► Socket Screws

Socket Screws – Fasteners for Precision Assembly & High-Torque Applications Socket screws, also known as Allen screws or hex socket screws, are designed for high-strength, precision fastening in machinery, fabrication, & equipment assembly. With internal hex drives, they enable tight installation in confined spaces & deliver superior torque transfer. Available...

Socket Screws – Fasteners for Precision Assembly & High-Torque Applications

Socket screws, also known as Allen screws or hex socket screws, are designed for high-strength, precision fastening in machinery, fabrication, & equipment assembly. With internal hex drives, they enable tight installation in confined spaces & deliver superior torque transfer. Available in cap head, button head, & countersunk varieties, our socket screws are ideal for mechanical repairs, tooling setups, & metalwork builds.

What’s in This Collection:
► Socket cap screws for strong mechanical joints
► Button head & countersunk options for low-profile assembly
► Metric & imperial sizes in alloy, stainless, & black oxide
► Precision-machined threads for accurate fit
► Bulk packs for manufacturing & repair workshops

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  • Alphabetically, A-Z
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  • BBI - M3-0.50x8mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824006
    BBI - M3-0.50x8mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824006
    BBI - M3-0.50x8mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824006This BBI M3 is a low-profile button head socket screw driven with an Allen key.► Key Features Size: M3 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance Drive:...
    $0.09
    $0.09
  • BBI - M2-0.40x5mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824005
    BBI - M2-0.40x5mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824005
    BBI - M2-0.40x5mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824005This BBI M2 is a low-profile button head socket screw driven with an Allen key.► Key Features Size: M2 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance Drive:...
    $0.56
    $0.56
  • BBI - M3-0.50x6mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824004
    BBI - M3-0.50x6mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824004
    BBI - M3-0.50x6mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824004This BBI M3 is a low-profile button head socket screw driven with an Allen key.► Key Features Size: M3 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance Drive:...
    $0.09
    $0.09
  • BBI - M3-0.50x5mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824003
    BBI - M3-0.50x5mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824003
    BBI - M3-0.50x5mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824003This BBI M3 is a low-profile button head socket screw driven with an Allen key.► Key Features Size: M3 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance Drive:...
    $0.16
    $0.16
  • BBI - M2-0.40x4mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824002
    BBI - M2-0.40x4mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824002
    BBI - M2-0.40x4mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824002This BBI M2 is a low-profile button head socket screw driven with an Allen key.► Key Features Size: M2 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance Drive:...
    $0.51
    $0.51
  • BBI - M2-0.40x3mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824001
    BBI - M2-0.40x3mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824001
    BBI - M2-0.40x3mm (Ft) - Metric Button Socket Screw A2-70 (304) | 824001This BBI M2 is a low-profile button head socket screw driven with an Allen key.► Key Features Size: M2 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance Drive:...
    $0.33
    $0.33
  • BBI - M3-0.50x50mm (Pt) - Metric Countersunk Socket Screw A2-70 (304) | 823724
    BBI - M3-0.50x50mm (Pt) - Metric Countersunk Socket Screw A2-70 (304) | 823724
    BBI - M3-0.50x50mm (Pt) - Metric Countersunk Socket Screw A2-70 (304) | 823724This BBI M3 is a countersunk socket screw that sits flush, driven with an Allen key.► Key Features Size: M3 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance...
    $0.35
    $0.35
  • BBI - M12-1.75x150mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823607
    BBI - M12-1.75x150mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823607
    BBI - M12-1.75x150mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823607This BBI M12 is a countersunk socket screw that sits flush, driven with an Allen key.► Key Features Size: M12 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance...
    $103.22
    $103.22
  • BBI - M12-1.75x140mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823606
    BBI - M12-1.75x140mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823606
    BBI - M12-1.75x140mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823606This BBI M12 is a countersunk socket screw that sits flush, driven with an Allen key.► Key Features Size: M12 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance...
    $96.33
    $96.33
  • BBI - M12-1.75x130mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823604
    BBI - M12-1.75x130mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823604
    BBI - M12-1.75x130mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823604This BBI M12 is a countersunk socket screw that sits flush, driven with an Allen key.► Key Features Size: M12 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance...
    $38.15
    $38.15
  • BBI - M10-1.50x150mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823596
    BBI - M10-1.50x150mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823596
    BBI - M10-1.50x150mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823596This BBI M10 is a countersunk socket screw that sits flush, driven with an Allen key.► Key Features Size: M10 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance...
    $98.73
    $98.73
  • BBI - M10-1.50x140mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823595
    BBI - M10-1.50x140mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823595
    BBI - M10-1.50x140mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823595This BBI M10 is a countersunk socket screw that sits flush, driven with an Allen key.► Key Features Size: M10 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance...
    $92.13
    $92.13
  • BBI - M2.5-0.45x30mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823582
    BBI - M2.5-0.45x30mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823582
    BBI - M2.5-0.45x30mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823582This BBI M2.5 is a countersunk socket screw that sits flush, driven with an Allen key.► Key Features Size: M2.5 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance...
    $1.32
    $1.32
  • BBI - M2.5-0.45x25mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823581
    BBI - M2.5-0.45x25mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823581
    BBI - M2.5-0.45x25mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823581This BBI M2.5 is a countersunk socket screw that sits flush, driven with an Allen key.► Key Features Size: M2.5 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance...
    $1.29
    $1.29
  • BBI - M2-0.40x30mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823538
    BBI - M2-0.40x30mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823538
    BBI - M2-0.40x30mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823538This BBI M2 is a countersunk socket screw that sits flush, driven with an Allen key.► Key Features Size: M2 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance...
    $1.73
    $1.73
  • BBI - M2-0.40x25mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823537
    BBI - M2-0.40x25mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823537
    BBI - M2-0.40x25mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823537This BBI M2 is a countersunk socket screw that sits flush, driven with an Allen key.► Key Features Size: M2 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance...
    $1.46
    $1.46
  • BBI - M2-0.40x20mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823536
    BBI - M2-0.40x20mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823536
    BBI - M2-0.40x20mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823536This BBI M2 is a countersunk socket screw that sits flush, driven with an Allen key.► Key Features Size: M2 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance...
    $1.38
    $1.38
  • BBI - M2-0.40x16mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823535
    BBI - M2-0.40x16mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823535
    BBI - M2-0.40x16mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823535This BBI M2 is a countersunk socket screw that sits flush, driven with an Allen key.► Key Features Size: M2 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance...
    $0.87
    $0.87
  • BBI - M2-0.40x12mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823534
    BBI - M2-0.40x12mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823534
    BBI - M2-0.40x12mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823534This BBI M2 is a countersunk socket screw that sits flush, driven with an Allen key.► Key Features Size: M2 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance...
    $0.83
    $0.83
  • BBI - M2-0.40x10mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823533
    BBI - M2-0.40x10mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823533
    BBI - M2-0.40x10mm (Ft) - Metric Countersunk Socket Screw A2-70 (304) | 823533This BBI M2 is a countersunk socket screw that sits flush, driven with an Allen key.► Key Features Size: M2 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel for corrosion resistance...
    $0.79
    $0.79

Precision Fastening That Delivers

From fabrication tables to engine components, our socket screws deliver tight, high-strength fastening in every rotation. Trust them in builds where clearance, durability, & reliability matter.

► High-torque drive for confident, flush installation

► Ideal for machine tools, robotics & structural assemblies

► Available in corrosion-resistant & black finishes

Frequently Asked Questions

Socket screws allow for high clamping force in tighter spaces with internal drive heads, making them ideal for machine assembly & compact builds.

Absolutely. Their high tensile strength & precision fit make them a go-to fastener for tools, engines, & equipment.

Yes. We offer stainless socket screws for corrosion resistance & outdoor use, along with alloy steel options for heavy-duty strength.

Brands

BBI

BBI
Bremick

Bremick
Champion

Champion
EHI

EHI
Excision

Excision
Hobsons

Hobsons
Rally

Rally