Socket Head Screws

2,000+ products

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 8

Approved Vendor #6-32x5/16" Alloy Button Head Socket Cap Screws Black Oxide SKU 10620 $0.12
Approved Vendor #6-32x5/16" Brass Flat Head Socket Cap Screw SKU 10624 $2.09
Approved Vendor #6-32x5/16" Brass Socket Head Cap Screw SKU 10625 $2.97
Approved Vendor #6-32x5/16'' Alloy Cup Point Allen Socket Set Screw Black Oxide SKU 10629 $0.12
Approved Vendor #6-32x5/8" 18-8 Stainless Steel Button Head Socket Cap Screws SKU 2540 $0.10
Approved Vendor #6-32x5/8" 18-8 Stainless Steel Flat Head Socket Cap Screws SKU 2646 $0.11
Approved Vendor #6-32x5/8" Alloy Button Head Socket Cap Screws Black Oxide SKU 10632 $0.15
Approved Vendor #6-32x5/8" Alloy Button Head Socket Cap Screws Zinc Clear SKU 10633 $0.14
Approved Vendor #6-32x5/8" Alloy Cup Point Allen Socket Set Screw Black Oxide SKU 10635 $0.24
Approved Vendor #6-32x5/8" Alloy Flat Head Socket Cap Screws Black Oxide SKU 10636 $0.15
Approved Vendor #6-32x5/8" Alloy Flat Head Socket Cap Screws Zinc Clear SKU 10637 $0.15
Approved Vendor #6-32x5/8" Alloy Socket Head Cap Screws Black Oxide SKU 10640 $0.18
Approved Vendor #6-32x5/8" Alloy Socket Head Cap Screws Zinc Clear SKU 10641 $0.18
Approved Vendor #6-32x5/8" Brass Flat Head Socket Cap Screw SKU 10644 $2.27
Approved Vendor #6-32x5/8" Brass Socket Head Cap Screw SKU 10645 $1.19
Approved Vendor #6-32x5/8" Low Socket Head Cap Screws Thermal Black Oxide SKU 10649 $0.33
Approved Vendor #6-32x5/8" Stainless Steel Cup Point Allen Socket Set Screw SKU 892 $0.22
Approved Vendor #6-32x7/16" Alloy Button Head Socket Cap Screws Black Oxide SKU 10660 $0.13
Approved Vendor #6-32x7/16" Alloy Cup Point Allen Socket Set Screw Black Oxide SKU 10661 $0.14
Approved Vendor #6-32x7/16" Stainless Steel Cup Point Allen Socket Set Screw SKU 890 $0.18
Approved Vendor #6-32x7/8" 18-8 Stainless Steel Button Head Socket Cap Screws SKU 2542 $0.13
Approved Vendor #6-32x7/8" 18-8 Stainless Steel Flat Head Socket Cap Screws SKU 2648 $0.14
Approved Vendor #6-32x7/8" Alloy Button Head Socket Cap Screws Black Oxide SKU 10664 $0.18
Approved Vendor #6-32x7/8" Alloy Button Head Socket Cap Screws Zinc Clear SKU 10665 $0.17
Approved Vendor #6-32x7/8" Alloy Cup Point Allen Socket Set Screw Black Oxide SKU 10666 $0.44
Approved Vendor #6-32x7/8" Alloy Flat Head Socket Cap Screws Black Oxide SKU 10667 $0.18
Approved Vendor #6-32x7/8" Alloy Flat Head Socket Cap Screws Zinc Clear SKU 10668 $0.15
Approved Vendor #6-32x7/8" Alloy Socket Head Cap Screws Black Oxide SKU 10670 $0.20
Approved Vendor #6-32x7/8" Alloy Socket Head Cap Screws Zinc Clear SKU 10671 $0.20
Approved Vendor #6-40x1" Alloy Button Head Socket Cap Screws Black Oxide SKU 10691 $0.54
Approved Vendor #6-40x1" Alloy Flat Head Socket Cap Screws Black Oxide SKU 10692 $0.42
Approved Vendor #6-40x1" Alloy Socket Head Cap Screws Black Oxide SKU 10693 $0.32
Approved Vendor #6-40x1-1/2" Alloy Socket Head Cap Screws Black Oxide SKU 10694 $0.74
Approved Vendor #6-40x1-1/4" Alloy Socket Head Cap Screws Black Oxide SKU 10695 $0.64
Approved Vendor #6-40x1/2" Alloy Button Head Socket Cap Screws Black Oxide SKU 10696 $0.30
Approved Vendor #6-40x1/2" Alloy Flat Head Socket Cap Screws Black Oxide SKU 10697 $0.18
Approved Vendor #6-40x1/2" Alloy Socket Head Cap Screws Black Oxide SKU 10699 $0.19
Approved Vendor #6-40x1/2" Alloy Socket Head Cap Screws Zinc Clear SKU 10700 $0.19
Approved Vendor #6-40x1/4" Alloy Button Head Socket Cap Screws Black Oxide SKU 10701 $0.24
Approved Vendor #6-40x1/4" Alloy Flat Head Socket Cap Screws Black Oxide SKU 10702 $0.22
Approved Vendor #6-40x1/4" Alloy Socket Head Cap Screws Black Oxide SKU 10705 $0.18
Approved Vendor #6-40x1/4" Alloy Socket Head Cap Screws Zinc Clear SKU 10706 $0.17
Approved Vendor #6-40x3/4" Alloy Button Head Socket Cap Screws Black Oxide SKU 10711 $0.47
Approved Vendor #6-40x3/4" Alloy Flat Head Socket Cap Screws Black Oxide SKU 10712 $0.25
Approved Vendor #6-40x3/4" Alloy Socket Head Cap Screws Black Oxide SKU 10714 $0.21
Approved Vendor #6-40x3/4" Alloy Socket Head Cap Screws Zinc Clear SKU 10715 $0.21
Approved Vendor #6-40x3/8" 18-8 Stainless Steel Flat Head Socket Cap Screws SKU 2717 $0.12
Approved Vendor #6-40x3/8" Alloy Button Head Socket Cap Screws Black Oxide SKU 10716 $0.25

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