Socket Head Screws

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Expected delivery: Wed, Nov 18

Socket head screws are driven with a hex key, so they fit in tight spaces where a wrench cannot swing. Machine builders, tool and die shops and maintenance crews use them on fixtures, dies, motor mounts and guards. This section includes standard socket head cap screws, low head cap screws, button head and flat head socket screws, shoulder screws and set screws, in UNC, UNF and metric threads.

What to check before you order

Material. Black-oxide alloy steel is heat treated for high strength and is the usual choice for machinery. 18-8 and 316 stainless resist corrosion but are not as strong as alloy.
Head style. Standard heads give the most drive strength. Button heads have a low, rounded profile for guards and panels. Flat heads sit flush in an 82 degree countersink on inch screws and 90 degrees on metric.
Drive size. Check that your hex key set covers the drive. A worn key strips the socket, so replace keys that are rounded.
Set screw point. Cup point is the common choice for gripping a shaft. Flat point is used where the shaft will be adjusted often, and dog point locates in a hole or groove.

Common questions

How is a flat head socket screw measured?

Overall, from the top of the head to the tip, because the head sits flush with the surface.

See the fasteners category, machine screws for slotted and Phillips styles, and our thread sizes guide.

Socket Head Screws: page 31

Approved Vendor M10-1.5x12 Class 12.9 Alloy Button Socket Head Cap Screws Black Oxide SKU 542 $0.98
Approved Vendor M10-1.5x12 Class 12.9 Alloy Button Socket Head Cap Screws Zinc SKU 543 $1.15
Approved Vendor M10-1.5x12 Class 12.9 Alloy Flat Socket Head Cap Screws Black Oxide SKU 3701000 $288.81
Approved Vendor M10-1.5x12 Class 12.9 Alloy Socket Head Cap Screws Black Oxide SKU 698 $0.83
Approved Vendor M10-1.5x12 Class 12.9 Alloy Socket Head Cap Screws Zinc Plated SKU 699 $1.32
Approved Vendor M10-1.5x12 Class 45H Cup Point Allen Socket Set Screws Black Oxide SKU 28864 $0.46
Approved Vendor M10-1.5x120 Class 12.9 Alloy Flat Socket Head Cap Screws Black Oxide SKU 394150 $269.66
Approved Vendor M10-1.5x120 Class 12.9 Alloy Socket Head Cap Screws Black Oxide SKU 730 $3.20
Approved Vendor M10-1.5x15 Class 12.9 Alloy Socket Head Cap Screws Black Oxide SKU 700 $0.84
Approved Vendor M10-1.5x15 Class 12.9 Alloy Socket Head Cap Screws Zinc Plated SKU 701 $1.07
Approved Vendor M10-1.5x150 Class 12.9 Alloy Socket Head Cap Screws Black Oxide SKU 731 $3.78
Approved Vendor M10-1.5x16 Class 12.9 Alloy Button Socket Head Cap Screws Zinc SKU 545 $1.01
Approved Vendor M10-1.5x16 Class 12.9 Alloy Flat Socket Head Cap Screws Black Oxide SKU 3711000 $282.86
Approved Vendor M10-1.5x16 Class 12.9 Alloy Flat Socket Head Cap Screws Zinc SKU 3721000 $349.56
Approved Vendor M10-1.5x16 Class 12.9 Alloy Socket Head Cap Screws Zinc Plated SKU 702 $1.34
Approved Vendor M10-1.5x16 Class 45H Cup Point Allen Socket Set Screws Black Oxide SKU 28863 $0.69
Approved Vendor M10-1.5x20 Class 12.9 Alloy Button Socket Head Cap Screws Black Oxide SKU 546 $0.96
Approved Vendor M10-1.5x20 Class 12.9 Alloy Button Socket Head Cap Screws Zinc SKU 547 $1.20
Approved Vendor M10-1.5x20 Class 12.9 Alloy Flat Socket Head Cap Screws Black Oxide SKU 373800 $262.65
Approved Vendor M10-1.5x20 Class 12.9 Alloy Flat Socket Head Cap Screws Zinc SKU 374800 $323.97
Approved Vendor M10-1.5x20 Class 12.9 Alloy Socket Head Cap Screws Black Oxide SKU 703 $0.71
Approved Vendor M10-1.5x20 Class 12.9 Alloy Socket Head Cap Screws Zinc Plated SKU 704 $1.30
Approved Vendor M10-1.5x25 Class 12.9 Alloy Button Socket Head Cap Screws Black Oxide SKU 548 $1.11
Approved Vendor M10-1.5x25 Class 12.9 Alloy Button Socket Head Cap Screws Zinc SKU 549 $1.38
Approved Vendor M10-1.5x25 Class 12.9 Alloy Flat Socket Head Cap Screws Black Oxide SKU 375700 $278.97
Approved Vendor M10-1.5x25 Class 12.9 Alloy Flat Socket Head Cap Screws Zinc SKU 376700 $343.92
Approved Vendor M10-1.5x25 Class 12.9 Alloy Socket Head Cap Screws Black Oxide SKU 705 $0.76
Approved Vendor M10-1.5x25 Class 12.9 Alloy Socket Head Cap Screws Zinc Plated SKU 706 $1.44
Approved Vendor M10-1.5x30 Class 12.9 Alloy Button Socket Head Cap Screws Black Oxide SKU 550 $1.28
Approved Vendor M10-1.5x30 Class 12.9 Alloy Button Socket Head Cap Screws Zinc SKU 551 $1.59
Approved Vendor M10-1.5x30 Class 12.9 Alloy Flat Socket Head Cap Screws Black Oxide SKU 377600 $266.70
Approved Vendor M10-1.5x30 Class 12.9 Alloy Flat Socket Head Cap Screws Zinc SKU 378600 $329.26
Approved Vendor M10-1.5x30 Class 12.9 Alloy Socket Head Cap Screws Black Oxide SKU 707 $0.83
Approved Vendor M10-1.5x30 Class 12.9 Alloy Socket Head Cap Screws Zinc Plated SKU 708 $1.57
Approved Vendor M10-1.5x35 Class 12.9 Alloy Button Socket Head Cap Screws Black Oxide SKU 552 $1.44
Approved Vendor M10-1.5x35 Class 12.9 Alloy Flat Socket Head Cap Screws Black Oxide SKU 379500 $255.78
Approved Vendor M10-1.5x35 Class 12.9 Alloy Flat Socket Head Cap Screws Zinc SKU 380500 $315.63
Approved Vendor M10-1.5x35 Class 12.9 Alloy Socket Head Cap Screws Black Oxide SKU 709 $0.93
Approved Vendor M10-1.5x35 Class 12.9 Alloy Socket Head Cap Screws Zinc Plated SKU 710 $1.94
Approved Vendor M10-1.5x40 Class 12.9 Alloy Flat Socket Head Cap Screws Black Oxide SKU 381500 $272.71
Approved Vendor M10-1.5x40 Class 12.9 Alloy Flat Socket Head Cap Screws Zinc SKU 382500 $301.61
Approved Vendor M10-1.5x40 Class 12.9 Alloy Socket Head Cap Screws Black Oxide SKU 711 $1.01
Approved Vendor M10-1.5x40 Class 12.9 Alloy Socket Head Cap Screws Zinc Plated SKU 712 $1.90
Approved Vendor M10-1.5x45 Class 12.9 Alloy Flat Socket Head Cap Screws Black Oxide SKU 383400 $256.55
Approved Vendor M10-1.5x45 Class 12.9 Alloy Flat Socket Head Cap Screws Zinc SKU 384400 $316.60
Approved Vendor M10-1.5x45 Class 12.9 Alloy Socket Head Cap Screws Black Oxide SKU 713 $1.12
Approved Vendor M10-1.5x50 Class 12.9 Alloy Button Socket Head Cap Screws Black Oxide SKU 557 $1.84
Approved Vendor M10-1.5x50 Class 12.9 Alloy Flat Socket Head Cap Screws Black Oxide SKU 385400 $282.55

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