► 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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  • BBI - M3-0.50x20mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549016
    BBI - M3-0.50x20mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549016
    BBI - M3-0.50x20mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549016This BBI M3 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M3 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $0.28
    $0.28
  • BBI - M3-0.50x16mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549012
    BBI - M3-0.50x16mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549012
    BBI - M3-0.50x16mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549012This BBI M3 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M3 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $0.22
    $0.22
  • BBI - M3-0.50x12mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549010
    BBI - M3-0.50x12mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549010
    BBI - M3-0.50x12mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549010This BBI M3 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M3 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $0.21
    $0.21
  • BBI - M3-0.50x10mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549008
    BBI - M3-0.50x10mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549008
    BBI - M3-0.50x10mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549008This BBI M3 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M3 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $0.17
    $0.17
  • BBI - M3-0.50x8mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549006
    BBI - M3-0.50x8mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549006
    BBI - M3-0.50x8mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549006This BBI M3 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M3 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $0.17
    $0.17
  • BBI - M3-0.50x6mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549004
    BBI - M3-0.50x6mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549004
    BBI - M3-0.50x6mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549004This BBI M3 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M3 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $0.17
    $0.17
  • BBI - M3-0.50x5mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549003
    BBI - M3-0.50x5mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549003
    BBI - M3-0.50x5mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549003This BBI M3 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M3 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $0.24
    $0.24
  • BBI - M3-0.50x4mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549002
    BBI - M3-0.50x4mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549002
    BBI - M3-0.50x4mm (Ft) - Metric Socket Head Cap Screw A4-70 (316) | 549002This BBI M3 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M3 Grade: A4 for reliable strength Finish: 316 Stainless Steel...
    $0.23
    $0.23
  • BBI - M14-2.00x100mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538627
    BBI - M14-2.00x100mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538627
    BBI - M14-2.00x100mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538627This BBI M14 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M14 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel...
    $19.04
    $19.04
  • BBI - M14-2.00x90mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538626
    BBI - M14-2.00x90mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538626
    BBI - M14-2.00x90mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538626This BBI M14 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M14 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel...
    $17.98
    $17.98
  • BBI - M14-2.00x80mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538625
    BBI - M14-2.00x80mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538625
    BBI - M14-2.00x80mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538625This BBI M14 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M14 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel...
    $16.92
    $16.92
  • BBI - M14-2.00x70mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538624
    BBI - M14-2.00x70mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538624
    BBI - M14-2.00x70mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538624This BBI M14 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M14 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel...
    $15.86
    $15.86
  • BBI - M14-2.00x60mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538623
    BBI - M14-2.00x60mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538623
    BBI - M14-2.00x60mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538623This BBI M14 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M14 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel...
    $13.75
    $13.75
  • BBI - M14-2.00x55mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538622
    BBI - M14-2.00x55mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538622
    BBI - M14-2.00x55mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538622This BBI M14 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M14 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel...
    $10.58
    $10.58
  • BBI - M8-1.25x200mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538621
    BBI - M8-1.25x200mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538621
    BBI - M8-1.25x200mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538621This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel...
    $58.46
    $58.46
  • BBI - M8-1.25x180mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538620
    BBI - M8-1.25x180mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538620
    BBI - M8-1.25x180mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538620This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel...
    $33.00
    $33.00
  • BBI - M8-1.25x160mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538619
    BBI - M8-1.25x160mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538619
    BBI - M8-1.25x160mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538619This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel...
    $21.05
    $21.05
  • BBI - M8-1.25x150mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538618
    BBI - M8-1.25x150mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538618
    BBI - M8-1.25x150mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538618This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel...
    $8.99
    $8.99
  • BBI - M8-1.25x140mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538617
    BBI - M8-1.25x140mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538617
    BBI - M8-1.25x140mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538617This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel...
    $8.46
    $8.46
  • BBI - M8-1.25x130mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538616
    BBI - M8-1.25x130mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538616
    BBI - M8-1.25x130mm (Pt) - Metric Socket Head Cap Screw A2-70 (304) | 538616This BBI M8 is a cylindrical socket head cap screw driven with an Allen key for high-torque clamping.► Key Features Size: M8 Grade: A2-70 for reliable strength Finish: 304 Stainless Steel...
    $7.93
    $7.93

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