in small quantities for machine and tool maintenance.
Hexagon screws inch 90° countersunk head ASTM f835 English thread BSW
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All our dimensions
LengthDiamètre w
In stockAvailable to order
| 1/2W | 1/4W | 3/4W | 3/8W | 3/16W | 5/8W | 5/16W | |
|---|---|---|---|---|---|---|---|
| 1" |
BS 2470 1/2W 12 thread X 1" grade 8 hexagon socket countersunk head screw
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BS 2470 1/4W 20 thread X 1" grade 8 countersunk hex head screw
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BS 2470 3/8W 16 thread X 1 grade 8 hexagon socket countersunk head screw
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BS 2470 3/16W 24 threads X 1 grade 8 hexagon socket countersunk head screw
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Countersunk hex head screw BS 2470 5/16W 18 threads X 1 grade 8
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| 1"1/2 |
BS 2470 1/2W 12 thread X 11/2 grade 8 hexagon socket countersunk head screw
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BS 2470 1/4W 20 thread X 11/2 grade 8 countersunk hex head screw
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BS 2470 3/4W 10 thread X 11/2 grade 8 countersunk hex head screw
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BS 2470 3/16W 24 thread X 11/2 grade 8 countersunk hex head screw
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Hexagon socket countersunk head screw BS 2470 5/16W 18 threads X 11/2 grade 8
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| 1"1/4 |
BS 2470 1/2W 12 thread X 11/4 grade 8 hexagon socket countersunk head screw
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BS 2470 1/4W 20 thread X 11/4 grade 8 countersunk hex head screw
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BS 2470 3/16W 24 thread X 11/4 grade 8 countersunk hex head screw
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Hexagon socket countersunk head screw BS 2470 5/16W 18 threads X 11/4 grade 8
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| 1"3/4 |
BS 2470 1/2W 12 thread X 13/4 grade 8 hexagon socket countersunk head screw
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BS 2470 1/4W 20 thread X 13/4 grade 8 hexagon socket countersunk head screw
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BS 2470 3/8W 16 thread X 1"3/4 grade 8 countersunk hex head screw
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Hexagon socket countersunk head screw BS 2470 5/8W 11 threads X 13/4 grade 8
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| 1/2" |
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BS 2470 1/4W 20 thread X 1/2 grade 8 countersunk hex head screw
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BS 2470 3/16W 24 thread X 1/2 grade 8 countersunk hex head screw
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Hexagon socket countersunk head screw BS 2470 5/16W 18 threads X 1/2 grade 8
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| 2" |
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BS 2470 1/4W 20 thread X 2 grade 8 countersunk hex head screw
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BS 2470 3/8W 16 thread X 2" grade 8 countersunk hex head screw
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| 2"1/2 |
BS 2470 1/2W 12 thread X 21/2 grade 8 hexagon socket countersunk head screw
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BS 2470 3/8W 16 thread X 2"1/2 grade 8 socket head cap screw
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Hexagon socket countersunk head screw BS 2470 5/8W 11 threads X 21/2 grade 8
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| 3" |
BS 2470 1/2W 12 thread X 3 grade 8 hexagon socket countersunk head screw
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BS 2470 3/8W 16 thread X 3" grade 8 countersunk hex head screw
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BS 2470 5/8W 11 thread X 3 grade 8 hexagon socket countersunk head screw
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| 3"1/2 |
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Hexagon socket countersunk head screw BS 2470 5/8W 11 threads X 31/2 grade 8
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| 3/4" |
BS 2470 1/2W 12 thread X 3/4" grade 8 countersunk hex head screw
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BS 2470 1/4W 20 thread X 3/4 grade 8 countersunk hex head screw
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BS 2470 3/8W 16 thread X 3/4 grade 8 countersunk hex head screw
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BS 2470 3/16W 24 thread X 3/4 grade 8 countersunk hex head screw
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Hexagon socket countersunk head screw BS 2470 5/16W 18 threads X 3/4 grade 8
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| 3/8" |
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BS 2470 3/16W 24 thread X 3/8 grade 8 countersunk hex head screw
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| 4" |
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BS 2470 3/4W 10 thread X 4 grade 8 countersunk hex head screw
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BS 2470 5/8W 11 thread X 4 grade 8 countersunk hex head screw
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| 5/8" |
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BS 2470 1/4W 20 thread X 5/8 grade 8 countersunk hex head screw
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BS 2470 3/8W 16 thread X 5/8 grade 8 countersunk hex head screw
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BS 2470 3/16W 24 thread X 5/8 grade 8 countersunk hex head screw
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Hexagon socket countersunk head screw BS 2470 5/16W 18 threads X 5/8 grade 8
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